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#1 speedster

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Posted 01 March 2024 - 01:57 AM

I need to take an automated series of 7 shots with shutter speeds from .001 to 1 sec.  Sony A6000 will do 11 FPS in continuous drive mode but, in a NINA sequence taking a shot at one speed, taking a second at another speed, etc., NINA hangs with the message "camera did not set image as ready after exposure time +60 seconds."  That can be worked around but inserting a 2 second wait into NINA sequence between each shot.  But, using NINA, it takes a little over a minute to loop through one sequence of 7 shots.  It doesn't seem to be a NINA problem as the camera is just taking it's time to write the file to the SD card. 

 

Continuous (burst) mode provides the speed but it's manually press the shutter, guess how many shots, manually release the shutter to stop, change speed, and repeat.  I can't help but think there is a better way but I just don't have the Mojo (yet).

 

The desire is to take 7 shots with different shutter speeds and repeat the loop.  Any ideas?



#2 Tapio

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Posted 01 March 2024 - 02:41 AM

I'm guessing you are talking about eclipse photography.

If I'm right then I think something like Eclipse Orchestrator might work better.



#3 speedster

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Posted 01 March 2024 - 11:52 PM

Eclipse Orchestrator has the functionality but unfortunately doesn't support Sony cameras. 



#4 T~Stew

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Posted 06 March 2024 - 02:22 PM

Can't just a regular intervalometer trigger your high speed mode automatically?

 

Canon has other issues, when bracketing it stops at 7 shots (on my 7DII) it won't start another bracketed sequence unless shutter is released a pressed again unfortunately. But I can use intervalometer to trigger a .8 second shot (enough time to go through the 7 shot bracketed sequence burst) wait one second then repeat. So not continuous but at least 7 shots in under 2 seconds is good enough. Maybe you can do something similar?

 

Edited to add that of course if your bracket is up to 1" then the intervalometer setting will need to be longer than my example, I was more referring to my settings with diamond ring / beads. For longer shots of faint corona I will have a longer setting which I haven't worked out the math yet.


Edited by T~Stew, 06 March 2024 - 02:24 PM.


#5 speedster

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Posted 06 March 2024 - 11:30 PM

I think my intervalometer is going to be the best bet.  With the camera in continuous mode and the intervelometer set to 10 frames, it takes 20+ shots at the faster shutter speeds and only about 4 at the slower speeds.  It gets confused.  But, with an interval set at 1 sec, it shoot the correct number of shots at everything below 1 sec.  I can make it work.



#6 erictheastrojunkie

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Posted 06 March 2024 - 11:38 PM

Tell NINA to save your images to the SD card and not to download to your computer, this will utilize your cameras buffer and let you take way more pictures, faster.

#7 speedster

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Posted 07 March 2024 - 03:37 AM

Do you know where in NINA to do that?



#8 Spaceman 56

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Posted 14 March 2024 - 02:37 AM

The desire is to take 7 shots with different shutter speeds and repeat the loop.  

Why ?



#9 speedster

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Posted 14 March 2024 - 11:35 AM

High dynamic range composite of totality.  Shutter speeds vary from inner corona all the way to Earth-shine.




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