You know that just might work if the existence of power contacts on the
lens is what tells the camera it's a SDM lens. However I suspect it's
actually querying the lens through the digital information contact.
It's shown on the figure on this page.
http://www.bdimitrov.de/kmp/technology/K-mount/Kaf.html
I don't think blocking the power contacts will help, and anything you
might block them with is likely to be sticky, I wouldn't be too sanguine
about putting something sticky, that might come loose, in the mirror box
of my SLR.
gldnbearz wrote:
Is there a way to block the SDM contacts for an over-ride?
- Pat
On Sat, Aug 22, 2009 at 6:11 AM, P. J. Alling<webstertwenty...@gmail.com> wrote:
Obviously not. If the chip in the lens tells the camera it's an SDM lens,
then by GOD that's what we'll use to focus. It's simple minded programing,
lots of state checking tends to slow things down when everything is working
right. It doesn't surprise me that there is no fall back to a "less
advanced" auto focus mode, even if the camera has been programed to notice
the failure at all.
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