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While waiting for the clouds to clear to get first light on my RASA 8, I have removed the clear screw in optical window as recommended by Celestron. It would appear that this cell accepts 2” filters, so my question is given I am using a OSC camera with this scope, could I install a 2” L-enhance dual narrowband filter into the optical train using this cell, rather than using a filter drawer?

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To close this out, I can confirm a mounted 2” filter once removed from its mounting will fit into the RASA 8 optical window mounting.

It’s a bit of a faff to change filters, and I wouldn’t recommend it for a mono set up, but it can be done without purchasing additional hardware.

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