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10year old pentax 8x24 PCF G very stiff focus

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  • Derek Lyon Dec 11, 2012

    I ment UCF G, the focus wheel is almost unmovable, how can I get it to move

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  • Master
  • 579 Answers

You cold try lubing it with the drip down method, squirt penetrating oil in the focus rack and hold so it flows into rack. They used a thick grease for damping, you may try heating it in an oven up to 130F for 5 minutes (or leave in a hot car) to soften grease and then actuating the focus to get the hardened grease back into the helix.

Posted on Aug 18, 2015

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Posted on Jan 02, 2017

  • 73 Answers

SOURCE: Double Vision Pentax 10x50 PCF III

If you have double vision it is out of collimation (alignment of the optical axis). You need to send this to the manufacturer for repair.

Posted on Jul 31, 2009

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I got a bino set Pentax 10X50 PCF WPII the right eyepiece came off. Can you fix? Thanks John


Fixya is not a repair facility. Contact your local optical repair workshop, or Pentax direct.

Nov 15, 2016 | Pentax Optics

1 Answer

How to mount Minolta AF 28-80/3.5-5.6 on pentax


Unfortunately, it is not possible to mount Minolta lenses on a Pentax K mount camera and retain either auto-focus, metering, or the ability to focus at infinity.
The reason for the loss of the ability to focus at infinity is because the distance from the mount to where the image forms on a Minolat lens is 43mm, whereas on a Pentax it is 46mm, so the Minolta lens glass would need to be 2mm into the body of the Pentax camera in order for the image to form on the sensor (i.e. have a clear image that is in focus).
The only solution to this is to purchase an adapter with an optical element such as this: http://photo-adapter-llc.amazonwebstore.com/Zykkor-Minolta-MD-Lens-to-Pentax/M/B004PB8142.htm?traffic_src=froogle&utm_medium=CSE&utm_source=froogle This will allow you to focus at infinity, however you will have to use stop down metering and manual focus, as the electrical contacts will not connect. Also, you can expect a slight loss of image quality when using an adapter.
I personally have a few Minolta lenses that I have wanted to use on my Pentax, so I understand your pain. It is a shame they don't work better.
Thank you for using FixYa!

Apr 18, 2010 | Pentax *ist DL Digital Camera

1 Answer

Stiff focus wheel


The number one rule is to never use oil on a binocular!!
I suspect that the multistart thread on the focus arm carrier, which is internal, has become gunged up. This is not an easy repair for a beginner. The rubber has to be removed from the body of the binocular before you can even start to take them apart to determine the fault.
Like any bearing or gear system, the part would have to be cleaned with a degreaser, then reassembled with new lubricant.

Jan 04, 2010 | Pentax PCF WP II (8x40) Binocular

1 Answer

Double Vision Pentax 10x50 PCF III


If you have double vision it is out of collimation (alignment of the optical axis). You need to send this to the manufacturer for repair.

Jul 05, 2009 | Pentax PCFIII (10x50) Binocular

1 Answer

Focusing on Pentax lens


yes, fixed problem, on official pentax site forum.

Sep 12, 2008 | Cameras

2 Answers

I BOUGHT A PENTAX K10D THAT CAME WITH A VERY NICE AUTO ZOOM LENS. I OWN SEVERAL OLDER PENTAX LENSES THAT I USED ON MY K1000 CAMERA AND I WANT TO USE THEM ON THE K10D. I CANNOT FIGURE OUT THE SETTINGS THAT...


Hello,

I don't own a K10D, but I do own a K100D which I have successfully used both manual focus & auto-focus lenses from my old Pentax stash!

1) If it is a manual focus lens, you need to turn off Autofocus on the body of your K10D. On my K100D, there is a switch on the side of the lens mount that says [-MF or -AF]. "-MF" is manual focus mode & "-AF" is autofocus mode. Since your lens doesn't have autofocus capability, turn it to the "-MF" mode.

Also . . . When I press "Menu" and go to "Custom Setting", I change two settings . . .

1) I change "Using aperture ring" to "Permitted". This allows you to use manual lenses (M lenses) that do not have an auto(exposure) setting, and also lets you use Auto lenses (A, KA, KA2, FA, etc.) in either the Auto or manual aperture setting modes.

2) I change "Fl with S lens used" so that even with a manual focus lens, although I don't have autofocus capability, my K100D beeps and shows a little red square in the viewfinder when I have successfully focused manually!

The K10D should have the same options.

This should get you up and running!

I have had a load of fun with my old lens on my new digital Pentax!

Take care & Happy Imaging!
Glen
:)

Jul 14, 2008 | Pentax K100D Super Digital SLR Camera

1 Answer

Pentax K10D won't work with lens from Pentax K100 (film0


The lenses are probably manual focus lenses,  
  1. Make sure that the apature ring is set to 'A' or automatic, 
  2. if these are manual focus lenses then switch the focus switch on the left side of the camera body to MF 
  3. If this still doesn't work, or you are having trouble with the apature ring then press the menu button to go to the  menu then press the right arrow key untill you are in the  Custom Settings, scroll through the custom settings with the up and down arrow keys until about the 2nd from bottom there is an option called "using aperture ring" set this to 2 (Permitted) This will make the camera take a image when lens is on any f-stop manually. 
Try this and everything should work fine. If all this hasn't worked then try seting the mode dial on the camera to M manual mode. Cheers

Feb 12, 2008 | Pentax K10D Body Only Digital Camera

1 Answer

Focus problems


If you have a low light setting or night setting or a speed priority setting there is the possibility one or the other has been inadvertently activated and you are getting long time exposures check out all your setting with the manual.

May 17, 2007 | Pentax *ist D Digital Camera

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