The standard blue filter on a Davis MK 3 sextant can be replaced with cut to fit astronomy solar film for a very sharp sun image. Remove old filter by carefully pushing out the blue filter with thumbs and saving the plastic retainer to snap back in onto a piece of solar film that is cut to fit using the original filter as a template.
Link to astro solar film:
https://www.amazon.com/Thousand-Oaks-Optical-Telescopes-Binoculars/dp/B01770FDAC/ref=asc_df_B01770FDAC/?tag=hyprod-20&linkCode=df0&hvadid=343234125040&hvpos=&hvnetw=g&hvrand=5716050463909056819&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9011846&hvtargid=pla-442099537141&psc=1&tag=&ref=&adgrpid=68968886317&hvpone=&hvptwo=&hvadid=343234125040&hvpos=&hvnetw=g&hvrand=5716050463909056819&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9011846&hvtargid=pla-442099537141
Sunday, June 28, 2020
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