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When Good I.S. Goes Bad
I was at an indoor birthday party yesterday here in cloudy
Pennsylvania. I have a Canon A710 and set the camera on Manual, to shoot lots of old folks and also little kids and animules without a flash. TMALSS (to make a long story short), only a third of the shots came out at all. The rest were blurry even though they were in focus when I shot them. A friend who is a digital wizard said I shouldn't go complaining to Canon just yet, and that I.S. does not work if the lighting conditions and/or focus is out of synch. But I got no "BUSY" warning, and there was no "fluttering hand" icon or low light warning. ISO was 400 or 200. How do you know when good Image Stabilization is broken? (For the record, I have it set on Continuous--whatever that means.) Thanks. |
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When Good I.S. Goes Bad
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When Good I.S. Goes Bad
Daniel Silevitch wrote:
That makes no sense. The IS system operates independently of the focusing and metering system. There's a set of motion sensors buried somewhere inside the camera, buried in the lens, actually. -- -- r.p.e.35mm user resource: http://www.aliasimages.com/rpe35mmur.htm -- r.p.d.slr-systems: http://www.aliasimages.com/rpdslrsysur.htm -- [SI] gallery & rulz: http://www.pbase.com/shootin -- e-meil: Remove FreeLunch. |
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When Good I.S. Goes Bad
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When Good I.S. Goes Bad
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When Good I.S. Goes Bad
Are you sure you didn't misunderstand him when he said that "I.S. does not
work if the lighting conditions and/or focus is out of synch". Could he have meant that IS will not prevent blurring if the light is too low (and therefore the shutter speed is too low), and also that IS will be of no help is the focus is incorrect? What was the shutter speed of the blurry shots? wrote in message s.com... I was at an indoor birthday party yesterday here in cloudy Pennsylvania. I have a Canon A710 and set the camera on Manual, to shoot lots of old folks and also little kids and animules without a flash. TMALSS (to make a long story short), only a third of the shots came out at all. The rest were blurry even though they were in focus when I shot them. A friend who is a digital wizard said I shouldn't go complaining to Canon just yet, and that I.S. does not work if the lighting conditions and/or focus is out of synch. But I got no "BUSY" warning, and there was no "fluttering hand" icon or low light warning. ISO was 400 or 200. How do you know when good Image Stabilization is broken? (For the record, I have it set on Continuous--whatever that means.) Thanks. |
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When Good I.S. Goes Bad
On Sun, 29 Apr 2007 12:47:57 -0400, Alan Browne wrote:
Daniel Silevitch wrote: That makes no sense. The IS system operates independently of the focusing and metering system. There's a set of motion sensors buried somewhere inside the camera, buried in the lens, actually. That's what I thought, but wasn't sure. Certainly for an SLR lens with IS, the sensors have to be on the lens, but for a fixed lens camera like the one under discussion, in principle the sensors could be somewhere inside either the lens or the body. I'd imagine that you get more accurate readings by putting them in the lens housing, but that's just a guess. -dms |
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When Good I.S. Goes Bad
Daniel Silevitch wrote:
On Sun, 29 Apr 2007 12:47:57 -0400, Alan Browne wrote: Daniel Silevitch wrote: That makes no sense. The IS system operates independently of the focusing and metering system. There's a set of motion sensors buried somewhere inside the camera, buried in the lens, actually. That's what I thought, but wasn't sure. Certainly for an SLR lens with IS, the sensors have to be on the lens, but for a fixed lens camera like the one under discussion, in principle the sensors could be somewhere inside either the lens or the body. I'd imagine that you get more accurate readings by putting them in the lens housing, but that's just a guess. In this case, the distinction isn't too significant, since the OP's camera and lens are permanently attached to each other in this case. With SLRs/DSLRs, the distinction is more significant, since the IS function is entirely contained within the IS lens and is entirely gone when that lanes is removed... -- Images (Plus Snaps & Grabs) by MarkČ at: www.pbase.com/markuson |
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When Good I.S. Goes Bad
MarkČ wrote:
Daniel Silevitch wrote: On Sun, 29 Apr 2007 12:47:57 -0400, Alan Browne wrote: Daniel Silevitch wrote: That makes no sense. The IS system operates independently of the focusing and metering system. There's a set of motion sensors buried somewhere inside the camera, buried in the lens, actually. That's what I thought, but wasn't sure. Certainly for an SLR lens with IS, the sensors have to be on the lens, but for a fixed lens camera like the one under discussion, in principle the sensors could be somewhere inside either the lens or the body. I'd imagine that you get more accurate readings by putting them in the lens housing, but that's just a guess. In this case, the distinction isn't too significant, since the OP's camera and lens are permanently attached to each other in this case. With SLRs/DSLRs, the distinction is more significant, since the IS function is entirely contained within the IS lens and is entirely gone when that lanes is removed... Oops... "lanes=lens" -- Images (Plus Snaps & Grabs) by MarkČ at: www.pbase.com/markuson |
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