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Finally had decent seeing tonight and got to try out my Vixen PH extender on my new 10" F/5 Explore FirstLight Newt, it has a FL of 1260mm and with the 1.40x Barlow that becomes 1760mm (verified by PI). Great for going after small targets. Hardware: Scope - 10" F/5 Explore FirstLight Newtonian (Sold as a Dob but comes with rings and a dovetail) Camera - ASI 1600MM Pro (139 gain) Filters - ZWO LRGB 1.25" Mount - EQ6-R Pro ZWO OAG Barlow 1.40x = Vixen PH extender The PH Extender slides down the focuser tube, so you need at least a 2.5" focuser. For now I'm using the 2.5" HEX focuser's clamp ring to hold the extender. It has a lip, so you can secure it without fear of tilt. Bringing it to a focus also pulls pulls the focuser tube up high enough that it's not obstructing the light path in the OTA. d. 30 x 90" RGB (10 each) 70 x 30" Luminance NGC 891 |