GWBELL345 wrote:
I have been reading about lens calibration and have watched a video of the technique. I have not yet tried calibration yet. My question is is I calibrate my principal lens, a Tamron SP 24-70 mm F2.8 Di VC USD G2, on my camera, Canon 5D IV, if I change to another lens, such as a Tamron SP 70-200 mm F2.8 Di VC USD G2, will that lens be affected by the camera calibration of the first lens? Does the camera hold in its memory calibration data for each lens?
Yes my Sonys A77 and A99 Both holds their memory. I think the camera knows the serial number of the lens as I have two of the same lens. each one has a different calibration number. When I put the lens on I have checked and the number changes to the correct number for that lens. I have over 30 Minolta A-mount lenses in addition to my Sony lenses never a problem. I have only calibrated 7 out of the 30 some Minolta.I have also tried a few Tamron and Sigma all work well. I have a record of the serial numbers, settings and the date I calibrated each lens. Anytime I put a lens on either camera that I haven't used for a while. I check the calibration number and it's always correct. I will say that there is a different number from one camera to the other on a few of the lenses. There have been a few lenses that after calibration didn't seem right. I had to re-calibrate them and I got a different number the second time. I will say that calibrating a 300 or 400MM zoom lens can be a pain when you place the target 50 times the focal length away. It takes a bit of fooling around and a few shots to read the target using a wide open aperture. Prime lenses on the other hand are quick and easy. Good Luck.