Takahashi 180ED, Nikon D800, SE8, Orion Atlas and STT-8300M with integrated OAG
Thirteen months to finish the Messier List (Jan 2013): http://www.astrobin.com/users/jerryyyyy
Stanford California: Personal Weatherstation
8" GSO RC with CSL Moonlite FocuserTelevue TV60isLosmandy G11 with Gemini 2 (with Ovision upgrade)
SBIG STT-8300m with Self Guiding filter wheel
A wide assortment of lenses for my Canon.
Mach1GTO / G11/G2 (stock) / AT6RC / AT10RC / TMB92SS / Astrodon 50D / STT-8300M / FW8G-STT / PixInsight / etc, etc. Astrobin - Flickr
Quote:i wonder if your reducer spacing is right. is it normal to have such strong vignetting with the C8 and celestron reducer?
Quote:I was trying to figure this out too, I am going to a dark sky location at high altitude in a few days time. I put the details of the location I was going to in Skytools 3 and it keeps on telling me the optimal exposure is 1 minute long, this doesn't sound right to me. I would barely be able to capture any data with 1 minute exposures even from a dark site.
My PixInsight Tutorial
Pointer to Other Useful Threads of Mine
Celestron EDGE 11/CGEM | Stellarvue SVR90T-25FT20MM ES100 | Televue 31MM Nagler T5 | Televue 11mm Nagler T6 | Televue 2X PowerMate Sky Safari 4 | SkyFi