My PixInsight Tutorial
Pointer to Other Useful Threads of Mine
GM-8 GII (soon w/OPWB) ; Orion Sirius w/EQMOD
Orion 80ED; AT72ED; AT6RC
Atik 314L+; Atik 420C
Moonlite Focusers, Moonlite stepper motor
Astrodon 5nm Ha, LRGB; Baader OIII, SII
Starlight Xpress 7x1.25" FW
Sequence Generator Pro, PinPoint, PixInsight, PS CS 5
Quote:Your image (at full resolution) shows a denoising issue that I've been curious about while playing with PixInsight. I use their a trous wavelets transform, and I see the same thing as in your image (when I'm denoising images that I know could use more data): fairly smooth results, with randomly interspersed darker pixels. I've played with settings quite a bit to try to remove them, but I can't do it without producing an objectionably "over smoothed" look. Have you noticed the same thing?
Clear skies - Jim Crazy PNW imager !
A-P Mach1 on 12" concrete pier - ROR structure.
Tak FSQ85-EDX, Tak FS-128. Orion 8" f/3.9 w/MoonLite motorized - MPCC MkIII CCD:
SBIG 8300M/FW8, Astrodon 36mm LRGB, 5nm Ha, 3nm SII, OIII - Canon EOS 6D unmod SSI3, SSAG,
Skytools3pro, MaxImDLpro, PSCS5, PSPpro, TheSkyX, TheSky6, BYE, StarTools
Orion XX14g -for visual- diags, ep's, accy tubes, Binocs .
Quote:Thanks Terry. This section is centered around IC 1871 instead of the Soul Nebula proper which is IC 1848.Thanks Jim. I had planned to collect more data on it the other night. Two hours in, I discovered I had centered it wrong. Doh! I then switched over to the Jellyfish.
Adam AP Mach 1, Rob Miller TRI36L, Celestron 8" Edge HD Hyperion 17mm, Celestron 40mm Plossl, TMB 7mm & 9mm WO 66, Lunt LS60/B1200 PT, CG-5 Clone STF-8300m Pro Package, Honis-Modified Canon XS, Un-modded T1i, SSAG, TSOAG9, SX LodestarLackawanna Astronomical SocietyMy Astrobin
QSI 683ws-5 hole Astrodon Gen II LRGB, Astrodon 5nm HA, Astrodon 3nm OIII Rigel systems Auto focuser Cannon T3i(un-modded) Astronomik CLS EOS clip filter Orion ED80T CF Sirius EQ-G w/EQ-MOD Orion MMAG PHD2 Backyard EOS ImagesPlus 5.0 Pix-in-sight Sequence Generator Pro Spike-a Flat Fielder
Quote:Very kewl image MR, as usual !Terry- remove & replace that filter made the corners better?wonder if the male threads are cut a little off on the filter itself?
Warren - Stargazing since the 60's! Scopes: ETX-LS6, ED80T, AT6RC, Lunt LS60T, C9.25 Mounts: Atlas EQ-G, Vixen Portamount II Cameras: Atik 314L+,DMK31AU03,SSAG, ASI120MC Filters: Astrodon LRGB, Orion HA, SII, OIII Acc: Orion 5 place Filter wheels x 2, Flatman Primary Imaging site: Bortle Scale Class 6 Red Zone http://astrobin.com/users/rigel123/
Astro-Tech AT8IN, AT72ED
Orion ST120, Orion ST80
Celestron CGEM (DIY Hypertuned)
QHYCCD QHY8 OSC Orion SSAG, StarShoot G3 OSC Canon T3 (unmodded)
My Astrobin images
Quote:Nice shot, there's some cool detail and structure there. It does look a bit grainy in the low signal area, but I don't think it detracts from the image overall. I'm finding I need to grab at least 4-6hr of Ha to smooth out that low signal.
Quote:My guess is that the ideal exposure where read noise gets overwhelmed is probably at least ten and more probably twenty plus minutes. Unfortunately, until I get OAG going, I need to live with five minute exposures. That is fine for LRGB where it does hit or come close to ideal exposure times.My telescope is running at roughly f/5.8.
Quote:Agreed, Madratter - too much denoising makes things look far worse.I'm curious about why you are limited to 5min exposures with a guide scope. What problems are you seeing at longer exposures?
Quote:That's close to the same FOV I used for my image of this one, great job!
Telescope: Takahashi FSQ-106EDXIII Mount: AP Mach1, CGEM DX Cameras: FLI ML16803, Canon T3i (unmodded), Canon T2i (self-modded Astrodon), PGR Flea3 Mono CCD Misc: CFW 4-5, ATIK EFW2, RoboFocus, MicroTouch Wireless Autofocuser, Astronomik Type IIc LRGB,IR742, Astrodon OIII3nm, Ha5nm & LRGB http://hythamsafieh.smugmug.com http://www.astrobin.com/users/Hytham
Quote:Maryland. I don't have the best skies in the world, but far from the worst.