Search found 26 matches

by wcblack7
Fri Apr 29, 2022 8:06 pm
Forum: Deep Sky Imaging
Topic: Uniform image drift while guiding - how does it occur?
Replies: 4
Views: 1828

Re: Uniform image drift while guiding - how does it occur?

Success... on the flexure issue anyway. Still have a little flexing, but much more manageable. Now on to reducing my RMS error on the RA. I can still see it, but much less. Also, the atmospheric dispersion is having an effect as well. [https://www.cloudynights.com/gallery/image/147782-stack-35frames...
by wcblack7
Thu Apr 28, 2022 7:38 pm
Forum: Deep Sky Imaging
Topic: Uniform image drift while guiding - how does it occur?
Replies: 4
Views: 1828

Re: Uniform image drift while guiding - how does it occur?

Thanks Robin. Your comments got me hunting for flexure and I think I figured this out. I'll find out tonight, hopefully. I found a particular flex point only on my imager that happens to align with my RA axis when DEC is pointing due E or W. So a couple of things I've learned (or remembered): 1 - Fl...
by wcblack7
Tue Apr 26, 2022 12:55 am
Forum: Deep Sky Imaging
Topic: Uniform image drift while guiding - how does it occur?
Replies: 4
Views: 1828

Uniform image drift while guiding - how does it occur?

I've gone from a piggyback arrangement for my guide scope and image scope to an asymmetric side-by-side set up. I'm still working through the transition, but have noticed that I'm getting longer hot pixel trails in my stack that seem to be completely aligned with my RA. Also, I believe I'm getting m...
by wcblack7
Fri Feb 08, 2019 1:07 pm
Forum: Gallery
Topic: Nebula Photos on Superbowl Sunday
Replies: 3
Views: 1728

Re: Nebula Photos on Superbowl Sunday

Thanks Nick.
All those targets and crummy winter weather! We had sort of a false Spring here this week and a few really nice days. Now winter is back with a vengeance.

I checked out your Rosette nebula photo... great detail in there giving it a lot of depth - nice!

Bill
by wcblack7
Fri Feb 08, 2019 2:58 am
Forum: Gallery
Topic: Nebula Photos on Superbowl Sunday
Replies: 3
Views: 1728

Nebula Photos on Superbowl Sunday

Instead of watching the same old Superbowl, I took my 80mm APO out for first light. Got it for Christmas, but this was the first night with good weather! https://drive.google.com/open?id=1pX5kaHtL5vrIPfseap0GcNlBNJBiwElZ These were taken near Hiram, GA in the US (N33d50m, W84d50m) using SharpCap 3.2...
by wcblack7
Sun Dec 09, 2018 2:12 pm
Forum: Bug Reports
Topic: ZWO ASI385 Highspeed Frame Drops
Replies: 7
Views: 3234

Re: ZWO ASI385 Highspeed Frame Drops

Hi Robin, That makes sense... The ASICAP version I'm using is v1.5 released on 11/15/2018... However I don't think it showed up on their website until early December. They've added a histogram and probably a few fixes. By the way, I hope your recovery went well last month and happy Holidays! Thanks!...
by wcblack7
Fri Dec 07, 2018 7:14 pm
Forum: Bug Reports
Topic: ZWO ASI385 Highspeed Frame Drops
Replies: 7
Views: 3234

Re: ZWO ASI385 Highspeed Frame Drops

If it is a poor USB communication issue, wouldn't I also have the same issue with ASICAP (the ZWO capture software)? On the same computer with the same cables, I don't seem to have the issue with the camera in ASICAP. Of course ASICAP is not as capable as SharpCap, so it is less taxing on the CPU, b...
by wcblack7
Thu Dec 06, 2018 8:04 pm
Forum: Bug Reports
Topic: ZWO ASI385 Highspeed Frame Drops
Replies: 7
Views: 3234

Re: ZWO ASI385 Highspeed Frame Drops

Hi Robin, Thanks for responding. I've tried adjusting the turbo USB settings to very low, auto, etc..., but no luck fixing the problem. What I really find strange is that it functions completely normal in RAW16 mode, but not RAW8... of course the high speed frame rate option is only available in RAW...
by wcblack7
Wed Dec 05, 2018 7:48 pm
Forum: How do I?
Topic: WiFi Camera Connection
Replies: 15
Views: 7024

Re: WiFi Camera Connection

Hi John,
Thanks!... I believe that would do the trick.
I never heard of the "Compute Stick" before now, but very cool!
Bill
by wcblack7
Wed Dec 05, 2018 6:04 pm
Forum: Bug Reports
Topic: ZWO ASI385 Highspeed Frame Drops
Replies: 7
Views: 3234

ZWO ASI385 Highspeed Frame Drops

Hi Guys, I'm having an issue trying to use my ASI385 camera in highspeed mode in the most recent Sharpcap 3.2. The camera works fine in the RAW16 color space with frame speeds up to 65 fps using the full sensor ROI... essentially no dropped frames. When I switch to the RAW8 color space (which is req...