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Canon EFS 15-85mm f3.5-5.6 … Is it fixable?
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Aug 15, 2020 18:09:13   #
Mark1948
 
The lenses otherwise okay but when carrying the camera via strap from my shoulder with the lens facing down, the weight of the front of the lens causes the zoom to slide out from 15-85mm by itself.

My other zooms 70/300 and 100/400 do not do that.

Does anyone happen to know if that problem can or should be fixed?

Thanks for all responses,

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Aug 15, 2020 19:07:25   #
cedymock Loc: Irmo, South Carolina
 
Mark1948 wrote:
The lenses otherwise okay but when carrying the camera via strap from my shoulder with the lens facing down, the weight of the front of the lens causes the zoom to slide out from 15-85mm by itself.

My other zooms 70/300 and 100/400 do not do that.

Does anyone happen to know if that problem can or should be fixed?

Thanks for all responses,


Lens drift can be fixed have heard it is costly however a wide rubber band across the zoom will work they make some for that purpose.

https://www.bhphotovideo.com/c/product/834032-REG/LENSBAND_628586557949_Lens_Band_Red.html

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Aug 15, 2020 20:05:19   #
User ID
 
Mine does that, and the arrangement of the controls is not really amenable to the rubber band trick. Doesn’t bother me too much cuz I never wonder around with a camera out of the bag. It’s such a handy lens otherwise that, for me, it’s a keeper “warts and all”.

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Aug 15, 2020 21:13:39   #
CHG_CANON Loc: the Windy City
 
Lens Band is the solution. Canon's newer lenses now include a lock or a tension control, something missing from nearly all their zooms prior to about 2012.

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Aug 15, 2020 21:18:49   #
usnret Loc: Woodhull Il
 
Mark1948 wrote:
The lenses otherwise okay but when carrying the camera via strap from my shoulder with the lens facing down, the weight of the front of the lens causes the zoom to slide out from 15-85mm by itself.

My other zooms 70/300 and 100/400 do not do that.

Does anyone happen to know if that problem can or should be fixed?

Thanks for all responses,


How fast does it drift? My 15-85 drifts a wee bit too but I don't worry much about it. I always end up changing the focal length for the next shot anyway.

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Aug 15, 2020 22:00:04   #
robertjerl Loc: Corona, California
 
Of course it is fixable, anything is fixable if you throw enough money and parts at it. "I have my Grandfather's Axe, my Dad replaced the haft and I replaced the head. I have my Grandfather's Axe."

My 24-105L f/4 does the same thing, I just live with it. The images it produces are still just as good.

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Aug 15, 2020 23:34:31   #
CHG_CANON Loc: the Windy City
 
robertjerl wrote:
Of course it is fixable, anything is fixable if you throw enough money and parts at it. "I have my Grandfather's Axe, my Dad replaced the haft and I replaced the head. I have my Grandfather's Axe."

My 24-105L f/4 does the same thing, I just live with it. The images it produces are still just as good.


The problem with the 'flopping' aspect of this lens and all the Canon zoom lenses with this poor design is the risk of breakage internally, a failure the original 24-105L is particularly well known to encounter. I've used the LensBand on a few Canon zooms. Careful placement of the band position and it becomes less annoying, until you replace the lens with one that includes a lock.

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Aug 15, 2020 23:38:34   #
robertjerl Loc: Corona, California
 
CHG_CANON wrote:
The problem with the 'flopping' aspect of this lens and all the Canon zoom lenses with this poor design is the risk of breakage internally, a failure the original 24-105L is particularly well known to encounter. I've used the LensBand on a few Canon zooms. Careful placement of the band position and it becomes less annoying, until you replace the lens with one that includes a lock.


Well I seldom carry any camera just hanging, I usually cradle the camera and lens in my left arm with the strap around my neck. I only have it happen when I need both hands for something let the camera hang while I do whatever. I don't walk around that way.

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Aug 16, 2020 05:40:08   #
John N Loc: HP14 3QF Stokenchurch, UK
 
My lens has done that from day 1. Only fault with it. They should have put a lock on it (like they have with the 24-105 stm that came with my 6D mkII).
Tried some home made versions of rubber bands but never really liked them.

I cut up an old innertubeand that worked, and made a bespoke band to go over the lens and camera body without to much tension - but in the end I just learned to live with it.

If you try this, cut around a 2' section out of the circumference of the tube and slit longitudinally. Wash out all the chalk dust and then glue the ends once you've decided exactly how long it needs to be. I'd measure mine if I could find it - like I said, I just learned to live with it.

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Aug 16, 2020 07:50:12   #
Architect1776 Loc: In my mind
 
robertjerl wrote:
Of course it is fixable, anything is fixable if you throw enough money and parts at it. "I have my Grandfather's Axe, my Dad replaced the haft and I replaced the head. I have my Grandfather's Axe."

My 24-105L f/4 does the same thing, I just live with it. The images it produces are still just as good.


Same with my 24-105L as well.
NEVER gave it a second thought until now.

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Aug 16, 2020 08:41:32   #
User ID
 
CHG_CANON wrote:
Lens Band is the solution. Canon's newer lenses now include a lock or a tension control, something missing from nearly all their zooms prior to about 2012.


The lens band is great on several of my lenses but it can’t work magic on this one. There is no nonmoving section of barrel forward of the zoom ring and there’s no space between the zoom ring and the focusing ring right behind it.

If the the band is applied anyway, it WILL cure the “carry about creep” but getting the band clear of both control rings (so the lens is usable) is so awkward that it’s about the same delay as pulling the camera (with no lens band) out of its bag ... and acoarst the bagged camera is less at risk than carrying it naked in a strap.

This particular lens is an unfortunate special case.

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Aug 16, 2020 08:52:00   #
User ID
 
usnret wrote:
How fast does it drift? My 15-85 drifts a wee bit too but I don't worry much about it. I always end up changing the focal length for the next shot anyway.


Yours must be fairly new. Mine is not an old beater but it even creeps a bit when aimed slightly upward during use. This is only a problem when using MF but I use MF fairly often.

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Aug 16, 2020 11:58:19   #
Mark1948
 
Thanks all... decided to write it of to my OCD, a side effects of excessive GAS

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Aug 16, 2020 12:04:15   #
John N Loc: HP14 3QF Stokenchurch, UK
 
Come to think of it, all my lenses with locks only lock in one position. Surely it can't be too hard to put a light friction lock operable at any setting - or am I missing something?

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Aug 16, 2020 12:36:28   #
Architect1776 Loc: In my mind
 
John N wrote:
Come to think of it, all my lenses with locks only lock in one position. Surely it can't be too hard to put a light friction lock operable at any setting - or am I missing something?


Canon 100-400mm II you can lock in any position or set the amount of friction in any position.

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