呢d資料係乘左1.5未?

2006-11-06 8:25 pm
例如:
http://www.fotop.net/yushin/hocccon06/IMG_5491

呢幅相下邊寫d資料:18mm係乘左1.5未架?




相片來源:suzuki production

回答 (2)

2006-11-07 7:18 pm
✔ 最佳答案
那位攝影者用的是 CANON,CANON 最普及的幾部DSLR,焦距是 X 1.6 的。
那位拍攝者用的是30D,當然也是 X 1.6

據資料看,拍攝時用了 18MM,即是傳統菲林機拍出來的 29MM
2006-11-08 1:36 am
If the EXIF meta data contain key like "35mm focal length" than sure it is multiply with the crop factor. However if it is not, you have to guess it.

You can guess by if the focal length is standard or not, say if it using 28mm len than the focal length value with crop factor is 42mm, and for 18mm lens then the focal length value with crop factor is 27mm. However, usually there is no len like 42mm or 27mm. So you can guess that from the value match standard or not.


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