Search found 16 matches

by Davidbr_48
Tue Aug 09, 2022 10:25 pm
Forum: Tips and Tricks
Topic: Blooming
Replies: 2
Views: 7439

Blooming

After adjusting focus to best position, the images of brighter stars extend over many pixels. (I think this is called "blooming"). This occurs even when focus is good - e.g., the dimmer stars in the image are pin points. Is there a way to use SharpCap to prevent this?
by Davidbr_48
Fri Jul 01, 2022 5:08 pm
Forum: How do I?
Topic: Sensor Analysis
Replies: 6
Views: 824

Re: Sensor Analysis

I neglected to mention - I'm working at F2 with a Starizona Hyperstar in daylight with tee shirt over scope. The sensor analysis keeps reverting to 234 ms and message to reduce brightness. No luck -- how to fix?

David / Seattle
by Davidbr_48
Fri Jul 01, 2022 4:55 pm
Forum: How do I?
Topic: Sensor Analysis
Replies: 6
Views: 824

Re: Sensor Analysis

I am trying to run a sensor analysis, but am getting same results as Mike. I am using a ZWO 183 camera on a Celestron 8" edge. I've tried putting a white towel over the scope, and tried removing the camera from the scope and covering the sensor with a translucent eyepiece cover -- but same resu...
by Davidbr_48
Sun Jul 25, 2021 11:29 pm
Forum: Tips and Tricks
Topic: revise old stack
Replies: 1
Views: 8012

revise old stack

I'd like to go back and tweak stacked images that have already been saved. How do I retrieve the "raw" stack, without the adjustments I made when I saved it?
by Davidbr_48
Fri Jul 16, 2021 12:19 am
Forum: ZWO Cameras
Topic: Color Space, Bit Depth, and Exposure Time
Replies: 3
Views: 1612

Re: Color Space, Bit Depth, and Exposure Time

Brian and Robin,

Thanks for clarifying this! Very helpful.

David
by Davidbr_48
Thu Jul 15, 2021 4:00 am
Forum: ZWO Cameras
Topic: Color Space, Bit Depth, and Exposure Time
Replies: 3
Views: 1612

Color Space, Bit Depth, and Exposure Time

What is the proper setting for color space and bit depth for the ZWO-183 camera? I use it with an 8" Celestron Edge with Hyperstar, under so-so suburban skies (Bortle 5?). Also: how much total exposure can I accumulate without burning out the whites, or running into problems? I like imaging fai...
by Davidbr_48
Wed Jun 02, 2021 9:54 pm
Forum: General Discussions
Topic: "Disappearing" Frames
Replies: 10
Views: 1462

Re: "Disappearing" Frames

ZWO183. Usually, it works just fine.....
by Davidbr_48
Wed Jun 02, 2021 5:45 pm
Forum: General Discussions
Topic: "Disappearing" Frames
Replies: 10
Views: 1462

Re: "Disappearing" Frames

The Dropped Frames count Normal Frame count both stayed at zero while the bottom right green bar kept cycling. Could be a cable problem -- I'll try another USB port, etc.
by Davidbr_48
Wed Jun 02, 2021 9:15 am
Forum: General Discussions
Topic: "Disappearing" Frames
Replies: 10
Views: 1462

Re: "Disappearing" Frames

clarification -- frames did NOT get counted, either as "stacked" or "ignored", but the timer bar (?) in bottom right was running....

Davidbr
by Davidbr_48
Wed Jun 02, 2021 9:12 am
Forum: General Discussions
Topic: "Disappearing" Frames
Replies: 10
Views: 1462

"Disappearing" Frames

Attempting to run Live Stacking, the frames were neither stacking nor ignored -- they did get counted. The timer bar (bottom right corner) was running 10 second exposures, but after each frame the exposure started again but the frame had "disappeared". What happened? Where was it hiding?