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Old Apr 6, 2004, 10:30 AM   #21
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Quote:
Originally Posted by barthold
... other than that I need to re-examine my handheld techniques.
Is this what IS is supposed to solve?
Beside you were shooting at 1/4000s... IMO it's still focus related and your subject contrast is not helping.
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Old Apr 6, 2004, 8:42 PM   #22
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1/4000 sort of annihilates any need for IS.
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Old Apr 6, 2004, 9:20 PM   #23
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Quote:
Originally Posted by Normcar
1/4000 sort of annihilates any need for IS.
...unless one has the DT's
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Old Apr 6, 2004, 9:52 PM   #24
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I'd say that even with the DT's one would need to be a very fast DTer for it to affect a 1/4000 shutter. That's pretty fast. But if it's the "Andale! Andale! Ariba! Ariba!" DT, compliments of Speedy Gonzales, then surely IS will play a part, I think. Even then I wouldn't be too sure, since I honestly believe that IS shines with very slow shutters. It then shines for sure as I have tried it myself with the slow shutter and the difference is very visible.
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Old Apr 7, 2004, 1:50 AM   #25
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Quote:
Originally Posted by NHL
Quote:
Originally Posted by barthold
... other than that I need to re-examine my handheld techniques.
Is this what IS is supposed to solve?
With handheld technique I don't just mean holding still. Getting the focus by pushing in the shutter button half way, waiting for the IS if necessary, not leaning forward or backwards in the mean time (that can nicely screw up your focus at F2.8) etc.

Quote:
Beside you were shooting at 1/4000s... IMO it's still focus related and your subject contrast is not helping.
I think its contrasty enough. You really don't think so?

Here are the shots:

First handheld at F2.8:



Next is handheld at F3.5:



Next is on a tripod, IS on, F2.8:



Next on a tripod, IS on, F3.5:



And finally, just to compare, on a tripod, IS on, F8:



I also took pictures on a tripon without IS, but I didn't see any difference compared to the ones with IS on.

So what do you think?

Barthold
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Old Apr 10, 2004, 7:10 AM   #26
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Barthold

It looks to me like your lens is OK too at f/2.8 (3rd shot on tripod). On the 1st f/2.8 shot: the bottom wood planks are pretty sharp on both shots... What I think is still the back/forth displacement of the camera/body that's happening and no IS can compensate for.

At f/3.5 the DOF just makes the vent focusing sharper than the paper thin DOF at f/2.8. You just have to shoot from a tripod then unless you can lean/brace yourself from a backwall ! :lol: :lol: :lol:
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Old Apr 10, 2004, 9:59 PM   #27
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Thanks NHL for looking at the pictures! I know Eric has mentioned it many times before, it is really easy to lock down focus, then lean back or forth a bit without noticing, then take the shot. The result is a nice out of focus shot ..... I'll just have to get better at recognizing this. At least now I know its not my lens that is at fault. That's a relief.

Barthold
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Old Apr 12, 2004, 1:46 AM   #28
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barthold, your new avitar is excellent! You are wealthy indeed and anything else pales in comparison, including lenses. Congrats on the new barthold life!
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Old Apr 12, 2004, 2:11 PM   #29
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Normcar, thank you!

Barthold
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