FORUMS: list search recent posts

Image stabilization - why and when is it important?

COW Forums : Canon EOS DSLR

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
Bob Cole
Image stabilization - why and when is it important?
on Aug 28, 2011 at 12:14:59 am

I read recently (in a blog post by Philip Bloom) that IS is very important for videography using DSLRs, particularly for longer focal lengths.

Why is this so? Does it have anything to do with moire?


Return to posts index

Stephen Kampff
Re: Image stabilization - why and when is it important?
on Aug 29, 2011 at 3:26:36 pm

When you zoom in, the movement of the handheld camera becomes more apparent.
I find, even if I only zoom in a bit, IS is really needed.

If you're willing to sacrifice a really shallow DOF, for some smoother camera work; Shoot as wide as you can. Of course that doesn't apply to everything but it's great if you want the handheld look without ruining your shot.


Return to posts index

Brent Dunn
Re: Image stabilization - why and when is it important?
on Aug 29, 2011 at 5:36:17 pm

If you are on a tripod, you don't need it. Handheld, you do. If you are zoomed in with any camera, your camera will magnify any shakes or bumps to the camera. IS limits this.


Moire happens when you shoot images with lined objects, such as, window blinds, grates, stripes, brick patterns, etc. It is a problem with all DSLR's and has nothing to do with IS.

Brent Dunn
Owner / Director / Editor
DunnRight Films
DunnRight Video.com
Video Marketing Toolbox.net

Sony EX-1,
Canon 5D Mark II
Canon 7D
Mac Pro Tower, Quad Core,
with Final Cut Studio

HP i7 Quad laptop
Adobe CS-5 Production Suite





Return to posts index


Bob Cole
Re: Image stabilization - why and when is it important?
on Aug 31, 2011 at 3:07:34 pm

I thought there may be an impact on moire generation, either actual or perceived. For example, image stabilization may make moire patterns "livelier" and therefore more obvious.


Return to posts index

Bob Cole
Re: Image stabilization - why and when is it important?
on Aug 31, 2011 at 7:55:46 pm

I meant, of course, that my guess is that IS would tend to REDUCE apparent moire.


Return to posts index

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
© 2017 CreativeCOW.net All Rights Reserved
[TOP]