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KENNETHD Mar 8, 2005 4:10 PM

One of my big questions (along with price) is I wonder how much IS would be needed or useful with a Dslr? Is the superior speed, lense availability etc., enough to offset the useful feature of IS? Best regards,


peripatetic Mar 8, 2005 5:27 PM


Mostly DSLRs put the IS in the lens rather than the body. The exception is the new Konina/Minola 7D.

I have 2 of the Canon 3rd generation IS lenses and they're excellent. However they only stop camera shake they don't stop motion so they're of limited use for moving subjects.

eric s Mar 8, 2005 7:04 PM

A "fast" lens (larger aperture, lower f-stop) is just as good as IS on a slower lens. But IS on a fast lens is even better. It certainly doesn't hurt (except making us a bit lazy with our technique) and it can help a lot.

I know that even on a very tripod and head there is a noticable improvement in sharpness if I have IS on.


Mar 8, 2005 7:18 PM

Having had & used both types of cameras, I didn't want to shell out the extra $300-$500 for an IS lens. The KM 7D eliminates some of that (but I would hold off untill the next model is released).

While DSLR's do have larger sensors (& less noise at higher ISO's) my neck problems forced me to use a tripod all the time (the D7 excluded). Having used a Canon D30 & then going to a Minolta A1 was a good thing for me. I guess it all has to do with what kinds of shots you are wanting to take.

Wildman Mar 8, 2005 7:44 PM

Whether image stabilization will help depends mostly upon which lens you're talking about and whether you shoot hand held or not. A faster lens is better in some ways than a slower lens with IS. A fast lens will allow stop action while a slower lens with IS only reduces the effects of camera shake IS is most important in longer lenses. I'll admit it works fine on my ES-S 17-85IS.

A monopod offers an inexpensive, tho' not a perfect alternative to IS.

Haven't heard how well the body mounted IS works on the Minolta. There are other issues when buying a DSLR besides stabilization. Consider primaliy the availability of lenses that will do the job for you.

cameranserai Mar 9, 2005 4:53 AM

If you shoot motor racing picture, as I do, then the combination of F2.8 at 300mm and F3.5 at 420 mm (allowing for the 1.5 factor)with the TC14E is still helped one heck of a lot by image stabilistation. And as I posted elsewhere, on safari in a truck bouncing over rough terrain it was almost essential. It all depends on the type of photography you do. For portraiture no use really, but for sports a boon. Don't knock it unless you have real experience of it in action.

I suggest you go here and look at the two photos at the bottom of the article to see the difference in action. You might then, like me, become a convert!

NHL Mar 9, 2005 8:22 AM

Like peripatetic here's my experience with IS: "they only stop camera shake they don't stop motion so they're of limited use for moving subjects" - ie IS and "sport" do not mix - Until someone post a picture of of an action @ 1/60s or below and prove otherwise I would be skeptical. The above link is again a picture of a 'static' still object...
I ski/snowboard with my 28-135 IS all the time. The IS is fantastic for shooting mountain ranges in late afternoon, but when it comes to skiers going downhill - forget it !!! :(

Here's some fast pictures with a lens with no IS in fact a lens IS must be turned off to create the same panning effect:

... and here's one @ 1/250s (no IS as well):

-> If one has to shoot at a minimum shutter speed anyway required for freezing an action then IS is not really effective anymore
- ie the benefit of shooting @ lower shutter speed is offset by the subject's motion blur :idea:

KENNETHD Mar 9, 2005 5:47 PM

Amazing! Thank you all very much for the range of replies. I've read them all at least twice. Having been unbearably itchy to get my wallet out and BUY something (something as in a new camera) one very important feature left for me to resolve is IS. I do love to shoot wildlife. I have my best luck at finding Elk, deer, mountain sheep, coyotes and sometimes wolves...just as the light is begining to fade, and often they are at the edge of a clearing, a few feet into the trees. And of course it's hard to get a still shot. So Many of my best chances turn out blurry and I wondered howa fast lense with a Dslr would compare to a higher zoom w/IS. Nearly all these shots are hand held. I really was hopng a bit more would be revealed after the last big camera show. I'm very interested in seeing the new Canon Rebel. Again my sincere's been an agonizingly long wait and I'm so close to deciding. Best regards,


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