Canon EF 100-400mm f4.5-5.6 IS L USM functionality
Dec 7, 2017 10:02:41 #
tazrackless
Loc: Dunedin, FL
Just purchased the above used lens on eBay. Moving from 100 to 400, the lens doesn’t slide smoothly. Has anyone had experience with this lens to confirm my concern?
Dec 7, 2017 10:08:22 #
tazrackless wrote:
Just purchased the above used lens on eBay. Moving from 100 to 400, the lens doesn’t slide smoothly. Has anyone had experience with this lens to confirm my concern?
You have two choices, one send it back to seller or send it to Canon for repair.
Dec 7, 2017 10:41:01 #
I believe there is a friction setting that can be adjusted on the lens. It rotates and one way is tighter and the other way loosens it. Have you tried that?
Dec 7, 2017 10:50:03 #
Dec 7, 2017 10:51:03 #
tazrackless
Loc: Dunedin, FL
I would have expected this zoom lens to slide very smoothly when I’m going between 100 and 400. Is that the type of functionality you have experienced with this zoom lens?
Dec 7, 2017 10:53:43 #
tazrackless
Loc: Dunedin, FL
Regarding friction, I have not seen any difference when adjusting the dial from smooth to tight.
Dec 7, 2017 10:57:14 #
tazrackless
Loc: Dunedin, FL
Don’t know how to respond to “version“. Can you provide more information where I could find this information? Thanks.
Dec 7, 2017 10:58:10 #
Dec 7, 2017 11:00:52 #
tazrackless
Loc: Dunedin, FL
I would say it is a push – pull Since the only way I can move from 100 to 400 and in between is manually.
Dec 7, 2017 11:07:20 #
yds0066 wrote:
I believe there is a friction setting that can be adjusted on the lens. It rotates and one way is tighter and the other way loosens it. Have you tried that?
Definitely check this as the tension adjustment ring is a feature of this lens.
Dec 7, 2017 11:10:48 #
tazrackless
Loc: Dunedin, FL
It appears the issue with this lens is the tension adjustment ring is not working properly. I want to express my appreciation for all the comments that helped me to focus on the specific nuances of this lens. I know how to proceed.
Dec 7, 2017 11:26:02 #
That would be a first generation/version, generation II as a rotating collar for the zoom and next to it a ´´tension’´ collar to make it a little more stiff or smooth
Dec 7, 2017 11:40:56 #
tazrackless
Loc: Dunedin, FL
Regarding the version, thanks for clarifying the difference. I’m learning something new every day.
Dec 7, 2017 11:44:03 #
tazrackless wrote:
Regarding the version, thanks for clarifying the difference. I’m learning something new every day.
So what are you going to do, is the tension ring afoul or Lens barrel misaligned ?
Dec 7, 2017 12:02:18 #
tazrackless
Loc: Dunedin, FL
Tension ring is faulty. Will work to have the lens returned and find a high-quality replacement.
If you want to reply, then register here. Registration is free and your account is created instantly, so you can post right away.