re:我使用的奥林巴斯E系统数码单反相机所...
我使用的<br>奥林巴斯E系统数码单反相机所采用的<br>
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CCD尺寸大小为“17.3mm×13mm”（4/3规格）。<br>
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行业里普遍使用的CCD靶面尺寸<br>
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(1)l inch 靶面尺寸为宽12.7mmX高9.6mm,对角线16mm<br>
(2)2/3inch靶面尺寸为宽8.8mmX高6.6mm,对角线11mm<br>
(3)1/2inch靶面尺寸为宽6.4mmX高4.8mm,对角线8mm<br>
(4)1/3inch靶面尺寸为宽4.8mmX高3.6mm,对角线6mm<br>
(5)1/4inch靶面尺寸为宽3.2mmX高2.4mm,对角线4mm<br>
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我们知道同一枚镜头其他条件不变,当镜头焦距(物焦距)不变,靶面越小,像场(视角\视野)越小,但相对同样被摄体可以在更远的距离上获得近物距上一样的占有的分辨空间面积~~~~~~~~<br>
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焦距经验换算可以使用相似三角形比例关系~~~~<br>
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下面是我使用50~200mm变焦镜头,拍摄距离在450米左右,调焦到130mm<br>
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<IMG onmouseover="javascript:if(this.width>520)this.width=520;" src="../leadbbsfile/fileType/jpg.gif" onload="javascript:if(this.width>520)this.width=520;" align=absmiddle border=0>此主题相关图片<br>
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re:[img]../images/fil...
<br><IMG onmouseover="javascript:if(this.width>520)this.width=520;" src="../leadbbsfile/fileType/jpg.gif" onload="javascript:if(this.width>520)this.width=520;" align=absmiddle border=0>此主题相关图片<br>
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re:Lens Line Up...
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Lens Line Up --------------- HIGH GRADE series ED 50-200mm F2.8-3.5 14-54mm F2.8-3.5 11-22mm F2.8-3.5 ED 50mm F2.0 Macro ED 8mm F3.5 Fisheye <br>
These high-performance lens series have been developed for the top level brightness, close-up shooting capability and sharpness in the class. <br>
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<font color="red">ED 50-200mm F2.8-3.5</font><br>
High performance super-telephoto zoom lens. It is equivalent to 100-400mm on a 35mm camera. It is suitable for from medium-telephoto for portrait and snap shots to super-telephoto area for landscape and sport photography. The F2.8-3.5 brightness makes it ideal for low-light situations or fast shutter speeds.<br>
Luxurious three ED lenses are used to greatly reduce chromatic aberrations to give the high image quality with high-resolution and good contrast.<br><br>
<br>Compatibility List Firmware updated <br><br>
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<br>The following picture(s) is/are thumbnail(s) of the image(s).<br>
To see the original image, please click on each thumbnail. <br><br>
<br><br>Exposure mode : Aperture priority AE <br>
Recording format : TIFF <br>
Image size : 2560 x 1920 <br>
File size : 2.64MB <br>
Shutter speed : 1/125sec <br>
Aperture value : F8 <br>
ISO sensitivity : 100 <br>
White balance : AUTO <br>
Camera : E-1 <br><br>
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* The JPEG image (maximum quality) is converted from TIFF image, by using Adobe Photoshop.<br>
<br><br>Exposure mode : Programme <br>
Recording format : JPEG <br>
Image size : 3264 x 2448 <br>
File size : 4.60MB <br>
Shutter speed : 1/160sec <br>
Aperture value : F2.8 <br>
ISO sensitivity : 100 <br>
White balance : 5300K <br>
Camera : E-500 <br><br>
<br><br>Exposure mode : Programme <br>
Recording format : JPEG <br>
Image size : 3264 x 2448 <br>
File size : 5.23MB <br>
Shutter speed : 1/640sec <br>
Aperture value : F6.3 <br>
ISO sensitivity : 100 <br>
White balance : 5300K <br>
Camera : E-500 <br><br>
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*Note that the images on this site are for personal enjoyment only.<br>
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WIDE : 50mm | MIDDLE : 100mm | TELE : 200mm <br>
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1.2 2.0 3.0 5.0 inf. <br>2.8 1.184~<br>
1.216 1.948~<br>
2.055 2.875~<br>
3.138 4.639~<br>
5.424 58.267~<br>
inf. <br>
4 1.178~<br>
1.223 1.927~<br>
2.079 2.824~<br>
3.201 4.500~<br>
5.630 40.826~<br>
inf. <br>
5.6 1.169~<br>
1.233 1.898~<br>
2.114 2.757~<br>
3.292 4.322~<br>
5.941 28.910~<br>
inf. <br>
8 1.157~<br>
1.247 1.859~<br>
2.166 2.669~<br>
3.432 4.093~<br>
6.447 20.484~<br>
inf. <br>
11 1.140~<br>
1.268 1.807~<br>
2.244 2.553~<br>
3.651 3.810~<br>
7.335 14.526~<br>
inf. <br>
16 1.117~<br>
1.299 1.738~<br>
2.364 2.406~<br>
4.016 3.472~<br>
9.122 10.314~<br>
inf. <br>
22 1.086~<br>
1.345 1.650~<br>
2.561 2.226~<br>
4.686 3.088~<br>
13.989 7.335~<br>
inf. <br>
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WIDE : 50mm | MIDDLE : 100mm | TELE : 200mm <br>
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1.2 2.0 3.0 5.0 inf. <br>3.2 1.196~<br>
1.204 1.985~<br>
2.015 2.964~<br>
3.037 4.893~<br>
5.112 206.090~<br>
inf. <br>
4 1.194~<br>
1.206 1.980~<br>
2.021 2.950~<br>
3.051 4.854~<br>
5.155 150.686~<br>
inf. <br>
5.6 1.192~<br>
1.208 1.972~<br>
2.029 2.930~<br>
3.073 4.796~<br>
5.222 106.576~<br>
inf. <br>
8 1.188~<br>
1.212 1.960~<br>
2.042 2.903~<br>
3.104 4.717~<br>
5.320 75.400~<br>
inf. <br>
11 1.183~<br>
1.217 1.944~<br>
2.059 2.864~<br>
3.150 4.609~<br>
5.465 53.349~<br>
inf. <br>
16 1.177~<br>
1.224 1.922~<br>
2.085 2.812~<br>
3.217 4.465~<br>
5.685 37.757~<br>
inf. <br>
22 1.167~<br>
1.235 1.891~<br>
2.123 2.741~<br>
3.316 4.276~<br>
6.029 26.731~<br>
inf. <br>
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WIDE : 50mm | MIDDLE : 100mm | TELE : 200mm <br>
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0.9 2.0 3.0 5.0 inf. <br>3.5 1.199~<br>
1.201 1.995~<br>
2.005 2.989~<br>
3.011 4.967~<br>
5.034 678.581~<br>
inf. <br>
4 1.199~<
re:昨晚在家玩了一会相机，才发现：脚架不见了...
昨晚在家玩了一会相机，才发现：脚架不见了~~re:黎叟真是高材生小弟佩服的五体投地，不...
黎叟真是高材生<br>小弟佩服的五体投地，不知你在何处高就？真想去拜访下你～～<br>
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