11-01-2014 06:18 AM
I have a 100-300 Ultrasonic Lens that I want to use in a newer Rebel DSLR camera. It was well cared for when I used it, and has since been kept in a clean, dry place. It looks ok when I inspect it, but I'm wondering if there is anything else I need to inspect or do. Of course I could just use it and see how it goes (waiting for new camera - thought I would ask now).
Thanks!
11-01-2014 09:12 AM
I would suggest taking both caps of and look through it while holding it up to a light, just to be sure no fungus has developed. I live in northeast US, have air conditioning in the summer, and still had fungus deelop in two of my older lenses.
11-01-2014 03:06 PM
Go use it. It will be fine. ![]()
05/13/2026: New firmware updates are available.
EOS R5 Mark II - Version 1.3.0
EOS R6 Mark II - Version 1.7.0
03/17/2026: New firmware updates are available.
SELPHY CP1500 - Version 1.0.7.0
01/20/2026: New firmware updates are available.
10/15/2025: New firmware updates are available.
Speedlite EL-5 - Version 1.2.0
Speedlite EL-1 - Version 1.1.0
Speedlite Transmitter ST-E10 - Version 1.2.0
Canon U.S.A Inc. All Rights Reserved. Reproduction in whole or part without permission is prohibited.