Howie Glatter Square Grid Holographic Attachment
|Howie Glatter's Square Grid Projection Attachment. A wide pattern spanning 21 degrees, best for fast scopes down to f/2.7 With this attachment 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. |
Howie Glatter products are now being produced by Starlight Instruments, makers of the Feather Touch focuser. This item is expected to be available by the end of November, 2017.
If you've already bought this product, please sign in and add your own review!