Yes, Bob's gone bonkers again and wants to know why the lens is at the front of the camera.
Seriously, Sigma are certainly to be applauded for fitting an APS-C sized sensor into their DP1 compact camera (see Gordon's review
) but I was struck by two images:
It would appear that the aperture of the lens is less than the depth of the camera with the lens retracted. My assumption is that Sigma chose to use a prime lens, rather than a zoom, because of the difficulty of getting one capable of servicing the APS-C sensor retracted into the camera when it is switched off.
This isn't something specific to Sigma, so I am left wondering whether it wouldn't make more sense for the larger compact cameras to have the lens on one of the narrow faces. Presumably it wouldn't need to be retractable and all zoom and focussing could be achieved by moving lens elements already within the body. Again, for the larger compact cameras there would also be room to fit an APS-C sized sensor across the camera body as well. The only drawback I can see, and maybe it's a serious one, is that without an optical viewfinder the LCD would have to be flipped out to allow a shot to be framed but that action could be turned into an on/off switch.
What might it look like? Well, there's the Sony HDR-TG3E camcorder which measures 33 x 119 x 63.5mm and 283g to indicate what I mean.
So, could one fit a bigger lens and
an APS-C sensor into this form factor? If yes, then why hasn't it happened? Maybe the fact that it hasn't means you can't. I may not be bonkers (you decide) but I'm certainly confused
P.S. @ Gordon
I've just noticed that the Sony HDR-TG3E is also a 4.0 megapixel still camera. Shouldn't CameraLabs be reviewing this return to sanity?
EDIT: Updated the link behind the picture of the HDR-TG3E