Terry Danks Photography: Birds, Scenery, a little astrophotography too. http://danks.netfirms.com/home.htm Equipment List: Too embarrassed to list it all. Roll-off-roof Observatory Constructed Fall, 2013
"I'm sick of following my dreams. I'm just going to ask 'em where they're goin', and hook up with 'em later." Mitch Hedberg
My Astro Photos
Quote: slow download only is an issue for me when it comes to sky flats (cuts in on the time to get them but just means i have to collect fewer but on more days).
Paramount MX AG Optical 12.5 IDK Apogee Alta 16803 AstroDon Series 2 E LRGB AstroDon Ha 5nm SII 5nm OIII 3nm SBig Sti ACP observatory control, ACP Scheduler PixInsight, Maxim DL 5, My Images http://www.remarkableheavens.com/
Quote:This is the problemQERed 34%, Green 37%, Blue 42%That means only that percentage of photons hitting the sensor are captured A low QE makes imaging a little tougher. I'll never buy another interline chip
Quote:The QE of this chip is not it's strong suit. ........ So, it's a bit harsh to dwell on the low QE of the KAI11000.
Quote:No, pixel size isn't going to make up for low QE. Well depth can help. SBIG started to unload these at 5k last August I think.
14.5" Starmaster with ServoCat and Argo Navis 1966 Unitron 4" Model 152 EQ Tec 140 TV NP101 f/5.4 APO Telvue .8 Focal Reducer FLI ML8300 and CFW-2-7 filter wheel Astrodon Gen2 RGBL 2" filters Baader 2" Narrow Band Filters Borg 50mm Guide Scope/ATIK Titan Guide Camera AstroPhysics AP900 Losmandy GM-8 Gemini
- Jared Willson
Quote:Thanks all. Especially to Mike for bringing up the relatively poor QE. It was something else I needed to investigate before commiting to the camera.Floyd:It this camera has more than a mere handful of hours on it, I'd be surprised! It's decided. I'm going to buy it! Like I said, a barely used camera that is well discounted can be a good deal.Blueman
Quote:Like I said, a barely used camera that is well discounted can be a good deal. Blueman
Quote: Quote:Like I said, a barely used camera that is well discounted can be a good deal. Blueman Every CCD ages regardless of whether it used or not. After all the dark current always accumulates unless you store the CCD at -100C.
Quote:So you might want to avoid buying from someone who lives at the top of a mountain. Frank
Quote:that is more dependent on terrestrial cosmic rays
Quote: But the deal is done.
Quote:I'll never buy another interline chip