Problem with Vibration Reduction - VR with Nikons?

Started Jan 15, 2012 | Discussions thread
Mako2011
MOD Mako2011 Forum Pro • Posts: 23,523
Re: Problem with Vibration Reduction - VR with Nikons?

Juggernaut122 wrote:

raunak wrote:

The focal range of the sx-130 is 5mm-60mm. Due to its smaller sensor, it gives the field of view of a 28-336 mm lens. You used a shutter speed of 1/60th of a second at max zoom for the canon which is fine if you go by the rule of shutter speed being no slower than the reciprocal of the focal length.

In case of the nikon, the focal range is actually 55-200 mm. So, going by the same rule you should have maintained a shutter speed of atleast 1/200th of a second at the long end. VR can save you sometimes but for critical sharpness you better use higher shutter speeds. I can see you only used ISO320 where as you could have easily gone up to 800-1600 on the D5100.

Also, at the same aperture, the canon will have a much deeper DOF due to its smaller sensor - so your blurry result could also be a result of the markings lying outside of the focal plane.

Hope this helps. Try again with faster shutter speeds and see the results.

Hi Raunak,

Thanks for the input.

I did find that, as you said, if I used a faster shutter speed that the images were then as clear (and sometimes more clear) than the sx 130.

I am totally a newbie at dslr photography and I certainly know I have alot to learn.

I don't know enough about the relationship between the lens and the sensor, so I assumed that I would get a similar shot when the camera's were set to similar settings - clearly not true.
So the 1/focal length rule has to do with image clarity?

Not clarity. On a DX body (with no image stabilization... lens or body) a good rule of thumb to avoid the affects of camera shake it to use a shutter speed 1.5 x the focal length (1 x focal length for FF bodies). In the case of the 55-200 at 200mm...a 1/300s would be a place to start. VR can allow you to use much slower shutter speeds in an effort to lessen the effects of camera motion (subject blur do to motion of the subject can not be lessened with stabilization). Good hand hold techniques can also be very affective and even help VR to a point.

I am still confused as to why at 1/60th the canon shots are clear but takes 1/200 for the Nikon if they have equivalent image stabilization abilities...perhaps it has nothing to do with VR (but then what does VR do for us?)

Your lens may be off from time to time...VR is Not perfect. See the 18-105 examples. Also, try the 55-200 at 200mm at 1/100s and your Canon at 1/45s (equalized for focal length) and see what you get.

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