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Hey mithrandir,
Yeah I use the "600 Rule", sometimes even "500 Rule", however, my understanding is that is for worst case scenario with the object being on the equator, however, LMC is close to the SCP, so I assumed that I could increase the exposure time. I settled on 10sec as it produced good images on the camera LCD.
Next time, I'll slow it down a fraction.
Your explanation of the "600 Rule" is a good reference to others.
As for f-stop, I use it fully wide open at f2.8, I have tried f3.2, but not enough to know if there is a noticeable increase in sharpness for the decrease in light.
Tim
Last edited by tah997; 17-01-2013 at 06:02 PM.
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