Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
09-19-2013, 01:46 AM   #1
Veteran Member
nanhi's Avatar

Join Date: May 2009
Location: Bangalore, India
Photos: Gallery | Albums
Posts: 463
Eye Piece Rubber Deterioration

The Eye Piece Rubber deteriorates fast as it comes in touch with facial oils very frequently. Some climate and weather condition makes the rubber rot faster too. Here is what I do to extend its life:-
a) gently push the eyepiece up till it dislodges from the groove on the eyepiece body on the camera.
b) remove the tiny black screws (2 nos) and keep it in a coffee mug so that it is not lost.
c) the rubber eye piece is sandwiched between two plastic plates. Remove the plastic plates.
d) now coat the rubber profusely with talcum powder. Make sure you have enough of the powder in the grooves. Shake out the excess talcum powder, but do not clean it out with a cloth, as we want a liberal coating on the rubber.
e) put the plastic plates back in so that the rubber eyepiece is sandwiched in between the plates. You can't go wrong - it is so simple.
f) put the screws back. Don't over tighten as it screws into plastic, a much softer material.
g) line it up in the grooves on the eyepiece body and push down gently till it bottoms.

Link to the photo:

NOTES: i) all cameras use JIS (Japanese Industrial Standard) screws and threads. The JIS screws look a lot like Philips cross head screws but they
are not. Try and use a JIS Screw Driver as shown in the photo. A Philips screw driver will work but be careful and apply pressure firmly.
ii) some folks prefer rubber and plastic conditioners available in a spray can. These are silicone based rubber conditioners that give it a
new like shine / gloss.

09-19-2013, 08:23 AM   #2

Join Date: Mar 2012
Location: Perrineville, NJ
Posts: 1,373
I know that talcum powder can be mixed with silicone grease and used on things like rubber car door seals to extend their lifetime. The silicone keeps the rubber from drying out, while the talc reduces friction with the door.

But do you know if the talc by itself will really extend the life of the eyepiece? It would seem to maybe help absorb surface oils for a while, but then it would just kind of sit there, and maybe worse, spread dust around in your camera bag. I don't know.
09-19-2013, 05:39 PM   #3
Site Supporter
Site Supporter
Ex Finn.'s Avatar

Join Date: Nov 2007
Location: Southern Maryland. Espoo. Kouvola.
Photos: Gallery | Albums
Posts: 7,924
That is a very fine pollics JIS screwdriver.
I am not sure if I would be so concerned about the life of the rubber bits. By the time they deteriorate, the semi-conductors will most likely be done also. Just my 2C worth.


  • 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!
eye, eyepiece, jis, piece, plastic, plates, powder, rubber, screw, screws, tripod
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
Rubber piece cover electrical contact in k10d/k20d hoanpham Pentax DSLR Discussion 7 11-06-2012 01:55 PM
dual eye piece attachment? mee Pentax Camera and Field Accessories 4 06-13-2012 09:34 PM
Pentax zoom eye piece Rnovo Pentax Camera and Field Accessories 7 03-23-2012 04:31 PM
Rubber eye piece for k10d lost. Help? ronald_durst Pentax DSLR Discussion 2 01-12-2009 08:21 PM

All times are GMT -7. The time now is 08:33 AM. | See also:, 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?
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]