I recently noticed some of my shots are underexposed. I am using the Canon 5D Mk III and several different lenses has anyone else noticed this same problem. Thank you in advance for any help.
I recently noticed some of my shots are underexposed. I am using the Canon 5D Mk III and several different lenses has anyone else noticed this same problem. Thank you in advance for any help.
You might want to look into the exposure mode as well as which lenses you are using, to see if you can narrow it down. Your vague issue doesn't even give a starting point.
Exposure is all about light, to much and it is over exposed to little and it is under exposed. Think f-stop and ISO
What metering mode is your camera set to and shooting mode, i.e. Program, Manual etc.....Overall, I find the 'matrix' meter a bit erratic on this camera and several prior models. I believe if you shoot in full manual mode, this will resolve the problem.
Only if he knows how to meter. If he opens an image in the Canon software, he should be able to check the focus points, and if his metering is tied to that, it could shed some light on the issue. That's a tool I should probably use more often.
If one cannot figure out how to use a camera in manual mode, then one cannot ask these sorts of questions! I had a lens that started sticking-the aperture got sticky, so the exposures were erratic. EOS lenses are so electronic....really nothing one can do to check. And lastly, you probably already know this, but the constant aperture lenses are notoriously NOT constant. Any lens that racks in and out, like the popular 24-105, loses around a 1/3 stop of light at full extension. My 100mm Macro is worse....so much light loss as you get close. It's physics! This is why serious videographers are navigating towards the much more expensive video lenses. The Zeiss and now, the Canon Video lenses remain truly constant as the focal lengths are changing. That is why they are so expensive! I shot 4x5 for many years and in that world, you learn how all this stuff actually works, instead of dialing in a set of software commands. Light loss is a very real issue in that world. The closer you get.....wow...the f stops start multiplying like crazy, doubling doubling doubling....