Sigma 150-600 C First shots, on 50D

Well I got up at the ungodly hour of 3AM (02:00 GMT) and went and found a spot to shoot the luna eclipse from. I had completely missed that this was happening on the evening/night of the day that I was picking up the new lens from WEX. So a couple of 600mm shots from the new toy.

The first was 600mm f/6.3 0.6s @ ISO 3200 and was taken just after the maximum point of totality.

I did 1/200 at f/8 handheld at 600mm with OS on with my sigma 150-600C and 7Dmk2

Yes I was surprised just how many stops difference there were between the exposure during and after the eclipse. There are 10 1/3rd stops difference in exposure between those two shots. Mind you it was only about half way out from the eclipse, which I am sure will have had some residual effect on the brightness.

In theory the surface of a full moon should be sunny 16, but in practice it seems to be about a stop less, which would be correct for your f/8 1/200 shot if it is at ISO100. Of course I still had mine on the tripod, those eclipse images really needed it. 0.6s exposure was about the slowest I could get and not see any of the movement of the moon. That second shot was just before the clouds rolled in and put paid to any more shooting.

Alan