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pcad
Carpal Tunnel
Reged: 01/17/05
Posts: 1501
Loc: Connecticut
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Re: Resolution and phase-correction
02/14/07 08:19 PM
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Like anything else, having one component work well doesn't mean the final product works well.
With any erecting system, the goal is to produce an upright, correct image while interfering with the quality of the image as little as possible. Phase coatings help minimize interference effects seen in roof prism systems.
What good does having excellent roof prisms do if the optics are not up to snuff? I'd rather have good optics with decent uncoated roof prisms than poor optics with excellent p-coated roof prisms.
Sense or no sense?
Peter
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Peter
Telescopes 25 - 318 mm
Binoculars 15 - 88 mm
Microscope 50x - 1000x
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