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Wratten #25 Surplus Shed arrives!
The 4" #25 filter has just arrived from Surplus Shed. Looks good.
I'll mount the filter in a 4" PVC end cap, with a 100mm clear aperture with the Rosco UV-IR just infront.
The attached photos show the PST etalon and the 2" adaptors which will fit the Genesis.
BTW measured the PST objective, it's 400mm FL, f10 and there's no other optics between it and the etalon, therefore the etalon works in the f10 beam.
If the Sun ever comes back!! I'll do the transmission testing.
Karl, How did you go with the window tint film???
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