Unlike Canon EF lens, Nikon lens has an aperture ring on the lens. The aperture ring can be set to any f-stop supported by the lens any time, permanently.

I get this error code when using a T-Ring lens adapter. How does one stop this from happening? I want to use my camera on my telescope. Will Sat, 14 Jan ...

Jan 2, 2010 · Nikon Coolpix L12 - Reinserting front lens. I have a Nikon Coolpix L12 that previously experienced the notorious "lens error" problem.

Jul 14, 2009 · My concern is focus with focusing screen and eyepiece may not able to work proper because of different image angle between FD and EF? Any ...

Hi! You must to buy a M42 adapter ring for Nikon mount system. Can Yoy to buy with: M42 - Nikon Lens Adapter (for long focus M42 lens);. M42 - Nikon Lens ...

Oct 14, 2009 · The Canon EF lens protocol is a private interface. And so far, no one has publicly published the protocol from reverse-engineering it ...

Sep 18, 2009 · I just got a lens that is labeled as a "Mamiya-sekor EF 1:1.7 f=50mm" As I'm new to photography I thought it would fit my rebel xt being that it ...

The auto-focus mechanism on this lens is based on Canon's micro motor. It is noisy and doesn't sound very smooth. In low-light and low-contract situation, it ...

Im using the unmodified samplecode and it crashes with the exception. Tried Canon SDK 1.3 and Canon SDK 2.0. Both the same. Here are the details of the ...

I have a few ideas on what to do with this battery pack. I could 1) rebuild it with new battery cells; or 2) turn it into a dummy battery interface so I can use ...