Phil Young said:I instantly know when I've forgotten to turn stabilization off. Images are always soft.
nickjohnwatson said:It's infuriating!
Phil Young said:Especially after a 15 minute exposure....
DannyDMR said:How about handheld in studio? On or off
This is a question that keeps going round and round my head. There is some information available, one from Canon on how IS works and some info on tripods:
http://cpn.canon-europe.com/content/education/technical/image_stabilization_lenses.do
Interesting results, chalk and cheese really.
I can't see any difference in the 24-105 samples but there are variables that could affect the 100-400 result.
Can I ask how the body/lens was mounted in both cases?
Did you do any tests using faster shutter speeds?
Excellent link.
It includes a list of lenses that require IS to be turned off when on a tripod.
EF28-135mm f/3.5-5.6 IS USM
EF75-300mm f/4-5.6 IS USM
EF100-400mm f/4.5-5.6L IS USM
EF300mm f/4L IS USM
I'm surprised at how short it is.
It is definitely incomplete.
I had a batch of 30s exposures ruined recently using the 70-200 f4 IS until I worked out the blur wasn't wind buffeting. As soon as I tuned off the IS the shots were pin sharp.