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Categories Shop Focusing Aids Bahtinov Mask 125-180mm

Bahtinov Mask 125-180mm

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£16.00
Price includes VAT, plus delivery


 

A Bahtinov Mask is a focusing aid. When fitted over a lens, it creates a 6 pronged diffraction pattern. As you adjust the focus, the middle spikes will move. When exactly in the middle, perfect focus has been achieved.

Tis mask is adjustable in size allowing fitting to telescopes with tube / dew sheilds from 125-180mm.

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Small Telescope Focus Aid - Bahtinov Mask 65-110mm