alacant Posted March 21, 2017 Share Posted March 21, 2017 Hi everyone. I haven't dared post here having been hanging around the beginners section for the past year. Still many doubts and unanswered questions about AP but anyway... Here's one I haven't seen for a while... Thanks for looking and clear skies. Link to comment Share on other sites More sharing options...
triton1 Posted March 21, 2017 Share Posted March 21, 2017 Beautiful loving the contrast of the stars Link to comment Share on other sites More sharing options...
ollypenrice Posted March 21, 2017 Share Posted March 21, 2017 Equipment list in the sig helps others to give advice. This has good tight stars, nicely colourful, and a generally excellent background sky. (There's a minor horizontal bright band along the bottom. This can be beaten into submission in Ps and others but I wonder why it's there.) You're not using an Atik 383? Olly Link to comment Share on other sites More sharing options...
andyo Posted March 21, 2017 Share Posted March 21, 2017 nice shot with good star colours Link to comment Share on other sites More sharing options...
alacant Posted March 21, 2017 Author Share Posted March 21, 2017 Hi everyone and thanks for your encouraging comments. All much appreciated. Sorry for the lack of detail; it's taken with a Canon 700d. 31 minutes ago, ollypenrice said: horizontal bright band along the bottom Yeah, this is the third replacement camera I've had. The area you mention is common to all three: Something to do with non blackened mirror edges (?). It doesn't happen with my daytime 1200d or my gf's Nikon, so I'm pretty certain it's the camera rather than anything in the optical train. As you say, it's ps-able but if anyone has any ideas of losing it that would be great. TIA from an overcast Alicante. Link to comment Share on other sites More sharing options...
laser_jock99 Posted March 21, 2017 Share Posted March 21, 2017 Nice star colours. The band could be CCD amp glow in which case dark frames might deal with it? Link to comment Share on other sites More sharing options...
alacant Posted March 21, 2017 Author Share Posted March 21, 2017 Hi. Thanks. I've asked before about this but never got a solution apart from return the camera. Here's an example with the bottom edge vignetting corresponding to the mirror hinge. Flats frames deal with most of the problem but don't remove it completely. It's a pain... Link to comment Share on other sites More sharing options...
gnomus Posted March 21, 2017 Share Posted March 21, 2017 58 minutes ago, alacant said: Hi everyone and thanks for your encouraging comments. All much appreciated. Sorry for the lack of detail; it's taken with a Canon 700d. Yeah, this is the third replacement camera I've had. The area you mention is common to all three: Something to do with non blackened mirror edges (?). It doesn't happen with my daytime 1200d or my gf's Nikon, so I'm pretty certain it's the camera rather than anything in the optical train. As you say, it's ps-able but if anyone has any ideas of losing it that would be great. TIA from an overcast Alicante. Specifically is this a 383 plus EFW2? Link to comment Share on other sites More sharing options...
alacant Posted March 21, 2017 Author Share Posted March 21, 2017 Hi. No. It's a Canon 700d but do please let me know if this camera produces similar vignetting. TIA. Link to comment Share on other sites More sharing options...
gnomus Posted March 21, 2017 Share Posted March 21, 2017 No. It is adifferent issue. Link to comment Share on other sites More sharing options...
ollypenrice Posted March 21, 2017 Share Posted March 21, 2017 22 minutes ago, gnomus said: No. It is adifferent issue. But it was your issue I was thinking of! Olly Link to comment Share on other sites More sharing options...
nucdoc Posted March 21, 2017 Share Posted March 21, 2017 Very nice, love the star colours ! Mark Link to comment Share on other sites More sharing options...
Singlin Posted March 21, 2017 Share Posted March 21, 2017 I had a similar issue with my 383L and sent it back. They found no fault. I changed my power supply to 12v 5 amps and it went away. Link to comment Share on other sites More sharing options...
ollypenrice Posted March 22, 2017 Share Posted March 22, 2017 10 hours ago, Singlin said: I had a similar issue with my 383L and sent it back. They found no fault. I changed my power supply to 12v 5 amps and it went away. That's very good information. Thanks. Olly Link to comment Share on other sites More sharing options...
gnomus Posted March 22, 2017 Share Posted March 22, 2017 12 minutes ago, ollypenrice said: That's very good information. Thanks. Olly Different power options did not help my issue, which was one of reflections. I found two fixes for this: 1) putting a 6-7mm spacer between the Atik 383L and the EFW 2; and 2) purchasing a Moravian G2-8300. Link to comment Share on other sites More sharing options...
ollypenrice Posted March 22, 2017 Share Posted March 22, 2017 Just now, gnomus said: Different power options did not help my issue which was one of reflections. Shame. So many little things are out to get us in this game... Olly Link to comment Share on other sites More sharing options...
Adam J Posted March 24, 2017 Share Posted March 24, 2017 Number of exposures? ISO? and exposure length please Link to comment Share on other sites More sharing options...
Barry-Wilson Posted March 24, 2017 Share Posted March 24, 2017 Lovely and sparkly M44 . Link to comment Share on other sites More sharing options...
alacant Posted March 24, 2017 Author Share Posted March 24, 2017 6 hours ago, Adam J said: ISO Hi. 800. 20 minutes-ish in 1 minute snaps. HTH. Link to comment Share on other sites More sharing options...
PatrickGilliland Posted March 27, 2017 Share Posted March 27, 2017 Thats a pretty and tidy image. Paddy Link to comment Share on other sites More sharing options...
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