@Avi wrote:
I was using SGP with my cannon dslr yesterday to take some M81 images. In camera settings I set mirror settle time to 5 secs. I set to take 5 minute light images at 1600 iso. After plate solving etc., when I started the sequence the shutter opened and remained open exactly for 5 seconds but closed thereafter. However, the program was integrating image for 5 minutes. Same thing happened with the second image. When I looked at the image there was no galaxy but very few stars. I was hoping that 5 minute integration should show some galaxy. So I stopped the sequence and switched to Backyard EOS. Took a 5 minute image and there was nice M81. So I continued using Backyard EOS for the rest of the imaging session. However, this morning I thought may be mirror settle time is causing the problem so I changed the mirror settle time to 0 and it worked. The shutter remained opened for 5 minutes. I tried with different mirror settling time and shutter opens and close exactly at whatever settle time you input and software keeps integrating image. Hopefully my explanation is not too confusing. I may be interpreting the meaning of mirror settle wrongly or it is possible there is a bug. Going forward I am going to use mirror settle time as zero. Love SGP and its many functions.
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