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Scope for Specific Aim - Recommendation

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farfarello View Drop Down
Optics GrassHopper
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Post Options Post Options   Thanks (0) Thanks(0)   Quote farfarello Quote  Post ReplyReply Direct Link To This Post Topic: Scope for Specific Aim - Recommendation
    Posted: July/05/2016 at 15:43
Hello

Who can recommend a spotting scope? There is a need to take a picture of an object 3 feet high at night under orange sodium light (street lighting), at a distance of approximately 200 yards.

I thought or the C90 Maksutov by Celestron, or the Barska Colorado 90mm, coupled with a cellphone camera. But perhaps a different scope should be used?

Thanks much!
Farfarello.
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3_tens View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 3_tens Quote  Post ReplyReply Direct Link To This Post Posted: July/05/2016 at 18:34
I have a C-90. It works fair to the eye but it is a F/13.3 lens. You will need a camera that can shoot at 1600 or 3200 ASA speeds to get much of a picture. You would do as well to spend the same $250 on a camera like the Nikon S 9900 that has a 30x lens. Not sure of the subject you are shooting, but picture quality will be low on both at 200 yards.

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farfarello View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote farfarello Quote  Post ReplyReply Direct Link To This Post Posted: July/06/2016 at 14:21
3_tens,

Thanks for your response. The object is a box and an experiment I am conducting. The aim is to get color change of a circular area on the face of that box of a rough diameter of 10 inches. The contrast should be high, between bright and dark. The experiment itself is a long story..What is a fair distance for such an optics? 100 yards?

Thanks,
Farfarello.
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