digital paradise wrote in post #19152893
Currently I'm not thrilled with the combination of IBIS/IS and my 100-500 for panning/tracking. I must admit I did not get out as much as I had liked to. Had a bit of a family medical emergency that pretty much wiped out a good portion of September and October. All the good birds are now gone and the weather has gone South so I won't get a lot of testing in. I don't mind shooting in cold weather but I hate testing in cold weather. Can't travel this winter because of COVID and that is where I get a lot of shooting in.
The IBIS and IS combo seems a little wonky. Great for stills. Next time I get out I'm going to shut the IS off. I have never shot without IS. I have read at Fred Miranda that Canon is aware and there will be a FW update? I'm not really sure about that as it came from one source. I'm hoping there is an update to be disengage IBIS and keep the IS running, which a few top birders have also stated at FM.
Up to post #47 are with the R. The rest are with the R5. I finally got a chance to go back to my Pelican spot. I would have liked to do an apples to apples comparison but they were gone.
https://photography-on-the.net …/showthread.php?t=1517173I have yet to put my RF24-105 on the R5. I was going to use that lens on R exclusively but I'll get around to doing that.
Are you talking adapted EF lenses here, or RF lenses? I have no RF lenses so far, and I have not been thrilled with either pure IBIS, or IS + IBIS with the R5 and EF-mount lenses, except that IBIS seems quite useful with manual lenses with no communication when the lenses are very long. I tried a 150-600 zoom with a taped 12mm tube to break communication, at 500mm x 2x, and dialed in 1000mm of IBIS correction, and got good results at 1/100s. With the 400/4 DO II at 800mm, it seems OK. Whenever I use short focal lengths, however, it is very disappointing, and almost seems like the R5 is not moving the sensor at all until it detects perhaps 2 pixels worth of correction have been warranted, and then jumps that much in a quantum motion. This results in ghosting. I am not sure that IBIS is helping EF-mount IS lenses much at all (especially shorter focal lengths), when both are used, and may actually be making matters worse, hence, I would welcome the ability to turn IBIS off when IS is on, whether the apparent quantum jumping is corrected in firmware for EF lenses or not.