Questions & Answers for: Opteka image histogram

Canon Powershot S2IS no image in viewfinder There is no image in viewfinder or flip screen but I can view previously taken pictures. Do I send it back to Canon for repairs, quote of $150. or do I go ...

camera doesn't focus very well on dark subjects. I have a Nikon D100 and have been photographing models against a white background. It works okay unless they are wearing black or dark blue clothing ...

Opteka 500mm f/8 mirror lens for my DSLR and it's says no lens I just got this lens for my sony a200 and my camera is telling me no lens is attached shutter is locked so what do I need to do to fix ...

...lens with a 2x tele-extender to take it out to 2600mm. It's slow, manual focus, without any form of image stabilization, and with no electronics so setting the exposure is also manual. It won't be as ...

...zoom of 650 without the 2X doubler. Shoot a picture. and check the result. You should have an image but it may be too light or too dark. If its too light you'll need to increase the shutter ...