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Problems with nc2 prism

Just got today the nc2 prism, and there is no way i can focus when it´s on, it´s normal?? should i remove the focusing screen?? when i remove i can only see trough the prism a small image area, the rest is black, but with the focusing screen cannot focus..... what can i do?

Thanks a lot
 
No you need the screen. Try to remove the prism and tell at what distance your finger is sharp if in front of the prism.
Perhaps a lens is missing.
 
No you need the screen. Try to remove the prism and tell at what distance your finger is sharp if in front of the prism.
Perhaps a lens is missing.



Thanks!! i have discovered that there is a little lens in the eye piece, i think that will be a correction lens, i removed it and now i can focus but cannot put my eye right on the eye piece, need to be like 2-3 cm away to see properly trough it. Is that the way is mean to be?
 
No a correct eye piece allow you to have the eye "inside". Perhaps you have a corection lens. On later prism you have to add a corection lens inside of the eye piece. Cann you tell if there is tow glass in your eye piece ?
 
No a correct eye piece allow you to have the eye "inside". Perhaps you have a corection lens. On later prism you have to add a corection lens inside of the eye piece. Cann you tell if there is tow glass in your eye piece ?

If I check the manual I have a lens that should be C in the manual, is a curved lens and that´s not allowing my to focus, so when i get rid of it i can focus but cannot put my eye "inside" need to be like 2-3 cm away. So should I look for a new C piece?? but how do i know which one??

Thanks again for everything
 
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