Quote:
Originally Posted by DavidTrap
Hope you figure out why it got slower (cause I have no idea), and then we can all fallback on your experience when faced with the same conundrum!
Good luck,
DT
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Well I think I got it now. My intervalometer was actually set to 20s so I stayed conservative with room to spare. All the shots just after sunset range between 1/30 to 5s. Then all of the sudden they double up in a very short period of time: 8s, 10s, 15s and even a few at 25s and 30s. So that's when I went over. The camera stayed on ISO 200 in automatic mode. When I switched to manual ISO 1600 then 10s subs were back to be shot every 10s, same as the beginning. If you look at the stars just when they start appearing within the clouds they're going slow. Then then accelerate (25 to 30s shots) then slow down to the same speed again. So it's working. I just have to avoid any subs bigger than let's say a 15s shot and I should be good to go. I'll test again tonight. Seems that the change in light is not linear. It starts slow then drops really fast.