No matter how good a SCMP 50mm lens may be, it isn't designed for a sensor that small. I doubt that it's resolving power is good enough to look sharp at any reasonably large aperture, before diffraction begins to steal resolution.

On 6/23/2011 4:06 PM, Steven Desjardins wrote:
Fotodiox might be working on the adaptor as we speak.  50 mm K mount
lenses are dirt cheap and would pack 12 MP into a 275 FOV, if my math
is correct.

On Thu, Jun 23, 2011 at 4:01 PM, Darren Addy<pixelsmi...@gmail.com>  wrote:
Part of my reply below was just WRONG.
The 35mm equiv. is not printed on the front of the lens. That was the
filter size.
My basic multiplication tables have failed me once again.

Still, the descriptions refer to the 35mm equiv. and Pentax and
reviews all note the 35mm equiv. and crop factor (doubtless for the
reasons I gave).

Darren Addy
Kearney, Nebraska

On Thu, Jun 23, 2011 at 2:45 PM, Darren Addy<pixelsmi...@gmail.com>  wrote:
On Thu, Jun 23, 2011 at 11:54 AM, John Sessoms<jsessoms...@nc.rr.com>  wrote:
I don't see how "crop factor" is even relevant in a camera that doesn't use
K-mount lenses.
This comment confuses me. Crop factor is relevant because most people
don't think in Field of View. They think in 35mm camera focal length
equivalents.
Pentax obviously thinks it is relevant, which is why their Q lenses
have both the actual focal length printed on the front and also the
35mm camera focal length equivalent (which is the focal length of the
lens multipled by the crop factor).

Darren Addy
Kearney, Nebraska

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