https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/EOS-RP-Video-recording-dims-for-a-few-seconds-then-brightens/m-p/575160#M138289 <P>Hi all, I know almost nothing about cameras and videography. On my EOS RP I'm shooting in movie manual mode. I'm seeing some odd behavior and wondering if it rings a bell for anyone:</P><P>I noticed that in some recordings (maybe 1 out of 4?) the entire image will dim for a few seconds, then brighten again back to normal -- sometimes more than once in a single recording. For example, I was making a little movie with friends in my apartment, and in a 1.5 minute shot, in each of six takes, the entire image would darken about 20-30% for 2-3 seconds, then brighten again back to normal. It happened twice in each take, about 15-20 seconds in and again about 60 seconds in, with small variations. I didn't notice the dimming in the viewfinder because I was watching the scene, but I saw it in the recording files after.</P><P>Because the entire image dims uniformly, I don't suspect an issue with my lights. And it's at similar times in each shot, so it feels like a camera software thing but I'm not sure. I've checked that obvious culprits are off, like auto exposure, auto white balance, and auto focus.</P><P>The last thing I can think of is it tends to happen in longer-distance shots like 8-10 feet from the subjects, with an aperture like f/8 to f/10, shutter 1/50. Not sure if that's relevant.</P><P>Has anyone seen this behavior before? Let me know if I should give more info, thanks.</P> Fri, 14 Nov 2025 23:03:02 GMT jovial6 2025-11-14T23:03:02Z https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/EOS-RP-Video-recording-dims-for-a-few-seconds-then-brightens/m-p/575160#M138289 <P>Hi all, I know almost nothing about cameras and videography. On my EOS RP I'm shooting in movie manual mode. I'm seeing some odd behavior and wondering if it rings a bell for anyone:</P><P>I noticed that in some recordings (maybe 1 out of 4?) the entire image will dim for a few seconds, then brighten again back to normal -- sometimes more than once in a single recording. For example, I was making a little movie with friends in my apartment, and in a 1.5 minute shot, in each of six takes, the entire image would darken about 20-30% for 2-3 seconds, then brighten again back to normal. It happened twice in each take, about 15-20 seconds in and again about 60 seconds in, with small variations. I didn't notice the dimming in the viewfinder because I was watching the scene, but I saw it in the recording files after.</P><P>Because the entire image dims uniformly, I don't suspect an issue with my lights. And it's at similar times in each shot, so it feels like a camera software thing but I'm not sure. I've checked that obvious culprits are off, like auto exposure, auto white balance, and auto focus.</P><P>The last thing I can think of is it tends to happen in longer-distance shots like 8-10 feet from the subjects, with an aperture like f/8 to f/10, shutter 1/50. Not sure if that's relevant.</P><P>Has anyone seen this behavior before? Let me know if I should give more info, thanks.</P> Fri, 14 Nov 2025 23:03:02 GMT https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/EOS-RP-Video-recording-dims-for-a-few-seconds-then-brightens/m-p/575160#M138289 jovial6 2025-11-14T23:03:02Z https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/EOS-RP-Video-recording-dims-for-a-few-seconds-then-brightens/m-p/575177#M138292 <P>jovial6,</P> <P>I'm not sure, but it almost sounds like something is passing between you and the light source.</P> <P>Try taking your camera outside on a nice, bright, sunny day, take a similar video, and see if the same thing happens.</P> <P>Steve Thomas</P> Sat, 15 Nov 2025 01:16:32 GMT https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/EOS-RP-Video-recording-dims-for-a-few-seconds-then-brightens/m-p/575177#M138292 stevet1 2025-11-15T01:16:32Z