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Howie Glatter Holographic Attachment for Laser Collimator - Square Grid Pattern

Our Price: $35.00

Sale Price: $33.00

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In stock (10+ Available)
Ships by Next Business Day
Our Product ID: PALC-HG-HOLOSQ
Manufacturer SKU: HGHA-Square
Item Can Ship: Worldwide
Square Grid Pattern

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  • Square Grid Pattern
  • Howie Glatter Holographic Attachment for Laser Collimator

Product Details

Optional holographic attachments screw into the laser aperture and have a white screen front surface. They contain an optical element that diffracts most of the laser light into a diverging symmetrical pattern around the central beam. The projected pattern is useful for centering optical elements by making it symmetrical with the edge of the optic.

A 10 x 10 line square grid pattern is supplied as standard unless otherwise requested because it is the widest pattern. It spreads 21 degrees which allows centering of optics as fast as f/ 2.7. This pattern is recommended for general use because it can be used with the fastest telescopes likely to be encountered.