Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
10-16-2008, 10:41 AM   #1
New Member




Join Date: Aug 2008
Location: Mendocino County, California
Posts: 1
Lens Creep on 18-250

I recently purchased the DA 18-250 lens and immediately noticed the lens creep issue I have read about. After researching the subject I found a link on a Nikon site that suggested using "O-ring" to fix the problem on the Nikon 18-200. The idea is to place a large "O-ring" around the barrel just above the rubberized zoom adjuster. Where the zoom adjuster meets the body of the lens there is a very small gap, the idea is the "O-ring" covers that gap causing enough friction to keep the lens from creeping. After running all over town trying to find a large dia. O-ring, I finally found what I was looking for at a tractor supply store. The one that fit best was what they called a #37. It DOES THE JOB! NO more lens creep. The added friction does make adjusting the lens a bit stiff but I can deal with that. However, I do have a concern. Will the added friction have an effect on the auto focus motor? It seems to work just fine now but what will the long term effects of the added stress have on the motor??

10-16-2008, 10:56 AM   #2
Veteran Member
Venturi's Avatar

Join Date: Mar 2008
Location: Tulsa, OK
Photos: Gallery
Posts: 2,636
On first glance, I can't see how putting an o-ring there at the seam of the front edge zoom ring and the barrel would impact the AF as long as it didn't roll up onto the focus ring.

Can you post a pic?

And welcome to the forums, btw.
10-16-2008, 02:11 PM   #3
Pentaxian
Class A's Avatar

Join Date: Aug 2008
Location: Wellington, New Zealand
Posts: 11,250
I also cannot see how your o-ring could possibly affect the AF.

I'd be concernced, though, that the friction will make cause the o-ring to emit tiny particles of rubber which could make it into the lens through the gap.
10-16-2008, 05:50 PM   #4
Veteran Member
kristoffon's Avatar

Join Date: Aug 2008
Location: Brazil
Posts: 532
I have that lens and never thought of that as a problem. If I point it down for whatever reason I either lock it or, if it`s to shoot something, keep my hand on the zoom ring, which I already would do in the normal handling of the camera and lens.

Seriously, I'd never put a rubber ring blocking my lens' movements. I'm sure it'll do some damage in the long run.

10-16-2008, 11:09 PM   #5
Veteran Member
krypticide's Avatar

Join Date: Dec 2007
Photos: Gallery
Posts: 1,079
I put a wide rubber band instead of an o-ring, works just fine except it can shift sometimes if my hand moves it. It will eventually break down under UV light from the sun, but I've had it on my camera for months now and it's still mostly in good condition.
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
friction, gap, idea, k-mount, lens, nikon, pentax lens, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Zoom creep Russell-Evans Pentax SLR Lens Discussion 14 06-01-2011 09:35 AM
creep problem with pentax 18-250 dstar Pentax SLR Lens Discussion 1 06-25-2010 01:17 PM
How bad is the zoom creep on the Sigma 17-70 f/2.8-4.5 DC Macro? juu Pentax SLR Lens Discussion 15 11-07-2009 03:34 PM
Rack & Pinion Focus Creep dadipentak Pentax SLR Lens Discussion 15 11-05-2009 04:57 PM
Voigtlander 125 and lens creep if used vertically? lc_toronto Pentax SLR Lens Discussion 1 06-07-2009 11:34 AM



All times are GMT -7. The time now is 05:09 PM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top