DSLR推荐 Canon EOS450D
Canon 450D 比过往的400d进行了多项实用改进 包括不锈钢底架(非CUSCO) 点测光 9个对焦点 使用SD卡性价比很高 热情推荐 此机器的最大好处是重量轻 体积小 安装canon 35mm/f2 这类尺寸小的镜头后 可以随意塞在包里 当作扫街利器 普及型产品,专业级画质
EOS 450D采用了佳能自主开发生产的大型单片式高分辨率高灵敏度CMOS图像感应器,具有约1220万有效像素,感应器规格为APS-C,尺寸22.2mm×14.8mm,使用镜头的焦距转换系数为1.6。此CMOS得益于先进的技术,实现了ISO 100-1600感光度设置(ISO可以整级调节,并可设置自动ISO)和优异的动态范围,暗部和高光部分的细节都非常出色。感应器前配有三层低通滤镜,在保持高分辨率的同时可以有效抑制错误色彩的产生。EOS 450D配备DIGIC III数字影像处理器,采用14位模拟/数字信号转换,可高速高质地处理数据,令图像更有层次感,同时可以使明亮的高饱和度被摄体的色彩还原更加自然,自动白平衡更加准确,暗光线下的错误色彩和噪音信号更少,从而带来出色的影像。EOS 450D具备准确的白平衡表现和出色的低噪点性能,可以满足摄影师不同的拍摄需要。相机还可以进行高光色调优先拍摄,可以使图像高光部分的细节损失降到最低。
迅捷反应,高速连拍
得益于CMOS感应器高速数据读取技术和DIGIC III数字影像处理器的高速处理能力,EOS 450D具有出色的高速反应和连拍性能,最快达到约3.5张/秒的高速连拍,一次可以连续拍摄53张高质量的JPEG图像或6张RAW图像!EOS 450D具备1/4000秒高快门速度和1/200秒的闪光同步速度;启动时间很短,开机0.1秒后就可进入到拍摄状态;拍摄中的各项时滞也大大缩短,快门时滞仅有约90毫秒,取景器全黑时间约为130毫秒,这些都完全可以满足普通摄影爱好者对拍摄速度的要求。
先进的9点宽区自动对焦系统
EOS 450D采用了先进的9点宽区自动对焦系统,其中中心对焦点采用十字型对焦传感器,对焦灵敏精确。9个对焦点的位置根据相机图像感应器的尺寸进行了优化,非常方便进行构图。相机具有出色的暗光线下的对焦能力,在EV-0.5至EV18的范围内都可以实现自动对焦。EOS 450D还具有自动对焦光源检测功能,在人工光源环境下其对焦性能也可得到改善。
3.0"宽视角LCD液晶监视器与实时显示拍摄模式
EOS 450D采用3.0英寸23万点的大尺寸宽视角LCD液晶监视器,在各个方向的浏览视角都达到了170度;其亮度可进行7级调节,最大亮度比EOS 400D提高了约30%,即使在亮光线下也可轻松浏览LCD。当拍摄者随时举起相机使用光学取景器拍摄时,LCD上方的传感器能感应到这一操作变化,即时关闭LCD的显示,使拍摄更加方便和舒适。在浏览LCD时,可以从1.5至10倍放大图像,以方便检查焦点和图像细节。
EOS 450D具有实时显示拍摄模式,可以直接通过LCD取景拍摄。使用此功能时,CMOS感应器输出的图像将以100%的视野率实时显示在LCD上,显示的图像可以放大,这有助于初学者获得精确的对焦,可缩短工作流程并提高拍摄效率。实时显示拍摄模式可以通过调整拍摄参数实时查看曝光效果和景深的变化,还可以设置网格线、长宽比辅助线等,方便用户精确控制取景范围。在实时显示拍摄模式下,相机默认设置使用手动对焦,通过菜单选择还可以设置两种自动对焦方式:快速模式和实时模式,大大提高了对焦的方便性。
EOS综合除尘系统
EOS 450D具有完善的EOS综合除尘系统(EOS Integrated Cleaning System),它通过抑制灰尘产生和积淀、有效清除灰尘的多重防护,避免了灰尘对画质的影响。EOS综合除尘系统包括三个部分:感应器自清洁单元(Self Cleaning Sensor Unit)、除尘功能(Dust Delete Function)和手动清洁感应器。
影响画质的灰尘通常附着在CMOS感应器最外层滤镜上,为此,在最外层滤镜上安装压电元件,通过产生超声波带动滤镜加速振动,震落附着在上面的灰尘,这就是感应器自清洁单元。EOS 综合除尘系统的除尘功能专门针对感应器自清洁单元难以清除的轻微或具有粘性的顽固灰尘,将检测好的灰尘大小及位置等数据添加到此后拍摄的照片数据中,使用随机软件Digital Photo Professional的除尘功能,可以有效减少灰尘对画质的影响。
强大功能,人性操作
EOS 450D采用了明亮的光学取景器,具备95%的视野率,其放大倍率达到0.87倍,取景视角为24.5度,能为用户带来舒适的取景感受。在测光方面,EOS 450D具有包括新增的点测光在内的四种测光模式,可以满足各种光线环境下准确测光的要求。EOS 450D具有丰富强大的照片风格功能,可以设置多种基本照片风格和自定义照片风格,还可以从佳能网站下载风格文件应用于相机,或利用随机软件编辑设置自己的风格文件,轻松实现创意并拍摄出优秀的照片。EOS 450D新增自动亮度优化功能,能够根据拍摄场景自动优化亮度和反差,大大提高拍摄的成功率。EOS 450D的外形小巧轻便,手柄设计采用和佳能高端数码单反相机相同的设计思路,不仅观感好,而且握持舒适。EOS 450D将ISO感光度调整按钮设置在主拨盘的旁边,同时在取景器内增加了ISO感光度数值的显示,这样拍摄者可以非常方便地在取景器内观察并操作ISO感光度的调整。相机的操作界面经过重新设计,各种信息一目了然,界面的背景颜色提供四种风格选择,拍摄者可以根据自己的喜好习惯或拍摄环境进行设置。
完善的系统支持
EOS 450D支持SD和SDHC卡存储,为拍摄者带来了更多方便。EOS 450D使用新的锂电池,它的容量是1080毫安,持续拍摄能力更强。同时,EOS 450D还拥有包括电池盒兼手柄、汽车电池充电器、相机套、相机背带、接目增距器等在内的全新系列附件,可以让摄影者充分享受单反系统的拍摄乐趣。
[2008-01-24 17:31 补充如下]
类型
类型 具有内置闪光灯的自动对焦/自动曝光单镜头反光式数码相机
记录媒体 SD存储卡、SDHC存储卡
图像感应器尺寸 22.2×14.8毫米
兼容镜头 佳能EF系列镜头(包括EF-S系列镜头)
(35毫米换算焦距约为镜头焦距的1.6倍)
镜头卡口 佳能EF卡口
图像感应器
类型 高灵敏度、高分辨率、大型单片式CMOS图像感应器
像素 有效像素 约1220万像素
总像素 约1240万像素
长宽比 3:2
色彩滤镜系统 RGB原色滤镜
低通滤镜 位于图像感应器前,固定式
除尘功能 (1)自动清洁感应器
(2)手动清洁感应器
(3)除尘数据添加到拍摄的图像
记录系统
记录格式 相机文件系统设计规则2.0(Design rule for Camera File System 2.0)
图像类型 JPEG、RAW(14位,佳能原创)
RAW+JPEG同时记录 具备
文件大小 (1)大/优:约4.3MB(4272 × 2848像素)
(2)大/普通:约2.2MB(4272 × 2848像素)
(3)中/优:约2.5MB(3088 × 2056像素)
(4)中/普通:约1.3MB(3088 × 2056像素)
(5)小/优:约1.6MB(2256 × 1504像素)
(6)小/普通:约0.8MB(2256 × 1504像素)
(7)RAW:约15.3MB(4272 × 2848像素)
*准确的文件大小取决于拍摄主体、ISO感光度、照片风格等
文件编号 连续编号、自动重设、手动重设
图像处理
色彩空间 sRGB、Adobe RGB
照片风格 标准、人像、风光、中性、可靠设置、单色、用户定义1-3
白平衡 自动、日光、阴影、阴天、钨丝灯、白色荧光灯、闪光灯、用户自定义
色温补偿 白平衡矫正:在±9级间以整级调节
白平衡包围曝光:在±3级间以整级调节
*可选择蓝色/琥珀色或洋红色/绿色偏移
色温信息传输 具备
降噪 长时间曝光降噪功能
高ISO感光度降噪功能
自动图像亮度校正 自动亮度优化
高光色调优先 具备
添加原始图像校验数据 具备(由原始数据安全套装OSK-E3校验)
取景器
类型 眼平五面镜
视野率 垂直/水平方向约95%
放大倍率 约0.87倍(-1 m-1,使用50mm镜头对无限远处对焦)
眼点 约19毫米(自目镜透镜中央起)
内置屈光度调节 -3.0 - +1.0 m-1(屈光度)
对焦屏 固定式、精确磨砂
反光镜 快回式半透明(透光率/反光率:40/60,使用EF600mm f/4L IS USM或更短镜头时无取景器变黑情况)
取景器信息 自动对焦信息(自动对焦点、合焦确认指示灯),曝光信息(快门速度、光圈值、自动曝光锁、曝光量、ISO感光度、曝光警告),闪光信息(闪光灯准备就绪、高速同步、闪光曝光锁、闪光曝光补偿),单色拍摄、白平衡矫正、最大连拍数量、SD存储卡信息
景深预视 使用景深预视按钮启动
自动对焦
类型 TTL辅助影像重合,相位检测
自动对焦点 9个自动对焦点
测光范围 EV -0.5 - 18(23°C/73°F、ISO 100)
对焦模式 单次自动对焦、人工智能伺服自动对焦、人工智能自动对焦、手动对焦(MF)
自动对焦点选择 自动选择、手动选择
所选自动对焦点显示 在取景器中重叠显示,并在液晶监视器上显示
自动对焦辅助光 由内置闪光灯发出的短促连续闪光
有效范围:中央大约4.0米/13.1英尺,四周大约3.5米/11.5英尺
曝光控制
测光模式 35区TTL全开光圈测光 评价测光(可与任何自动对焦点联动)
局部测光(取景器中央约9%的面积)
点测光(取景器中央约4%的面积)
中央重点平均测光
测光范围 EV 1 - 20(23°C/73°F、使用EF50mm f/1.4 USM镜头、ISO 100)
曝光控制 程序自动曝光(全自动、人像、风光、微距、运动、夜景人像、闪光灯关闭、程序),快门优先自动曝光、光圈优先自动曝光、景深优先自动曝光、手动曝光、E-TTL II自动闪光
ISO感光度 (推荐的曝光指示标志) 基本拍摄区模式 在ISO 100-800之间自动设置
创意拍摄区模式 ISO 100-1600(以整级为单位调节)、自动
曝光补偿 手动 ±2级间以1/3或1/2级为单位调节(可与自动包围曝光组合使用)
自动包围曝光 ±2级间以1/3或1/2级为单位调节
自动曝光锁 自动 使用评价测光和单次自动对焦合焦时
手动 通过自动曝光锁按钮
快门
类型 电子控制焦平面快门
快门速度 1/4000至1/60秒、闪光同步速度1/200秒
1/4000至30秒、B门(总快门速度范围。可用范围随拍摄模式各异。)
快门释放 轻触式电磁释放
自拍 10秒或2秒延时,或10秒延时加连拍
遥控 快门线RS-60E3
遥控器RC-1/RC-5
内置闪光灯
类型 可收回,自动弹起式闪光灯
闪光测光 E-TTL II自动闪光
闪光指数 13/43(ISO 100,以米/英尺为单位)
回电时间 约3秒
闪光灯准备就绪指示灯 在取景器中闪光灯准备就绪图标亮起
闪光灯覆盖范围 17mm镜头视角
闪光曝光补偿 ±2级间以1/3或1/2级为单位调节
闪光曝光锁 具备
外接闪光灯
兼容闪光灯 EX系列闪光灯
闪光测光 E-TTL II自动闪光
闪光曝光补偿 ±2级间以1/3或1/2级为单位调节
闪光曝光锁 具备
外接闪光灯设置 闪光灯功能设置,闪光灯自定义功能设置
配合镜头焦距的变焦功能 具备
驱动系统
连拍速度 最大约3.5张/秒(可单拍)
最大一次连拍数量 JPEG(大/优)约53张,RAW约6张,RAW+JPEG(大/优)约4张
*基于2GB SD存储卡、ISO 100和标准照片风格条件下的佳能测试标准
*根据拍摄主体、SD存储卡品牌、图像记录画质等而有所不同
实时显示功能
拍摄模式 (1)实时显示拍摄
(2)遥控实时显示拍摄(适用于已安装EOS Utility的计算机)
对焦 手动对焦
自动对焦(快速模式、实时模式)
测光模式 使用图像感应器进行评价测光
测光范围 EV 0 - 20(23°C/73°F、使用EF50mm f/1.4 USM镜头、ISO 100)
网格线显示 具备
曝光显示 实时显示模拟曝光
液晶监视器
类型 TFT彩色液晶监视器
监视器尺寸 3.0英寸
点数 约23万
视野率 约100%
亮度调节 7级
界面语言 20种(含简体中文)
图像回放
显示格式 单张图像、单张图像+图像记录画质、拍摄信息、柱状图、4张或9张图像索引、放大显示(约1.5倍-10倍)、旋转图像、图像跳转(按1/10/100张图像或拍摄日期跳转)
高光警告 具备(曝光过度的高光区域闪烁)
图像保护与删除
保护 可以保护或不保护单张图像
删除 单张图像、带有勾选标记图像或存储卡中全部图像可以一次性删除(加保护的图像除外)
直接打印
兼容打印机 兼容PictBridge的打印机
可打印图像 兼容相机文件系统设计规则(Design rule for Camera File System)的JPEG图像(可进行DPOF打印)
便捷打印功能 具备
数码打印命令格式
DPOF 兼容1.1版
直接图像传输
兼容图像 JPEG和RAW图像
*仅JPEG图像可以传输作为计算机屏幕上的壁纸
自定义
自定义功能 共13个
注册我的菜单 具备
接口
USB接口 用于计算机通讯和直接打印(高速USB)
视频输出端子 可选择NTSC/PAL
电源
电池 电池LP-E5(一节)
*可以通过交流电适配器套装ACK-E5使用交流电
*用电池盒兼手柄BG-E5时,可以使用AA型电池
电池拍摄能力 [近似拍摄数量]
温度 拍摄条件
不使用闪光灯 50%使用闪光灯
23°C / 73°F 600 500
0°C / 32°F 500 400
*使用充满电的电池LP-E5
*以上数值基于CIPA(相机影像机器工业协会)测试标准
电池电量检测 自动
节电 具备。电源在30秒、1分、2分、4分、8分或15分钟后自动关闭
日期/时间备份电池 内置辅助电池
启动时间 约0.1秒(基于CIPA测试标准)
尺寸和重量
尺寸(宽×高×厚) 128.8×97.5×61.9毫米/5.1×3.8×2.4英寸
重量 约475克/16.8盎司(仅机身)
操作环境
工作温度范围 0°C-40°C/32°F-104°F
工作湿度范围 85%或更小
电池LP-E5
类型 可充电锂电池
额定电压 7.4V DC
电池容量 1080毫安
尺寸(宽×高×厚) 36×14.7×53.1毫米/1.4×0.6×2.1英寸
重量 约50克/1.8盎司(不含保护盖)
电池充电器LC-E5E
兼容电池 电池LP-E5
电源线长度 约2米/6.6英尺
充电时间 约2个小时
输入电压 100-240V AC(50/60 Hz)
输出电压 8.4V DC/700 mA
工作温度范围 0°C-40°C/32°F-104°F
工作湿度范围 85%或更小
尺寸(宽×高×厚) 67×26×87.5毫米/2.6×1.0×3.4英寸
重量 约75克/2.6盎司 450D与400D对比图片 :titter: :titter: :titter:
接受推荐:loveliness:
可套机只配18-55mm is镜头喔 版主评价:
450d 外观结构与过去400d相比细节发生了变化 通过图片分析 我认为佳能加强了这台入门机器的卡口底座强度和棱镜舱强度 是很大的进步 而且密封性方面应该也有所提高
这台机器的配套镜头带有防抖功能 对镜头要求没有达到苛刻的同学 我热情建议购买18-55的套头组合 对于有远摄偷拍爱好的同学 可以考虑多买中长变焦的那个套头
对于有日常摄影爱好的同学 而又时常使用视角接近焦段的同学 版主我推荐价廉物美体积小巧的EF 35mm f/2.0 和EF 17-40mm f/4.0 L USM
以下是佳能镜头相互比较工具 可以设置对比任意镜头之间在任意光圈和焦距的对比
[url]http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=122&Camera=9&Sample=0&FLIComp=4&APIComp=0&LensComp=100&CameraComp=9&SampleComp=0&FLI=0&API=0[/url] [quote]原帖由 [i]ghostqiu[/i] 于 2008-4-25 05:12 PM 发表 [url=http://www.hondafun.net/redirect.php?goto=findpost&pid=171135&ptid=16235][img]http://www.hondafun.net/images/common/back.gif[/img][/url]
:titter: :titter: :titter:
接受推荐:loveliness:
可套机只配18-55mm is镜头喔 [/quote]
不好意思 忘记了 好像是日本才可以多选 可以买配两个镜头的套机 哈哈 [size=5][color=blue]EF 35mm f/2.0 Lens[/color][/size]
这个镜头的特点就是小巧轻便 还具有较好的成像和足够使用的光圈开度 并且价格低廉
它的缺点是没有超音波对焦马达 所以对焦声音略大 不过还在可以接受的范围内
450d机身配合这个镜头 可以轻易塞进日常的包里面 随时拿出来拍摄 而且由于镜头不起眼 不容易引起被拍摄对象的反感 (拿个巨大红圈L头扫街实在太xx了)这个镜头在450d上实际等同焦距为56mm 可以当作标镜使用
拍摄样张请点击:[url=http://www.the-digital-picture.com/Reviews/Sample-Pictures.aspx?Equipment=122&desc=Canon-EF-35mm-f/2.0-Lens-Sample-Pictures]http://www.the-digital-picture.com/Reviews/Sample-Pictures.aspx?Equipment=122&desc=Canon-EF-35mm-f/2.0-Lens-Sample-Pictures[/url]
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[float=left][img]http://www.the-digital-picture.com/Images/Pic/Canon-EF-35mm-f-2.0-Lens.jpg[/img] [/float]
Canon EF 35mm f/2.0 Lens Review The Canon EF 35mm f/2.0 Lens is a [b]tiny, light and inexpensive[/b] Canon lens. It turns out to be a good performer as well making this lens a [b]good value[/b]!.
Build quality on this 35mm prime lens is reasonable. A metal lens mount contributes to the Canon EF 35mm f/2.0 Lens' overall quality.
The focus ring is small, but certainly easier to use than the front-mounted focus ring on the even less-expensive [url=http://www.the-digital-picture.com/Reviews/Canon-EF-50mm-f-1.8-II-Lens-Review.aspx][color=#0000ff]Canon EF 50mm f/1.8 II Lens[/color][/url]. The non-USM autofocus drive motor is noisy (buzzy), but autofocus is reasonably fast. FTM (Full Time Manual) focus is not available.
My Canon EF 35mm f/2.0 Lens tended toward over-exposing on many shots. I don't know if this is a copy-dependant trait or a general trait of this lens.
Depth of field (DOF) at f2.0 is rather shallow if you are close to your subject - accurate focus is critical (unfortunately, I don't find the 35 f/2 to focus as accurately as the better Canon lenses). The short DOF benefit is that you can blur the background nicely. Unfortunately, the bokeh quality on the Canon EF 35mm f/2.0 Lens stopped down is not excellent.
[img]http://www.the-digital-picture.com/Images/Other/Canon-35mm-Bokeh-Sample.jpg[/img]
When stopped down, OOF (Out Of Focus) highlights appear as pentagons due to the 5-blade aperture (as can be seen in the sample above). OOF highlights will be round if you shoot wide open - which is also when highlights will most likely be out of focus in the first place.
Contrary to what some others report from this lens, I found contrast to be slightly lacking on my copy. My Canon EF 35mm f/2.0 Lens shots generally had a very-slightly washed out appearance requiring a boost of saturation/contrast.
[img]http://www.the-digital-picture.com/Images/Other/Canon-Lenses.jpg[/img]
Pictured above from left to right are the [url=http://www.the-digital-picture.com/Reviews/Canon-EF-35mm-f-2.0-Lens-Review.aspx][color=#800080]Canon EF 35mm f/2.0 Lens[/color][/url], [url=http://www.the-digital-picture.com/Reviews/Canon-EF-50mm-f-1.4-USM-Lens-Review.aspx][color=#0000ff]Canon EF 50mm f/1.4 USM Lens[/color][/url], [url=http://www.the-digital-picture.com/Reviews/Canon-EF-35mm-f-1.4-L-USM-Lens-Review.aspx][color=#0000ff]Canon EF 35mm f/1.4 L USM Lens[/color][/url], [url=http://www.the-digital-picture.com/Reviews/Canon-EF-16-35mm-f-2.8-L-USM-Lens-Review.aspx][color=#0000ff]Canon EF 16-35mm f/2.8 L USM Lens[/color][/url] and the [url=http://www.the-digital-picture.com/Reviews/Canon-EF-24-70mm-f-2.8-L-USM-Lens-Review.aspx][color=#0000ff]Canon 24-70mm f/2.8 L USM Lens[/color][/url].
In the center sharpness department, the Canon EF 35mm f/2.0 Lens is quite good at f2.0. Sharpness increases slightly as the aperture is stopped down through f/4 or so. [b]Center sharpness is one of the 35 f/2's strongest points[/b]. However, corner sharpness is really bad (even on a 1.6x FOVCF body through f/5.6 or so).
The Canon EF 35mm f/2.0 Lens exhibits strong vignetting until stopped down to at least f/2.8. The 35 f/2's vignetting at f/2 is similar to the [url=http://www.the-digital-picture.com/Reviews/Canon-EF-35mm-f-1.4-L-USM-Lens-Review.aspx][color=#0000ff]Canon EF 35mm f/1.4 L USM Lens[/color][/url] vignetting at f/1.4. The vignetting will be much less of an issue to 1.6x [url=http://www.the-digital-picture.com/Canon-Lenses/Field-of-View-Crop-Factor.aspx][color=#0000ff]FOVCF[/color][/url] Digital SLR body users. The 35 f/2 scores very well in the distortion department.
I found the Canon EF 35mm f/2.0 Lens to hold its own in the center sharpness comparison with the [url=http://www.the-digital-picture.com/Reviews/Canon-EF-35mm-f-1.4-L-USM-Lens-Review.aspx][color=#0000ff]Canon EF 35mm f/1.4 L USM Lens[/color][/url], however the 35 L was far better in the corners. The f/1.4 produced a smoother image and had slightly better color than the f/2.
At similar apertures, the Canon EF 35mm f/2.0 Lens is similay sharp in the center to my [url=http://www.the-digital-picture.com/Reviews/Canon-EF-24-70mm-f-2.8-L-USM-Lens-Review.aspx][color=#0000ff]Canon EF 24-70mm f/2.8 L USM Lens[/color][/url] at 35mm. However, the 24-70 L was much sharper in the corners even on a 1.6x FOVCF body.
At similar apertures, the Canon EF 35mm f/2.0 Lens was clearly sharper than my [url=http://www.the-digital-picture.com/Reviews/Canon-EF-16-35mm-f-2.8-L-USM-Lens-Review.aspx][color=#0000ff]Canon EF 16-35mm f/2.8 L USM Lens[/color][/url] at 35mm. The difference narrowed to very little by f/4.
The minimum focus distance of the Canon EF 35mm f/2.0 Lens is .8'. While not a 1:1 macro lens, the Canon 35 f2.0 focuses quite closely. At this distance, [b]flower and plant[/b] photography is a use for this lens. Keep in mind that you need a pleasing wide background as 35mm will include a lot of it in your shot.
The Canon EF 35mm f/2.0 Lens can be useful for [b]landscape photography[/b] if 35mm is the focal length that is right for you.
Full body portrait photography is another good use for this lens. I don't recommend using a 35mm focal length lens for much closer portrait work (such as head shots) because body features (including noses) tend to get exaggerated. That said, this lens can be ideal for loosely cropped [b]full body portraits[/b] - especially in limited space situations.
[b]Low available light[/b] portraits and other similar casual and formal shots are another of the situations the Canon EF 35mm f/2.0 Lens' handles well. Shooting with a handheld camera indoors after dark is doable with this lens. The relatively wide focal length paired with a fast f/2.0 aperture makes the Canon EF 35mm f/2.0 Lens a good handheld indoor available light (without flash) lens.
If you decide to use a flash, the Canon EF 35mm f/2.0 Lens will not block an onboard camera body's flash.
Use the Canon EF 35mm f/2.0 Lens to capture the family gathering or your child's [b]birthday party[/b]. The 35 f2 is useful at [b]church or school[/b].
With a very low purchase price, the Canon EF 35mm f/2.0 Lens could make a nice [b]affordable general-purpose lens[/b]. When mounted on a Canon camera with a 1.3x or 1.6x [url=http://www.the-digital-picture.com/Canon-Lenses/Field-of-View-Crop-Factor.aspx][color=#0000ff]FOVCF[/color][/url], the result is near the classic normal 50mm lens - a lens that many people have used exclusively for years.
The Canon EF 35mm f/2.0 Lens is a nice lens - [b]Sharpness, size, weight and price[/b] are its best features. I don't recommend this lens for full frame body users.
[[i] 本帖最后由 一休 于 2008-4-25 05:26 PM 编辑 [/i]] [size=5][color=blue]EF 17-40mm f/4.0 L USM[/color][/size]
这是一个带有L标记的和显眼红圈的佳能专业系列镜头 但是它是针对非全副的感应器设计的 所以可以想象它的边缘成像是不被设计师重视的 因为在象450d这类非全副相机上 完全不能看到那部分图像 这个特点也说明了 如果你购买它 还想要在今后用到全副机器上 那么应该放弃这个选择 这个镜头的对象是一次购买一次使用到底的同学 如同其它L系列镜头一样 这个镜头的成像没什么特别需要说明的 它具有超越套头很远的实力 价格也相对较高 不过并没有高到其它L镜头那样的水平 还在可承受的范围里 如果你计划购买这个镜头 那么单独购买450d机身就可以了 这个镜头的焦段和套头有互相覆盖 不必拥有两个 除非你有时要把镜头借朋友 那把狗头借他好了
这个镜头在450d上实际焦距等同于 27mm-64mm 大约覆盖了广角到标镜的区域 非常实用(版主我是非长焦爱好者)
购买这个镜头的同学 或许就要准备好一个专用的包来放置这个镜头和相机 因为这个镜头总体来说尺寸还是比较大的
观看样片请点击这里(晚餐前 对L头的画质请不要过度期待):[url=http://www.the-digital-picture.com/Reviews/Sample-Pictures.aspx?Equipment=100&desc=Canon-EF-17-40mm-f/4.0-L-USM-Lens-Sample-Pictures]http://www.the-digital-picture.com/Reviews/Sample-Pictures.aspx?Equipment=100&desc=Canon-EF-17-40mm-f/4.0-L-USM-Lens-Sample-Pictures[/url]
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[float=left][img]http://www.the-digital-picture.com/Images/Pic/Canon-EF-17-40mm-f-4.0-L-USM-Lens.jpg[/img] [/float]
Canon EF 17-40mm f/4.0 L USM Lens Review Because it is a [b]very high quality but moderately-priced[/b] ultra wide angle zoom lens, the Canon EF 17-40mm f/4.0 L USM Lens is one of Canon's [b]best selling[/b] lenses.
The 17-40 f/4 L fills out the bottom focal length range of [url=http://www.the-digital-picture.com/Canon-Lenses/Canon-L-Lens-Series.aspx][color=#0000ff]Canon's f/4 L zoom lens series[/color][/url]. It is the [b]lightest L lens[/b] currently made (1.1 lbs / 475g) and is the [b]smallest L zoom lens[/b] currently produced (3.3" x 3.8" / 83.5mm x 96.8mm - DxL). As you expect from an "L" lens, the 17-40's build [b]quality is very high[/b]. This is an easy-to-take-with-you lens - It handles very nicely as well.
Utilizing Ring USM, the Canon EF 17-40mm f/4.0 L USM Lens [b]focuses very fast[/b], [b]quietly[/b] and [b]accurately[/b]. The focus and zoom rings are nicely sized, turn smoothly and are nicely damped. This lens does not extend with a very small exception - the objective end lens elements move in/out slightly inside the lens barrel during focusing. The movement is 100% behind the filter threads. If you have a filter installed, you will have no external movement. Since the filter attaches to the fixed lens barrel - the filter also does not rotate. [url=http://www.the-digital-picture.com/Reviews/B+W-77mm-MRC-Slim-Circular-Polarizer-Filter-Review.aspx][color=#0000ff]Circular Polarizing Filter[/color][/url] and split neutral density filter users will care about this. The common 77mm filter threads make sharing filters with many of Canon's complementing lenses easy. The Canon EF 17-40mm f/4.0 L USM Lens is [b]weather-sealed[/b] but requires a [url=http://www.the-digital-picture.com/Reviews/B+W-UV-Filter.aspx][color=#0000ff]UV Filter[/color][/url] to complete the sealing.
Wide open center of the frame sharpness ranges from great on the wide end to good on the long end. Corner sharpness is the reverse - ranging from good at 40mm to soft in the full frame corners at 17mm. Stopping the 17-40 L down to f/5.6 levels sharpness to very good across the frame. Both of the 17-40 L lenses I've owned have yielded better sharpness at short distances than at long distances.
The Canon EF 17-40mm f/4.0 L USM Lens resists flare very well. Colors and contrast are very good. Expect some CA in the full frame corners below 24mm. Distortion ranges from moderately strong barrel distortion at 17mm to mild pincushion at 40mm with 24mm being the approximate point of no distortion. As usual, closer distances resulted in stronger distortion and significantly less distortion will be noticeable on 1.6x [url=http://www.the-digital-picture.com/Canon-Lenses/Field-of-View-Crop-Factor.aspx][color=#0000ff]FOVCF[/color][/url] bodies. You will likely notice the barrel distortion in the full-frame 17mm ISO 12233 resolution chart sample crops.
A 7-blade circular aperture delivers excellent OOF (Out of Focus) blur quality. But, unless you have a close subject and a wide aperture, do not expect a diffusely blurred background with this ultra-wide angle focal length range and moderate maximum aperture opening.
Vignetting will be a non-issue when the 17-40 L is mounted on 1.6x FOVCF bodies. Full frame body users will see vignetting ranging from very strong at 17mm f/4 to not too bad at 40mm f/4 and 17mm f/8. A [url=http://www.the-digital-picture.com/Reviews/B+W-UV-Filter.aspx][color=#0000ff]standard thickness UV filter[/color][/url] shows little or no additional vignetting regardless of the camera body being used. However, you will likely want a [url=http://www.the-digital-picture.com/Reviews/B+W-77mm-MRC-Slim-Circular-Polarizer-Filter-Review.aspx][color=#0000ff]slim circular polarizing filter[/color][/url].
Although not as fast as the [url=http://www.the-digital-picture.com/Reviews/Canon-EF-16-35mm-f-2.8-L-USM-Lens-Review.aspx][color=#0000ff]Canon EF 16-35mm f/2.8 L lens[/color][/url], the Canon EF 17-40mm f/4.0 L USM Lens is a comparable lens in terms of image quality. The biggest difference between the 17-40 and the similar-focal-length-covering 16-36 L is price. The 17-40 is much less expensive - practically half the price. But of course, the 16-35 is able to let in twice as much light.
[img]http://www.the-digital-picture.com/Images/Other/Canon-General-Purpose-Zoom-Lenses.jpg[/img]
The above size comparison photo includes from left to right the [url=http://www.the-digital-picture.com/Reviews/Canon-EF-17-40mm-f-4.0-L-USM-Lens-Review.aspx][color=#800080]Canon EF 17-40mm f/4 L USM Lens[/color][/url], [url=http://www.the-digital-picture.com/Reviews/Canon-EF-24-105mm-f-4-L-IS-USM-Lens-Review.aspx][color=#0000ff]Canon EF 24-105mm f/4 L IS USM Lens[/color][/url], [url=http://www.the-digital-picture.com/Reviews/Canon-EF-S-17-55mm-f-2.8-IS-USM-Lens-Review.aspx][color=#0000ff]Canon EF-S 17-55mm f/2.8 IS USM Lens[/color][/url] and [url=http://www.the-digital-picture.com/Reviews/Canon-EF-24-70mm-f-2.8-L-USM-Lens-Review.aspx][color=#0000ff]Canon EF 24-70mm f/2.8 L USM Lens[/color][/url]. The same lenses are show fully extended below.
[img]http://www.the-digital-picture.com/Images/Other/Canon-General-Purpose-Zoom-Lenses-Extended.jpg[/img]
At its closest-focusing-distance of .92' (.28m), the Canon EF 17-40mm f/4.0 L USM Lens delivers its maximum magnification of .24x at 40mm (a decent value). Zooming out to 17mm at this distance will yield a dramatic perspective. Adding [url=http://www.the-digital-picture.com/Reviews/Canon-EF-25mm-Extension-Tube-II-Review.aspx][color=#0000ff]extension tubes[/color][/url] to the equation shortens the closest focusing distance and delivers significant (macro-realm) .83x and 1.02x maximum magnifications for 12mm and 25mm tubes respectively.
The Canon EF 17-40mm f/4.0 L USM Lens ships with a Canon EW-83E lens hood and a Canon LP1319 soft lens pouch. The shape of the hood (very wide and very short) makes one question whether it actually helps. It does almost nothing for lens protection - and probably nothing for image quality when used on a 1.6x FOVCF body. It also makes storage inefficient. With the hood removed, the 17-40 easily fits in a relatively small [url=http://www.the-digital-picture.com/Reviews/Lowepro-Lens-Case-1W-Review.aspx][color=#0000ff]Lowepro Lens Case 1W[/color][/url]. To accommodate the diameter of the hood installed, the 17-40 requires a relatively large [url=http://www.the-digital-picture.com/Reviews/Lowepro-Lens-Case-Review.aspx][color=#0000ff]Lowepro Lens Case 4S[/color][/url].
Since 1.6x camera bodies do not need all of the image this lens presents, a more-light-reducing lens hood can be used. Friends of the site have reported that the [url=http://www.the-digital-picture.com/Reviews/Canon-EF-24mm-f-1.4-L-USM-Lens-Review.aspx][color=#0000ff]Canon EF 24mm f/1.4 L Lens'[/color][/url] EW-83DII lens hood and the [url=http://www.the-digital-picture.com/Reviews/Canon-EF-24-105mm-f-4-L-IS-USM-Lens-Review.aspx][color=#0000ff]Canon EF 24-105mm f/4 L IS Lens'[/color][/url] EW-83H work well as alternatives for these bodies. I tested the EW-83J from the [url=http://www.the-digital-picture.com/Reviews/Canon-EF-S-17-55mm-f-2.8-IS-USM-Lens-Review.aspx][color=#0000ff]Canon EF-S 17-55mm f/2.8 IS Lens[/color][/url] and it seems to work fine on the 17-40. It fits and does not cause vignetting at 17mm and f/4. It looks a lot better as well. :)
[img]http://www.the-digital-picture.com/Images/Other/Canon-Wide-Angle-L-Zoom-Lenses.jpg[/img]
Shown above are the [url=http://www.the-digital-picture.com/Reviews/Canon-EF-17-40mm-f-4.0-L-USM-Lens-Review.aspx][color=#800080]Canon EF 17-40mm f/4 L USM Lens[/color][/url], [url=http://www.the-digital-picture.com/Reviews/Canon-EF-16-35mm-f-2.8-L-USM-Lens-Review.aspx][color=#0000ff]Canon EF 16-35mm f/2.8 L USM Lens[/color][/url], [url=http://www.the-digital-picture.com/Reviews/Canon-EF-16-35mm-f-2.8-L-II-USM-Lens-Review.aspx][color=#0000ff]Canon EF 16-35mm f/2.8 L II USM Lens[/color][/url] and [url=http://www.the-digital-picture.com/Reviews/Canon-EF-24-70mm-f-2.8-L-USM-Lens-Review.aspx][color=#0000ff]Canon EF 24-70mm f/2.8 L USM Lens[/color][/url]. The same lenses minus the 24-70 L are shown below with their included lens hoods.
[img]http://www.the-digital-picture.com/Images/Other/Canon-Wide-Angle-L-Zoom-Lenses-With-Lens-Hoods.jpg[/img]
Be sure to read my [url=http://www.the-digital-picture.com/Reviews/Canon-EF-16-35mm-f-2.8-L-II-USM-Lens-Review.aspx][color=#0000ff]Canon EF 16-35mm f/2.8 L II USM lens review[/color][/url] to determine which of these two Canon Ultra Wide Angle lenses is right for you. In brief - If you are going to shoot primarily with narrow apertures or your budget is restricted, the decision is easy - get the Canon EF 17-40mm f/4.0 L USM Lens. If you need to shoot in low light conditions such as indoors without a flash or tripod, then the 16-35 L II is for you (you need at least f/2.8 - or image stabilization for motionless subjects). If you do not need full-frame compatibility, rugged build quality or environmental sealing, the newer [url=http://www.the-digital-picture.com/Reviews/Canon-EF-S-17-55mm-f-2.8-IS-USM-Lens-Review.aspx][color=#0000ff]Canon EF-S 17-55mm f/2.8 IS USM[/color][/url] is another great solution.
I frequently recommend the Canon EF 17-40mm f/4.0 L USM Lens as a [url=http://www.the-digital-picture.com/Canon-Lenses/Canon-General-Purpose-Lens.aspx][color=#0000ff]general purpose lens[/color][/url] for those with a 1.6x [url=http://www.the-digital-picture.com/Canon-Lenses/Field-of-View-Crop-Factor.aspx][color=#0000ff]FOVCF (field of view crop factor)[/color][/url] camera that want the [b]best image quality for a reasonable price[/b]. The focal length range of this lens is not big, but on a 1.6x body, the full-frame equivalent 27.2-64mm lens can handle many general purpose needs. Good full-frame compatibility and performance make the 17-40 L an especially good lens for those thinking of upgrading to such a body in the future.
[b]Wide landscape photography[/b] is a very popular use for this lens Use wide angles to [b]emphasize an object in the foreground[/b] against an attractive (and mostly in-focus) background. Or use it to simply take in a very wide field of view. Shoot your garden landscape, the lake, large mountains ...
[b]Architecture[/b] and real estate photography often have large subjects that require wide angle lenses. These are more good uses for the Canon EF 17-40mm f/4.0 L USM Lens. You may need to remove the barrel distortion from 17mm shots during post-processing.
Other situations that require you to work in a tight space may be right for the 17-40 L.
Although the Canon EF 17-40mm f/4.0 L USM Lens can be a [b]good people lens[/b], it is not a good short-distance people lens. A head shot from this lens will emphasize the subject's nose more than the subject will want. The 17-40mm focal length range is great for [b]group pictures, environmental portraits[/b] and [b]full body pictures[/b]. Stand back and make a person part of a wide landscape shot. If tighter portraits are your interest, look for a lens that gives you at least an 85mm - 135mm equivalent focal length. The captures of your important subject will be more pleasing.
Of course, that closeup wide angle portrait look is fun to use sometimes. Just don't overdo it.
As with any other general purpose/ultra wide angle lens, this lens has far more uses than I am going to think of. But if you want a [b]great wide angle lens[/b] for an [b]attractive price[/b], the Canon EF 17-40mm f/4.0 L USM Lens is a [b]very good choice[/b].
[[i] 本帖最后由 一休 于 2008-4-25 06:11 PM 编辑 [/i]] 打算5 。1过香港买[b][color=#006699]Canon [/color][/b] S5(家用),这台机子怎么样??本人对摄影一敲不通。。。。。 不错的方便套头,目前深陷尼潭了。 不知一休兄对A350有什么看法???? [quote]原帖由 [i]阿占[/i] 于 2008-4-25 06:25 PM 发表 [url=http://www.hondafun.net/redirect.php?goto=findpost&pid=171152&ptid=16235][img]http://www.hondafun.net/images/common/back.gif[/img][/url]
打算5 。1过香港买Canon S5(家用),这台机子怎么样??本人对摄影一敲不通。。。。。 [/quote]
S5是大跨度变焦镜头的相机 如果你很需要高倍变焦 那么选择它很方便 但是大跨度变焦镜头的成像一定是不能每个焦距都兼顾的 会有一些焦距成像较弱
如果只是家用 我推荐不如买CANON的G9
G9的变焦跨度也很充分 足够日常各种条件使用 各方面性能都很优秀 [quote]原帖由 [i]大宝[/i] 于 2008-4-25 06:41 PM 发表 [url=http://www.hondafun.net/redirect.php?goto=findpost&pid=171155&ptid=16235][img]http://www.hondafun.net/images/common/back.gif[/img][/url]
不错的方便套头,目前深陷尼潭了。 [/quote]
NIKON低端机器有点过度简化 镜头群对初学者来说有点难度 :lol:
所以这里先推荐最方便的CANON [quote]原帖由 [i]dgczj[/i] 于 2008-4-26 12:12 AM 发表 [url=http://www.hondafun.net/redirect.php?goto=findpost&pid=171245&ptid=16235][img]http://www.hondafun.net/images/common/back.gif[/img][/url]
不知一休兄对A350有什么看法???? [/quote]
a350是sony很棒的一台低端相机 它很实用的特色有翻转LCD显示屏 可以模拟双镜头机器的地位观测拍摄 还具有机身防抖
如果购买套机来拍摄 也是很好的选择
但是如果有配合其它镜头的想法 那么它能够在合理价格选择的镜头 有之前的蔡丝Vario-Sonnar T* DT16-80mm F3.5-4.5 ZA 现在有一支新品蔡丝(绝对天价)的Vario-Sonnar T* 24-70mm F2.8 ZA SSM
[table=98%,#424242][tr][td=1,1,249][align=center][img=157,222]http://www.sony.com.cn/products/dslr/images/lens_images/l1_p1.jpg[/img][img=61,79]http://www.sony.com.cn/products/dslr/images/lens_images/zeisslogo-2.gif[/img][/align][/td][td=1,1,287][table=80%][tr][td=1,1,254][img=9,14]http://www.sony.com.cn/products/dslr/images/arrow.gif[/img] [color=#ff6600]SAL1680Z[/color]
Vario-Sonnar T* DT16-80mm F3.5-4.5 ZA[/td][/tr][tr][td][b]5倍标准变焦卡尔·蔡司镜头。[/b][/td][/tr][tr][td]覆盖了从24mm的超级广角到120mm的远摄(35mm等效)。使用在紧凑,轻巧易携的数码单反上,可确保最佳的表现力。适用于APS规格的数码单反机。[/td][/tr][tr][td]
*专为APS规格DSLR设计[/td][/tr][/table][/td][/tr][/table]
[table=98%,#424242][tr][td=1,1,244][align=right][img=157,222]http://www.sony.com.cn/products/dslr/images/lens_images/sal2470z_1.jpg[/img][img=61,79]http://www.sony.com.cn/products/dslr/images/lens_images/zeisslogo-2.gif[/img][/align][/td][td=1,1,292][table=83%][tr][td=1,1,266][img=9,14]http://www.sony.com.cn/products/dslr/images/arrow.gif[/img] [color=#ff6600]SAL2470Z[/color]
Vario-Sonnar T*
24-70mm F2.8 ZA SSM[/td][/tr][tr][td]高性能,大光圈,牢固设计[/td][/tr][/table][/td][/tr][/table]
相对于佳能450d来说 我实际看各处的样片觉得450d的色彩诠释这次做的很中性 另外评测中都显示它在高ISO感光度下噪声点控制优良 夜景拍摄会很有利 加上佳能多彩的镜头群 所以我个人还是推荐佳能450d
[[i] 本帖最后由 一休 于 2008-4-26 01:43 AM 编辑 [/i]] 我知道SONY的镜头选择是没有CANON多,我看中有翻转LCD显示屏,有机身防抖,D80呢??? [quote]原帖由 [i]dgczj[/i] 于 2008-4-26 11:36 AM 发表 [url=http://www.hondafun.net/redirect.php?goto=findpost&pid=171324&ptid=16235][img]http://www.hondafun.net/images/common/back.gif[/img][/url]
我知道SONY的镜头选择是没有CANON多,我看中有翻转LCD显示屏,有机身防抖,D80呢??? [/quote]
D80是比这些高端的机器 肯定性能比这些好一些了 NIKON的镜头选择也是较佳能不便的
我认为在镜头群方面 佳能的便利性暂时领先 选择相机实际上是要从自己需要用的镜头先确定 再反过来选择机身 一休兄450D机身+适马18-200mm F3.5-F6.3 DC 镜头这个一镜走天下,你认为如何??? [quote]原帖由 [i]dgczj[/i] 于 2008-4-26 01:20 PM 发表 [url=http://www.hondafun.net/redirect.php?goto=findpost&pid=171347&ptid=16235][img]http://www.hondafun.net/images/common/back.gif[/img][/url]
一休兄450D机身+适马18-200mm F3.5-F6.3 DC 镜头这个一镜走天下,你认为如何??? [/quote]
这个镜头很超值 但是还是这个问题 大跨度变焦成像都不够完美 另外适马镜头制造品质比佳能的差一些 要好好保护 [quote]原帖由 [i]dgczj[/i] 于 2008-4-26 13:20 发表 [url=http://www.hondafun.net/redirect.php?goto=findpost&pid=171347&ptid=16235][img]http://www.hondafun.net/images/common/back.gif[/img][/url]
一休兄450D机身+适马18-200mm F3.5-F6.3 DC 镜头这个一镜走天下,你认为如何??? [/quote]
其实画质最好的,当数制作质量好的定焦镜头,因为结构简单,不需要太多镜片组。许多名品定焦镜头的价格都是天价,但就是变焦基本要靠走来实现,不是很便利。我有一个广角定焦机,画质确实很棒。因此定焦机也被许多专业摄影师用来作为扫街利器,或者单反的副机使用。 [quote]原帖由 [i]邪魔[/i] 于 2008-5-13 09:39 AM 发表 [url=http://www.hondafun.net/redirect.php?goto=findpost&pid=176157&ptid=16235][img]http://www.hondafun.net/images/common/back.gif[/img][/url]
其实画质最好的,当数制作质量好的定焦镜头,因为结构简单,不需要太多镜片组。许多名品定焦镜头的价格都是天价,但就是变焦基本要靠走来实现,不是很便利。我有一个广角定焦机,画质确实很棒。因此定焦机也被 ... [/quote]
DP1吗???好贵啊:mad:
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