Hello,

I'm using kstars/ekos with a 5D Mark III and experienced problems when it was time to capture flat frames.
The 5D mark III is part of the canon DSLRs where the bulb mode is separated from manual mode on the dial.
I've try to make some test to clarify things, here is what I've noticed :

• Dial : M mode ->
  • Force BULB : ON -> the exposure setting in ekos has no effect and doesn't seem to affect the exposure set on the DSLR. The exposure time selected on the DSLR is used.
  • Force BULB : OFF -> the exposure setting in ekos works as expected and modify the DSLR exposure time. But if you set an exposure time > 30s, the exposure is not set on the DSLR and it uses his currently set exposure.
• Dial : BULB mode ->
  • Force BULB doesn't seems to has any effect (seems logical because it's already forced on the DSLR) but the exposure time is limited to 0.001 (1/1000) so it can be a problem to capture flat frame for high ISO