Tweedledee Posted February 19, 2018 Share Posted February 19, 2018 Can someone please explain the difference between the Altair Astro Hypercam 183c and the QHY183c. I may be wrong but I think it may be something to do with a 128mb ddr memory that seems to only come with the QHY, but I'm a bit confused by such electric things. Link to comment Share on other sites More sharing options...
Daz Type-R Posted February 19, 2018 Share Posted February 19, 2018 Pete - what are you doing posting in here? Looking at magic box of tricks - what is the world coming too, Pete is going to the dark side. Link to comment Share on other sites More sharing options...
Tweedledee Posted February 19, 2018 Author Share Posted February 19, 2018 2 hours ago, Daz Type-R said: Pete is going to the dark side. No, I just see it as a logical extension to my eyepiece collection. Want to have a go at EAA live viewing, and these new sensors look like just the job at 20 megapixels. Link to comment Share on other sites More sharing options...
+bryand Posted February 19, 2018 Share Posted February 19, 2018 (edited) The QHY camera has thermo-electric cooling which will (they claim) take it down to -45°C. The Altair version has a built-in fan and a large heatsink. Mine only drops the temperature about 8°C below ambient rather than freezing its innards. Edited February 19, 2018 by bryand BAZ 1 Link to comment Share on other sites More sharing options...
Tweedledee Posted February 20, 2018 Author Share Posted February 20, 2018 8 hours ago, bryand said: The QHY camera has thermo-electric cooling which will (they claim) take it down to -45°C. The Altair version has a built-in fan and a large heatsink. Mine only drops the temperature about 8°C below ambient rather than freezing its innards. Thanks Bryan. So which camera do you have? Are you happy with the it? Do you have any images to show? Link to comment Share on other sites More sharing options...
+bryand Posted February 22, 2018 Share Posted February 22, 2018 (edited) On 2/20/2018 at 07:26, Tweedledee said: Thanks Bryan. So which camera do you have? Are you happy with the it? Do you have any images to show? I've got the Altair version, and I'm very happy with it in the limited time I've had it. The Altair Capture software does most of the things SharpCap does, and I find it easier to use. Not had spectacular success yet, but these two shots show the pixel noise (coloured dots) and their removal using dark frames. http://i58.photobucket.com/albums/g280/cobrd/FlameNeb_Darks_33%20frames_1342sec.png http://i58.photobucket.com/albums/g280/cobrd/FlameNeb_with_noise.png Edited February 22, 2018 by bryand changed links Link to comment Share on other sites More sharing options...
+Bino-viewer Posted February 22, 2018 Share Posted February 22, 2018 Sorry Bryan, but with those links i'm just getting an error message (page does not exist) I do seem to have trouble with Photobucket though.....Maybe its a Mac issue ? Link to comment Share on other sites More sharing options...
Tweedledee Posted February 22, 2018 Author Share Posted February 22, 2018 Cheers Bryan. Could you try posting those links again. I get an error - "Sorry, the requested page does not exist." Link to comment Share on other sites More sharing options...
+bryand Posted February 22, 2018 Share Posted February 22, 2018 OK let's try these... https://photos.app.goo.gl/aq3Feh7iEZzfYwqD3https://photos.app.goo.gl/VCxLiu4qROPWkZHF2 B. Link to comment Share on other sites More sharing options...
Tweedledee Posted February 23, 2018 Author Share Posted February 23, 2018 Cheers Bryan. What info do you have on exposure time, stacks, etc? I presume they were taken using your 102. Link to comment Share on other sites More sharing options...
+bryand Posted February 23, 2018 Share Posted February 23, 2018 33 minutes ago, Tweedledee said: Cheers Bryan. What info do you have on exposure time, stacks, etc? I presume they were taken using your 102. Here's the log file from Sharpcap: [ALTAIRH183C] Output Format=PNG files (*.png) Capture Area=5440x3648 Binning=1x1 Pan=0 Tilt=0 Colour Space=RGB24 Fan=Off Temperature=5.5 Black Level=3 Flip=Vert USB Speed=2 Auto Exp Target=120 Frame Rate Limit=Maximum Analogue Gain=4762 Exposure=40681.797 Timestamp Frames=Off Hue=0 Saturation=128 Contrast=0 Brightness=0 Gamma=100 Extra Controls=Off (Faster) Negative=Off Colour Tint=1000 Colour Temp=6503 Apply Flat=None Subtract Dark=C:\Users\Owner\Desktop\SharpCap Captures\darks\ALTAIRH183C\RGB24@5440x3648\40.7s\gain_4762\dark_6_frames_2018-01-20T20_27_08.png Display Brightness=1 Display Contrast=1 Display Gamma=1 TimeStamp=2018-01-20T20:51:56.2757300Z TotalExposure(s)=1342.499301 StackedFrames=33 They were taken with the 9.25 SCT - the 102 is still awaiting decent weather. B. Link to comment Share on other sites More sharing options...
Tweedledee Posted February 23, 2018 Author Share Posted February 23, 2018 Thanks. Looks like 33 stacks x 40 second exposures = 22 minutes at F10. Link to comment Share on other sites More sharing options...
+bryand Posted February 25, 2018 Share Posted February 25, 2018 I finally got to play with the 183C and the 102 frac: No prizes for guessing what this is. 126 frames each of 8 seconds (Sharpcap gain of 422) 1008 sec total 15 darks with a temp of 1.3°C 2x2 binning producing a 2736 x 1824 image of which this is a small part. Explore Scientific ED 102 on a Celestron Evolution mount (I really couldn't be arsed to set up my equatorial mount) Link to comment Share on other sites More sharing options...
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