goldstar46 wrote:
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Dear Blaster-34 ...
I am a Canon user and currently own the EOS R5... I too, have continued to struggle with the same question
Being the 'Geek' that I am, I decided to perform my own 'ad-hoc' test by doing the following...
1- Set my camera w/ my RF 100-500mm @ 500. setup in my residence office, point across the street
2- Tripod was a Mammer-Jammer $ 1,200/ Gitzo, carbon fiber, w/ a $ 350 Gembal head..
3- Set my shutter speed to 1/10 second, and using the display monitor on the back of the camera
4- I then 'focused' on an 'element' across the street @ 500mm and set AutoFocus 'Off'
5- At this point, I used the 'zoom' function of the camera to 'zoom' in 16x, to test this at extremes.
..... Yes, the above is effectively 8,000mm (500x16) but, after all, you want to see the results
With the above, after taking all 'hands-off' the equipment... one can see "NO movement" of the image.
..BUT, if you 'switch' "IS" on, and take 'hands-off' ... you will see distinct 'Image Drift' in the camera display
. Just saying... and that is only "MY TEST" for my purpose and consideration...
..The above are 'real life facts' and not just some 'theory' or 'guess' or unverified 3rd party information ???
...I do most of my work in landscapes... and after all, what can it hurt to turn off 'IS" if you are on a tripod??
As a result of the above, I have made the personal decision that when I use a tripod, me personally, I will turn off the "IS" as a matter of personal choice, and a 'extra measure' to guard against 'sensor drift'
I offer the above only as info... and to each his own...
...... I am not professing that is this the right way to do things or not the right way
Just information for consideration
Cheers
Goldstar46
George Veazey
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Thanks George, I do the same thing and turn off when on a tripod even though there is 5-Axis IBIS, maybe I should probably try an informal test and try and see for myself....Cheers