Canon 28-135 f/3.5-5.6 IS USM

[whiteford]

Hi, after spending much time on this forum and other reveiws, I decided to get the 28-135 lens, and it arrived today. I have just one question, it says not to use the image stabilizer on a tripod, was wandering why this is. Also just purchased the EOS Rebel XT to put it on.

Thanks, Dave.:lol:

[MrChad]

It gets confused and activates IS on the tripod b/c it's too still for the lens. I only use IS on cheap tri pods if it's windy out.

[Longwatcher]

As mentioned it gets confused on a tripod, It assumes movement is there even if it isn't, so the picture will tend to slip with IS on.
Also it places a lot of extra wear on the IS motor for no good reason.
Lastly, while the IS is on, you lose just a touch of quality, so if not needed, like while on a tripod turn it off. If you need though, it sure comes in handy.

You will also find it works more noticeably at the longer end.

So far only a few IS lenses (such as 70-200/2.8L IS) are smart enough to know they are on a tripod.

[xuxu1]

So far only a few IS lenses (such as 70-200/2.8L IS) are smart enough to know they are on a tripod.

TRUE... :)

but.... AFAIK there are a lot of "smart" photographers which don´t need that option. :cool:

As said.... they themselves are "smart" :rolleyes: :p

ED

[Jesper]

Lastly, while the IS is on, you lose just a touch of quality, so if not needed, like while on a tripod turn it off. If you need though, it sure comes in handy.Really? I think that the idea that you loose a little bit of quality when IS is on, is only just an idea.

One more reason to leave IS off: it costs extra battery power.

[Longwatcher]

Really? I think that the idea that you loose a little bit of quality when IS is on, is only just an idea.

One more reason to leave IS off: it costs extra battery power.

You have to take into account I am a former imagery analyst and even imperceptable quality losses are a bad thing to me. No matter how hard they try a few (2 or 3) photons (out of several million) will go in the wrong direction as a result of the IS being on and doing its thing. This of course ignores the fact the even without IS a few photons will stray around any lens, just will get a few more with it on then without it on. And only a scientific measuring device is likely to see the difference. But it is there none the less. 8)

I like your justification better though, :)

[Jetmech1]

I have the lens. I really like it. The IS seems to work well.

[txdude35]

One more reason to leave IS off: it costs extra battery power.[/QUOTE]

If you're that worried about battery power, keep a spare handy. BTW- why buy the lens if you're not going to use the IS??
I've had the lens for a couple of weeks, and love it.

[steibeldj]

I have owned this lens for about two years. It is a great lens. Nice range of zoom and great clarity. I just got the 24-70L because I wanted better shots in low light indoor sans flash. Turns out this thing is heavy! Also I can see taking the 28-135mm as a walk around lens without worrying about dropping it. I will not give the lens up.

BTW, make sure to give the IS a second to kick in, or your shots will be blurry. At first I thought it was point and shoot, but it isn't.

[whiteford]

Thanks Guy's for all your input. I had a chance to go out and try this lens out, all I can say is Fantastic!, this is my first quality lens, up from the supplied kit lens and I can't beleive the improvement. The IS is a real plus for me, and the images came out really sharp and in focus with all shots being handheld.
Also the new EOS Rebel XT is a real winner, now I can take the 20D off my wish list.

Dave:lol: