William Optics Diffraction Spikes Bahtinov Focusing Mask - For Dew Shield 75 mm to 110 mm - BM-DS-GR45 Kite Optics Magnification is 1

Magnification is 1

45° angle places head in a comfortable viewing position

Image software provides a powerful tool for imaging measurement and processing

Seasonal star charts display the locations of the best deep-sky objects for summer

William Optics Diffraction Spikes Bahtinov Focusing Mask - For Dew Shield 75 mm to 110 mm - BM-DS-GR45 Kite Optics Magnification is 1William Optics Diffraction Spikes Bahtinov Focusing Mask For Dew Shield 75 mm to 110 mm William Optics Diffraction Spikes Bahtinov Focusing Mask Fits dew shields with diameters of 75 mm to 110 mm Clear Acrylic Sheet design provides 92% light transmission Gives the Brightest diffraction spikes for focusing This is a William Optics Diffraction Spikes Bahtinov Focusing Mask made from Acrylic material, which is high in light transmission. This design