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I am confused! I use a Canon 500 mm f4 lens with 1.4 extender on my Canon 50 D. I use a tripod and Jobu Jr. mount. I've heard that I should turn the IS OFF when using the tripod and I've also heard it should be ON in mode 1. What's the BEST setup for shooting stationary birds and conversely BIF???
Darell,Quote:
Originally Posted by Darrell Riggins
The 50D has live view, correct? Turn on live view and 10x magnification and use the camera like you normally would, only alternating IS on and off. Can you see a difference on the screen? I believe the answer should be clear.
I am pretty sure you will find that if you are touching the camera, there will be a lot of vibration, whether the axes are locked tight or not. So if you are holding the camera and pressing the shutter button,
IS should help unless the shutter speed is quite fast (like 1/1500 second or faster). So at slower speed, IS will help. Above that it won't really help so would be fine to turn off, but in my experience is OK to leave on too. If you are locking down, use a cable release and mirror lockup, there is no need for IS on.
Roger
I you do Roger's test, consider using your remote release. If you do and you have IS on and the camera has been allowed to settle down, then when you first start the IS you'll see a noticeable shake that will quickly stabilize. I like to use my 10x live view for subjects that aren't moving. If I've got my remote release I'll leave the IS off, but if I'm touching the camera, then I turn IS on, but wait the fraction of a second needed for it to stop all shake.
