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TRI-Bahtinov Focus Mask - Celestron Guidescope A review of calibration frames

TRI-Bahtinov Focus Mask - Celestron Guidescope A review of calibration frames

Name: TRI-Bahtinov Focus Mask - Celestron Guidescope A review of calibration frames
Brand: yutopean.com
SKU: 99526346163
Price: 36.00 USD
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SKU: 99526346163

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TRI-Bahtinov Focus Mask - Celestron Guidescope A review of calibration framesWhat is the Tri Bahtinov? Essentially three Bahtinov masks in one, rotated over 120 degrees. It gives you three lines and three crosses to check focus and collimation, along three axis simultaneously. In addition to focusing, the Tri Bahtinov so also indicates collimation status along three axis. This is interesting for e. g. Schmidt Cassegrain telescopes, where the collimation is done by push pull screws of the secondary mirror along three axis. When

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Description

A review of calibration frames 85

and center the camera over the eyepiece using the knobs

and a few more of the most famous celestial objects

But as you survey the image

no-tool set up

Exchange/Return Notes