Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
01-17-2014, 10:09 AM   #1
New Member




Join Date: Dec 2006
Location: Redwood City, California, USA
Posts: 7
Source for plastic bump on Pentax-A/M lens barrels?

Hello Pentaxians,

I'm considering buying a Pentax-M lens, but it is missing the white plastic bump on its lens barrel. I have found that these are quite useful for gripping the lens when installing or removing it from a mount.

This photo shows the bump here in case my description is not clear (the one in this photo is yellowish):
http://lh4.ggpht.com/_bmjYBbtGtuA/S1zrCFbfBLI/AAAAAAAABKU/YVzlVRcaJP4/s800/IMGQ6120.jpg

Does anybody know of a source for obtaining replacement bumps - original Pentax items or something similar?

Cheers,

Tom

01-17-2014, 10:16 AM   #2
Veteran Member




Join Date: Feb 2012
Location: Fredericton, New Brunswick
Photos: Gallery
Posts: 631
Leica & Pentax & Nikon | Leitax has some red Leica ones. Pretty sure it'd function more or less the same. (Albeit, 3 Euros seems a tad steep)
01-17-2014, 10:21 AM   #3
Pentaxian
Not a Number's Avatar

Join Date: Mar 2012
Location: Venice, CA
Posts: 3,894
I don't know if you can find one for Pentax but arts and crafts stores (such as Michael's in the US) sell little plastic beads in many colors and sizes. These were perfect replacements for the red bump on Minolta lenses.
01-17-2014, 10:36 AM   #4
Pentaxian




Join Date: Oct 2011
Location: Savannah, GA
Posts: 4,988
Finding a Pentax-M 50/2 for $20 or less is not hard...

01-17-2014, 11:13 AM   #5
Site Supporter
boriscleto's Avatar

Join Date: Dec 2009
Location: Liverpool, NY
Photos: Gallery
Posts: 12,278
Just find a grungy lens, like this

SMC Pentax 50mm 1 1 2 Super Fast Lens for Parts Repair 1449772 | eBay
01-17-2014, 11:27 AM   #6
Site Supporter
tomwil's Avatar

Join Date: May 2009
Location: Maryland USA
Posts: 778
QuoteOriginally posted by boriscleto Quote
Ha Ha Ha ... yea, at $144! Good catch!

01-17-2014, 11:54 AM   #7
Site Supporter




Join Date: Sep 2010
Posts: 456
The white bump has another practical purpose.

It lines up with the lens unlocking button for blind lens install. Anyone with a history of LBA has extras. Strangely the kit lens for the MX, the pancake 40, does not have one.

Last edited by aoeu; 01-17-2014 at 11:54 AM. Reason: added commas
01-17-2014, 09:29 PM   #8
New Member




Join Date: Dec 2006
Location: Redwood City, California, USA
Posts: 7
Original Poster
Thank you all for the great leads and other replies! This sounds like a very solvable problem.

01-18-2014, 12:48 PM   #9
Site Supporter
stevebrot's Avatar

Join Date: Mar 2007
Location: Vancouver (USA)
Photos: Gallery | Albums
Posts: 26,155
I like the craft store option. I wonder what color bead would look good on my Zenitar fisheye?


Steve
01-19-2014, 08:59 AM   #10
Moderator PEG Judges
Kerrowdown's Avatar

Join Date: Aug 2008
Location: Highlands of Scotland.
Photos: Gallery
Posts: 30,584
QuoteOriginally posted by stevebrot Quote
colour bead would look good
A Canon Red "L" Lens one, just to confuse folk.
01-19-2014, 11:17 AM   #11
Site Supporter
DeepThrob's Avatar

Join Date: Nov 2012
Location: Taos, New Mexico
Posts: 137
remember those long strips of paper with hundres of little candy dots on them ? lifetime supply.
01-19-2014, 11:26 AM   #12
Site Supporter
stevebrot's Avatar

Join Date: Mar 2007
Location: Vancouver (USA)
Photos: Gallery | Albums
Posts: 26,155
QuoteOriginally posted by kerrowdown Quote
A Canon Red "L" Lens one, just to confuse folk.
Or red for Commie lens!!!


Steve
01-21-2014, 07:20 PM   #13
Site Supporter
JimJohnson's Avatar

Join Date: Jan 2012
Location: Lake Superior - Michigan
Photos: Gallery
Posts: 2,164
Shouldn't hard to sculpt your own out of marine epoxy if nothing else works.
01-21-2014, 08:12 PM   #14
Veteran Member
sam-joseph's Avatar

Join Date: Oct 2009
Location: Newcastle, NSW, Australia
Photos: Gallery
Posts: 1,086
A dot of fairly thick two part adhesive, like Araldite might work.
On another note, the way that 50mm f1.2 has been treated should be a criminal offence. "The barrel shows signs of wear" is the understatement of the century.

Regards
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!
bump, bump barrel plastic, lens, pentax help, pentax-a/m lens, photo, plastic, source, source for plastic
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Swapping out the plastic mount on a DA 35/2.4? Fat Albert Pentax SLR Lens Discussion 5 09-27-2013 12:59 PM
will a pentax-m lens meter/manual focus on a pentax dslr? fish4570 Pentax DSLR Discussion 3 09-20-2012 08:48 AM
Looking for a reputable source for custom mats Jodokast96 Digital Processing, Software, and Printing 7 02-14-2012 08:26 PM
I'm looking for a new Pentax lens-need advice. charliezap Pentax SLR Lens Discussion 6 01-19-2012 06:33 PM
Can the plastic lens mount on cheap Pentax lenses be replaced? creampuff Pentax SLR Lens Discussion 22 12-30-2010 06:29 PM



All times are GMT -7. The time now is 03:49 PM. | See also: NikonForums.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