Bahtinov Mask for DSLR Lenses

thingiverse

This modification expands Eric Lofgren's modifications to Brent Burton's original Bahtinov mask generator, specifically targeting a collection of DSLR lenses rather than a single lens. A table of lenses and their attributes serves as the source for mask creation. Simply uncomment the lens you wish to create a mask for or add new lenses to the table according to the layout in the SCAD file. Pre-configured Lenses: * Sigma Art 50mm f/1.4 * Canon 100mm Macro f/2.8L * Canon 7-200 f/2.8L II * Sigma Sport 150-600mm f/5-6.3 * Optex 6 Inch Telescope External Attachment * Optex 6 Inch Telescope Internal Attachment * Tamron 18-400mm (courtesy of Lucas Di Pentima, https://www.thingiverse.com/ldipenti/about) All pre-configured lenses now have STL files so you can just print and go. I have also added some images taken using these filters indicating a correctly focused star. In this case Sirius, brightness 1.25 is shown. These four examples clearly demonstrate how well a correctly focused image appears at 10x magnification on the rear screen for both 50mm and 600mm lenses respectively. Please let me know if you add new lenses and I will update this file.