Google
×
Explains the purpose of stacking teleconverters and how to calculating focal length, aperture, and aperture diameter.
Using auto teleconverters and auto extension tubes with manual lenses. A few years ago, my friend was working for a telescope company.
i have recently bought a canon eos xti dig camera. i enjoy taking action pics, but only as fun. i also got the ef 75-300mm f/4-5.6 III lens with it. my main ...
I was wondering why my M42 adapter on an old Chinon lens was not working with the teleconverter. ... I suspect that all of the new Canon EOS camera would have the ...
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 ...
This Canon EF 24-70mm f/2.8 L USM lens actually compliments a plethora of other equipment I have for my Canon. The 24-70 L has a magnification of 0.29x at 70mm.
The Canon EF 55-200mm f/4.5-5.6 USM lens is similar to the Canon EF 75-300mm f/4-5.6 USM in construction. The telephoto zoom lens is long with a telescopic ...
The Canon EF-S 55-250mm f/4-5.6 IS II lens is an opportunity for most new photographers to get a taste of wildlife photography. It's a excellent companion for ...
Minolta MD lens to Canon EOS body adapter. I'm looking for an adapter, which will mount a Minolta MD lens to a Canon EOS body. Can anyone give me a referral ...