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Originally Posted by davidpretorius
Thanks Tony,
1016mm. Is that like a 40mm eyepiece, ie my 1250 f5 divide 40mm is 30 odd.
so 1250 divide 1016mm???
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Umm, I don't think so. My scope has a focal length of 1016mm. The camera doesn't use a lens at prime focus, so it doesn't have a focal length. Prime focus means that you are using the scope as a telephoto lens for your camera. As I said my field of view is slightly larger than what I see with my 40mm EP, so I guess you could say the magnification is about 20.
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Will the toucam with a fl of aprox 5mm have more magnification than a canon at prime focus in the same scope?
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That will depend on the chip size as well, but I am sure it will have considerably more mag than prime focus. A 5mm ep would give me approx 200 times. Couple that with a small chip and you won't get to see much.
Someone else with a better grasp of optics than me may be able to help.
Cheers