camera mode (Page 2): IS does seem to slow focus acquisition so I don't use it much for birds. As a matter of fact my best bird lens doesn't have IS. I use a fairly high shutter speed...

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Nov 20, 2014 07:16:51 #

Gary Truchelut Loc: Coldspring, TX

IS does seem to slow focus acquisition so I don't use it much for birds. As a matter of fact my best bird lens doesn't have IS. I use a fairly high shutter speed to compensate for motion.

Nov 20, 2014 07:48:06 #

dugole Loc: Matawan, New Jersey

Delderby wrote:

"no IS" - is that when your using a tripod? or is there another good reason? (I rarely shoot birds) :)

I've just read Gene's post - didn't really think about that before.

Gene is pretty much correct. IS conflicts with the panning motion - in a sense panning movement is interpreted as camera shake.

Nov 20, 2014 08:24:05 #

dsmeltz Loc: Philadelphia

Delderby wrote:

"no IS" - is that when your using a tripod? or is there another good reason? (I rarely shoot birds) :)

I've just read Gene's post - didn't really think about that before.

At the necessary shutter speeds it is not really needed and adds another process that slows you down.

Nov 20, 2014 08:25:47 #

Delderby Loc: Derby UK

dsmeltz wrote:

At the necessary shutter speeds it is not really needed and adds another process that slows you down.

Understood - thanks :-)

Nov 20, 2014 08:27:25 #

Delderby Loc: Derby UK

Gary Truchelut wrote:

IS does seem to slow focus acquisition so I don't use it much for birds. As a matter of fact my best bird lens doesn't have IS. I use a fairly high shutter speed to compensate for motion.

Thanks :-)

Nov 20, 2014 08:28:17 #

Delderby Loc: Derby UK

dugole wrote:

Gene is pretty much correct. IS conflicts with the panning motion - in a sense panning movement is interpreted as camera shake.

Thanks :-)

Nov 20, 2014 09:05:27 #

Gene51 Loc: Yonkers, NY, now in LSD (LowerSlowerDelaware)

Delderby wrote:

"no IS" - is that when your using a tripod? or is there another good reason? (I rarely shoot birds) :)

I've just read Gene's post - didn't really think about that before.

I would leave IS off for anything that is moving - on or off the tripod. YOu will be fighting your lens otherwise - you try to compose so you move the camera, but the camera doesn't know what you are doing - so it tries to compensate - and so it goes. Besides, IS is only effective at lower shutter speeds and with shorter focal lengths and non-moving subjects.

Nov 20, 2014 10:03:07 #

Delderby Loc: Derby UK

Gene51 wrote:

I shall switch IS off and see how I get on - keeping shutter speed up, of course! :-)

Nov 20, 2014 10:26:10 #