SharpCap Forums

Just a guess but you have Black Level set to zero. (I say a 'guess' because I am assuming that Black Level is the same thing as Offset for your camera. Different manufacturers can't agree on a common name.)

Brian

I thought you might be interested in this:
https://spaceweathergallery2.com/indiv_ ... _id=205677

Brian

Your ability to "freeze" the atmosphere is a function of your exposure. The shorter the exposure the better. However, ultra-short exposures limit you to prominences and the chromosphere. You can employ stacking short bursts of frames every 30 seconds but this might be beyond SC's ability g...

Bill, Only use the Ha filter during partial phases. You'll have plenty of time to discover the proper exposure using the histogram. Remove the filter during Bailey's Beads and totality. Run through the following exposures: 1/1000, 1/500, 1/250, 1/125, 1/60, 1/30, 1/15, 1/8, 1/4, 1/2, 1, 2, 4, 8, 4, ...

Hi Bill, I have photographed two total eclipses: Africa in 1973 and Mexico in 1991. I used Kodachrome slide film each time, so it is a lot slower than modern CMOS cameras. In Africa I used a 60mm f/11 refractor and in Mexico a SLR with a 200mm telephoto lens at f/5.6. In both cases my bracketed expo...

Hi Wayne, You list your location as "Bolton Laning" (sp?) Would that be the same as Bolton Landing? According to astrospheric.com you are just south of the path of totality. They say you will get 99.51% of the Sun obscured. What source are you using? I'm driving from Peekskill (40mi north ...

Dave,

Yes, too short of an exposure brings its own set of problems. I think you are good with 3 stacks: 30s, 60s, and 120s. Then just concentrate on reducing noise by increasing Integration Time like 50x30s, 50x60s, and 50x120s.

Brian

Hi Dave, Thanks for the great write-up! I have a question. Let me repeat your Lights exposure times. You wrote: Data: Lights 50x10s, 30x30s, 30x60s, 15x120s When I convert to Integration Time, I get: Data: Lights 500s, 900s, 1800s, 1800s IMO, you won't gain much faint nebula by moving up to 240s exp...

Glen,

If you have Google Drive or something similar, create a folder and make it public. Upload your image file there, then send us the link to the folder.

Brian

Hi Glen,

Can you share an image of your best focus and camera settings file.

Thanks,
Brian