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Old Jan 15, 2012, 2:45 PM   #11
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Updating my experience.

Image comparison:

First (left) Nikon D5100 at 1/1000 shutter speed.

Next (right) the SX130 at 1/60th shutter speed.

The Nikon takes a bit more concentration, but I seem to be able to repeat these results and it does seem to have a very slightly longer reach.
(both are still cuts made from full size images without post processing)

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Old Jan 15, 2012, 5:37 PM   #12
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The Nikon takes a bit more concentration, but I seem to be able to repeat these results and it does seem to have a very slightly longer reach.
(both are still cuts made from full size images without post processing)
The 35mm equivalent focal length of the 55-200mm lens on the D5100 is 82.5 to 300mm, while the 35mm equivalent focal length of the 5-60mm lens on the SX130 IS is 28-336mm. The SX130 IS has a longer reach. I think what your seeing is the difference between a 16MP image and a 12MP image.

That's a considerable improvement for the D5100 shooting at 1/1000. Is the shutter speed the only thing that's different?
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Old Jan 15, 2012, 6:28 PM   #13
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The 35mm equivalent focal length of the 55-200mm lens on the D5100 is 82.5 to 300mm, while the 35mm equivalent focal length of the 5-60mm lens on the SX130 IS is 28-336mm. The SX130 IS has a longer reach. I think what your seeing is the difference between a 16MP image and a 12MP image.

That's a considerable improvement for the D5100 shooting at 1/1000. Is the shutter speed the only thing that's different?
I also lowered the ISO from 320 down to 100.
It was a bit brighter outside by the time I got back to taking more pictures.
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Old Jan 16, 2012, 5:57 AM   #14
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-D5100: 1/125 iso 320 - VR on - hand held

- I can see the VR trying to stabilize things while I shoot
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First (left) Nikon D5100 at 1/1000 shutter speed.
The VR is a system of accelerometers detecting motion, and causing a group of lens elements to oscillate to compensate for any camera shake.

You seem to be getting sharper images at higher shutter speeds, which tells me that your VR system may be stuck in a feedback loop, and the faster shutter speeds capture much less of the loop. I'd confirm this with some more tests, but I think I'd send it back.
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Old Feb 11, 2012, 4:04 PM   #15
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Hi guys,

Just wanted to updated what I have learned.

The VR works much better at the slower shutter speeds - pretty much 1/40 and slower. It works really well at these speeds - excellent results.

There seems to be a speed zone where the VR is very hit or miss - seems to be around 1/40-1/100.

At faster speeds the VR does not do much (as expected).

So the strange thing is that if the subject is not moving, I get better results by shooting at say 1/20 instead of 1/60 - handheld. Strange but true. So the question is to figure out if I should use VR when shooting at any point faster than 1/40?

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Old Feb 11, 2012, 5:44 PM   #16
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Did you notice any variation in its effectiveness at different focal lengths?
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Old Feb 11, 2012, 6:58 PM   #17
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Did you notice any variation in its effectiveness at different focal lengths?
Hi,

I have noticed this to be true at both 100 mm and 200 mm.

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