Originally posted by narichey81 I dont see why people think it is an insurmountable engineering problem to have a fully electronic mount for the mirrorless camera but still retain aperture and focus control. Any adapter for a kmount lens to a mirrorless camera is going to be of substantial thickness (look at the sony alpha to nex adapter, which does have aperture control).
http://www.sonystyle.com/wcsstore/SonyStyleStorefrontAssetStore/img/718x407/LAEA1.png
Anything for Pentax would be of similar dimensions. There is plenty of room in there for 2 micromotors, one to operate the aperture linkage (as sony has already done) and one to run the af screw. It would be more expensive and probably pretty slow focusing if it had to move heavy glass around, but I think alot of people would buy it if that meant they could still use their limiteds on it. And of course, using any of the sdm lenses would not be a problem as long as the adapter had aperture control. Samsung, panasonic, and olympus all make af pancake lenses that are not any larger than that adapter that squeeze in focusing motors along with lens elements and aperture motors. In fact, someone posted a video on dpreview where some guy in Korea had converted a samsung pancake lens for the nx10 into a working autofocus adapter for nikon FF lenses, and it had to move the entire FF lens back and forth. People assume its not doable just because no one has done it yet. But none of the other manufacturers have quite the incentive to preserve backwards compatibility that pentax has.
I totally agree!!!
For example, I have Panasonic micro 4/3 cameras, and the adapter is quite thick. If you buy a standard Pentax K - micro 4/3 adapter you can't use any of the DA lenses in a practical way, because they don't have the aperture ring on the lens.(so the lens is always in the fully stopped down position)
However, you can buy a Pentax K DA - micro 4/3 adapter, where there is a ring that can be used to open/close the aperture.
So in other words, there is plenty of room on the adapter to build in a host of features, including aperture and focus control using two micro motors.
Personally, I think Pentax would be smart to use micro 4/3 (
) rather than another new mirrorless system, because the standard and market is already established. But if they make a fully operational adapter for a bucket load of Pentax AF lenses, then at least they might sell a lot of adapters & lenses to current Pany & Oly owners!!!!!
And if Pentax released micro 4/3 cameras, I would definitely consider switching from Pany to Pentax, because I know the innovative approach Pentax has.