Bahtinov Mask Focusing For Telescope 100 Tube Outer From

Descripción

***** CONDICIONES DE LA VENTA *****
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***** TITULO COMPLETO *****
bahtinov mask focusing mask for telescopes 100 bahtinov mask for a tube outer diameter from 98mm~134mm (3.86 to5.3) can be mounted with brass bolt inside or outside.
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***** DESCRIPCIÓN DEL PRODUCTO *****
  focusing mask will help you achieve precise focus in a few seconds provide the best focus for your telescope quickly and easily without guessing