What is a 135毫米数码单反? 25x16.7mm, 24x36mm?

"135毫米really is a 老古董concept.
25.1x16.7mm (APS-C) count as 135毫米? How about 24x36mm (FX)? I can’t see why not 48x36mm,67x48mm, 90x67mm, 120x90mm… Since there is no physical film, size not the limitation anymore.

If I re-design Nikon/Canon, First will get rid of all these filter from the sensor (IR,AA…) and make a drop-in filter then seal the camera.(you have option of UV camera, IR camera…) Second, make a exchangeable back. Let’s say 24x36mm…240x360mm?

所有跟帖： 

• 镜头前置滤镜M8就干过，被人骂得要死。可变尺寸后背？ -U96- ♂ (40 bytes) () 07/13/2009 postreply 06:31:53

• Sorry, not镜头前置滤镜. It's body 滤镜. -WayCool- ♂ (142 bytes) () 07/13/2009 postreply 06:38:23

• Sigma和Sony828机身有此设计。要是有拍IR就真方便了。 -U96- ♂ (110 bytes) () 07/13/2009 postreply 06:42:47

• Drop-in filter must behind mirror.No one dose this yet. -WayCool- ♂ (0 bytes) () 07/13/2009 postreply 07:00:59

• 怎么老想着把机身越做越大捏，哈 -用户名被占用了- ♂ (0 bytes) () 07/13/2009 postreply 07:36:45

• What do you think? 机身 smaller than sensor? -waycool- ♂ (0 bytes) () 07/13/2009 postreply 10:33:19

• Also, w/exchangeable back,you don't need wide angle any more -WayCool- ♂ (73 bytes) () 07/13/2009 postreply 06:57:31

• 考虑过孔径和象场吗？ -建筑工- ♂ (0 bytes) () 07/13/2009 postreply 07:14:30

• 估计没有。而且现代镜头都为特定sensor尺寸优化了，改变尺寸性能差很多 -用户名被占用了- ♂ (0 bytes) () 07/13/2009 postreply 07:34:30

• 镜头估计快有水桶粗 -云漫- ♂ (0 bytes) () 07/13/2009 postreply 08:36:17