When are you using a prime lens vs zoom?
Man you sure know your stuff,always enjoy your replies.Henry Peach wrote: And remember that f/#=focal length/exit pupil. So a f/1.2 200mm lens would need a max aperture size of over 165mm. By the time you add the lens around the aperture you end up with a lens that has a larger diameter than it is long. Make it a zoom lens, and it's going to be like having a large pail made of metal and glass on your camera.
robbie wrote: Man you sure know your stuff,always enjoy your replies.
Thanks. I've been obsessed for a while.
Beyond school and studying on my own I worked at a full service photo lab/camera store for a few years. I spent 40 hours a week talking to photographers about photography. I picked up a lot there. It was what we did before online photo forums. 
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