topic Re: 5D Mark IV bracket to 5 shots, sequence: 0- - + +, with 1/3 EV increments in EOS DSLR & Mirrorless Cameras

5D Mark IV bracket to 5 shots, sequence: 0- - + +, with 1/3 EV increments

nipo535darly — Thu, 17 Apr 2025 03:51:54 GMT

Hey all,

I've been doing AEB (Auto Exposure Bracketing) on my Canon 5D Mark IV for years and never had this happen. I shoot in Av mode, typically with settings like f/8.0, ISO 100, and a 2-second timer. I set the bracket to 5 shots, sequence: 0- - + +, with 1/3 EV increments. So the range should go: -2, -1, 0, +1, +2.

Here's the issue: I'm getting the underexposed shots correctly, but all my overexposed shots are coming out the same — stuck at 30 seconds shutter speed. They're not increasing brightness; they're just capped at the max shutter length. I tried this in multiple lighting conditions (including some pretty dark rooms), and it keeps happening.

This has never been a problem before, and I feel like I'm missing something obvious. I even tried switching to 7 exposures, same deal.

Is there a setting I might’ve accidentally changed? Or is this just a limitation I’m hitting because of the lighting/shutter cap? Appreciate any suggestions!

Best Regard,

Nipo

Re: 5D Mark IV bracket to 5 shots, sequence: 0- - + +, with 1/3 EV increments

stevet1 — Thu, 17 Apr 2025 11:48:13 GMT

Nipo,

I'm not an expert, so I can't speak with any real authority, but two thoughts come to mind:

1) If you want to exceed 30 seconds, don't you have to be in Manual and go into Bulb Mode?

2) Do you have a maximum set for your ISO?

Steve Thomas

Re: 5D Mark IV bracket to 5 shots, sequence: 0- - + +, with 1/3 EV increments

AndyMc — Thu, 17 Apr 2025 14:00:42 GMT

Steve is correct. The EOS 5D Mark IV (and any other Canon camera) will only go out to 30" for timed exposures. Anything longer will require Bulb mode. Any time I need to use something longer than 30" I either use a remote, or some other kind of external controller.