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billhinge

Bahtinov mask for spectacle wearers with cameras

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A bathinov mask will create diffraction spikes around a star that will look something like this

)|(

you just need to adjust focus so the middle line is in the center as opposed to something like this

|)(

This is crude but you get the idea... a better explanation here

Why do you worry about wearing glasses ? these lines will show up on your laptop or liveview of your DSLR.

If you only do visual I don't see any use for a bathinov mask... Although it can be helpful on SCT to find if you are focusing or defocusing as SCT need a LOT of turns to achieve focus but still you do not need a mask for visual.

Edited by Vox45

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Good point, I wear glasses for reading but not for using a scope - just getting a bit short sighted. Just checking, had a bit of a senior moment I guess 

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