I was attempting to capture the full moon tonight using my Canon EOS R50 mounted on a tripod. I had a telephoto lens attached to the camera via a Canon adapter, as this lens was originally designed for my father’s Canon Digital Rebel and had an incompatible mount for the R50.
While zoomed in on the moon to fill the frame, I observed an unexpected behavior: the camera appeared to automatically zoom the image back out. I was under the impression that the camera itself lacked the capability to adjust the zoom setting, but the viewfinder clearly indicated a change in magnification
Update: In case it is important, the lens has image stabilization built in, but I have it turned off as it lets me set focus and recompose better.
zoom out a lot or a little? those lenses may have strong focus breathing
A lot - a moon mostly filling the frame to a moon in 1/9 of the frame
Hi, please consider editing the post title to briefly mention the camera model and the issue. This will help the people who might know the answer to find your post instead of skimming over it. :)
Something like “Canon EOS R50 is unexpectedly zooming back out”
Thanks for the hint. : ^ )
Not putting a single detail in the title is a bold move, Cotton
I guess we will see how that works for me? Thanks for the hint Redd : ^ )
In case it matters to the issue the lens marking reads: “Canon Zoom Lens EF 28-135 mm 1:3.5 - 5.6 IS”
