Moon from this evening 8-5-12

well here's a try with a 60D and a sigma 70-200 2.8 with a 2x sigma tele

settings:
1/80
f/5.6
iso 100
400mm (640mm) 1.6 crop factor

critique welcome

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pretty weak for that setup.

bump up the fstop to f/11, use a tripod, use a 2" delay, disable is and nr.

also, crop the picture and try a different composition.

ok tried a few more first one is f/11 the second is f/16 i think f/16 looks a bit better

maybe im missing foucs

f/11

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thats better, you got rid of that ca.

it could use some sharpness. try unsharp mask or some high pass/overlay technique.

and last one for the evening

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Getting better, but i disagree with needing f/11 or narrower. You don't gain any DoF with narrow apertures of the moon, only advantages from the lens being a few-stops up from wide-open. Diffraction will start softening the shots, as well as driving shutter-speed down. I find around 1 stop down to be a happy medium, most of the time. While i'm no expert, i like to keep to no slower than 1/100 at ~400mm for best sharpness, all while using the lowest ISO possible.

Edit: you can also use LV @10x and MF, to be sure focus is at its best...and MLU.

The only thing wrong is that it's overexposed. Focus is fine.

Go f/8, ISO 100 and a faster shutter speed, something like 1/250 sec.

thanks for the info everyone will give it another try tonight