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A couple from the SIGMA
- Thread starter Tom/Cocoa
- Start date
YELLOWDOGDAVE
New member
n/t
Sodbuster27
Member
But the pictures look good. They just aren't as sharp as they could be. Might be the resolution you have to make them to fit in the forums.
Did you take the bird pic with a narrow depth of field and what was the point of focus? It's very narrow.
Sodbuster
Did you take the bird pic with a narrow depth of field and what was the point of focus? It's very narrow.
Sodbuster
silvernail
New member
Looks like the light may have been not quite as good today, and at a lower angle. Going from 3.5 to 5.6 costs you a two stop handicap right off and the slower shutter means more shake, which gets pretty critical with magnification. You must have an arm like Sonny Liston ... I can't do any better than this most of the time when I am pulling down on a heavy tripod with that kind of light. I think the long tube contributes to the vibration factor too. The bird looks like an AF shot close enough to be in the Macro stage which has a pretty narrow DOF. The AF definitely looks for the nearest lines. The Sigma needs really nice light to be at its best; the 3.5 is more tolerant, which is to be expected. With all that, the Sigma shots are quite good and would be better with nicer light, I think. The Nikon lens is more expensive and brighter and seems to have better definition,contrast, and "crackle" but I'm not sure this comparison is enough to score a knockout on the Sigma. 