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Orion 80mm ED Lens Cap Question

Started by edkess, 06/08/2004 09:20PM
Posted 06/08/2004 09:20PM Opening Post
My 80mm ED came with a cap that fits over the lens shield. The cap itself has a 2.5" stop-down opening with its own separate cap.

What is the intended function of stopping down the aperture like this? Lunar or solar observation?

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Ed Kessler
Posted 06/10/2004 02:54AM #1
#1-DO NOT USE IT FOR SOLAR OBSERVING!!! Only use the prper solar filter.
#2-Possible for lunar use buit a polarizing filter would be best for lunar