Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
07-07-2010, 07:19 PM   #1
Site Supporter
Site Supporter
pdophoto's Avatar

Join Date: Feb 2009
Location: Saguenay, Qc, Canada
Photos: Albums
Posts: 182
Rear lens caps

Hi everybody,

How do you keep k type rear lens caps from becoming loose?

Almost all my caps do not stay tight on my lenses, they are worn out.

Is there a way to correct the problem or do we have to buy them by the dozen and replace them?

07-07-2010, 07:35 PM   #2
Site Supporter
Site Supporter
SpecialK's Avatar

Join Date: Dec 2006
Location: So California
Photos: Gallery
Posts: 14,915
QuoteOriginally posted by pdophoto Quote
buy them by the dozen and replace them?
That.
07-07-2010, 07:44 PM   #3
Loyal Site Supporter
Loyal Site Supporter
drougge's Avatar

Join Date: Jan 2010
Location: Malmö
Photos: Gallery
Posts: 787
I don't think any of my pentax original rear caps are loose (not that I'd likely take note of it), so the solution might possibly be not to use third party caps.

But I would buy lots of cheap ones. A dozen rear caps (and a dozen body caps, because they're sold as a pair) only costs 18.02USD from DX (including shipping). Quality seems to vary though, the ones I bought are a good fit, but some comments suggest this is not always the case.
07-07-2010, 07:50 PM   #4
Site Supporter
Site Supporter
pdophoto's Avatar

Join Date: Feb 2009
Location: Saguenay, Qc, Canada
Photos: Albums
Posts: 182
Original Poster
Hi SpecialK and drougge

thanks for the reply, but where can I get genuine caps in Canada or USA?

07-07-2010, 08:47 PM   #5
Pentaxian
Ratmagiclady's Avatar

Join Date: Nov 2008
Location: GA
Photos: Gallery | Albums
Posts: 13,476
Speaking of pet peeves: What is *up* with the rear caps, anyway?

How hard could it *possibly* be to make rear caps that fit the same lens mount and stay?

One thing I never had to worry about as a Canon FD shooter.
07-08-2010, 05:05 AM   #6
Pentaxian
bdery's Avatar

Join Date: Mar 2008
Location: Quebec city, Canada
Photos: Gallery
Posts: 5,831
QuoteOriginally posted by pdophoto Quote
Hi SpecialK and drougge

thanks for the reply, but where can I get genuine caps in Canada or USA?
You want them to read "Pentax" ? if so, be prepared to pay a premium. You can buy them from the Pentax stores.

Generic rear caps are just the same, work as well, and cost next to nothing.

QuoteQuote:
How hard could it *possibly* be to make rear caps that fit the same lens mount and stay?

One thing I never had to worry about as a Canon FD shooter
Not sure I understand. All my caps are perfectly fitted. The only one I don't like is my Sigma K-mount cap : it's made to go on only if it's at the perfect angle, and I never use it because of that.
07-08-2010, 06:53 AM   #7
Site Supporter
Site Supporter
pdophoto's Avatar

Join Date: Feb 2009
Location: Saguenay, Qc, Canada
Photos: Albums
Posts: 182
Original Poster
QuoteOriginally posted by bdery Quote
You want them to read "Pentax" ? if so, be prepared to pay a premium. You can buy them from the Pentax stores.

Generic rear caps are just the same, work as well, and cost next to nothing.



Not sure I understand. All my caps are perfectly fitted. The only one I don't like is my Sigma K-mount cap : it's made to go on only if it's at the perfect angle, and I never use it because of that.
Hi bdery

QuoteQuote:
Generic rear caps are just the same, work as well, and cost next to nothing.
I know that they work, but after a few times on & off they start to get loose.

As Ratmagiclady said
QuoteQuote:
How hard could it *possibly* be to make rear caps that fit the same lens mount and stay?
So I will have to invent something in maintenance or new style for the caps.

Thanks for all the answers
07-08-2010, 07:04 AM   #8
Veteran Member
farfisa's Avatar

Join Date: Nov 2008
Location: Toronto, Canada
Photos: Gallery
Posts: 1,274
I've bought these before:
New 5 x Pentax K Mount Plastic Rear Lens Cap Set on eBay.ca (item 360278015069 end time 02-Aug-10 14:52:24 EDT)

They're almost indistinguishable from the genuine article, except that they have PK on the back instead of Pentax Japan.

I think OP/Tech makes a really expensive one with a gasket on it to seal better. But it's really expensive!

07-08-2010, 07:21 AM   #9
Site Supporter
Site Supporter
pdophoto's Avatar

Join Date: Feb 2009
Location: Saguenay, Qc, Canada
Photos: Albums
Posts: 182
Original Poster
QuoteOriginally posted by farfisa Quote
I've bought these before:
New 5 x Pentax K Mount Plastic Rear Lens Cap Set on eBay.ca (item 360278015069 end time 02-Aug-10 14:52:24 EDT)

They're almost indistinguishable from the genuine article, except that they have PK on the back instead of Pentax Japan.

I think OP/Tech makes a really expensive one with a gasket on it to seal better. But it's really expensive!
HI farfisa,

Thanks for the comments.

I don't mind for them to be marked to "Pentax Japan", I am just looking for a product that will last.

Thanks again
07-08-2010, 08:17 AM   #10
Site Supporter
Site Supporter
SpecialK's Avatar

Join Date: Dec 2006
Location: So California
Photos: Gallery
Posts: 14,915
I have Tamron, Pentax and Sigma caps. They all fit well on the lenses, though the Tamron and Sigma can be a little difficult to line up.

However, I have a couple T-adaptors (Kipon and Bower, I think), and those same caps are so loose on them that they have no friction and just fall off.
07-08-2010, 09:05 AM   #11
Site Supporter
Site Supporter
gofour3's Avatar

Join Date: Oct 2008
Location: Vancouver, Canada
Posts: 5,345
QuoteOriginally posted by pdophoto Quote
Hi everybody,

How do you keep k type rear lens caps from becoming loose?

Almost all my caps do not stay tight on my lenses, they are worn out.

Is there a way to correct the problem or do we have to buy them by the dozen and replace them?
Your best bet is to buy a bunch and replacement them with the original Pentax ones. There are two sizes of the original Pentax k-mount rear caps. The smaller one was for K & M series lenses and the larger one was for the A series to cover the “A” contacts. The K & M series ones don’t have “PENTAX” written on them, they just say “ASAHI OPT. CO. JAPAN” and later ones were made in TAIWAN”.

Next time you are in Quebec City or Montreal try a camera store that sells used equipment, they will most likely have some kicking around in a box. Other than that eBay always has some.

Phil
07-08-2010, 06:01 PM   #12
Site Supporter
Site Supporter
pdophoto's Avatar

Join Date: Feb 2009
Location: Saguenay, Qc, Canada
Photos: Albums
Posts: 182
Original Poster
Hi SpecialK and gofour3,

Thanks for comments,

Will try to get the smaller ones cause I have 4 "M", 1 "K" & 3 extension tube made from teleconverters.

Will try Ebay, since when I am in Quebec or Montreal I rarely have time to go to any store.

And there is always DUCT TAPE!!!!!!!!!!!!!!!!!!..............*************lol
07-08-2010, 08:39 PM   #13
Pentaxian




Join Date: Feb 2009
Location: Alameda, CA
Posts: 3,198
If you want the best lens caps, get the Op/Tech. Like every "best" thing in file, they are pricey.

Better yet, get the "double" version:

07-09-2010, 02:57 AM   #14
Site Supporter
Site Supporter
G_Money's Avatar

Join Date: Jul 2007
Location: London, Ontario, Canada
Posts: 594
Jinfinance, purveyor of eBay screens and other accessories has them. Exactly like the originals and shipped to your door for $2 apiece.

Lens Caps
07-09-2010, 10:36 AM   #15
Site Supporter
Site Supporter
pdophoto's Avatar

Join Date: Feb 2009
Location: Saguenay, Qc, Canada
Photos: Albums
Posts: 182
Original Poster
Hi SOldBear & G_Money

Thanks for the replies

I have brought some Genuine Asahi Pentax caps to see if they are good, if not will try OP/TECH
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!
caps, k-mount, lens, pentax lens, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Rear lens caps tfischer Troubleshooting and Beginner Help 8 03-25-2010 02:58 PM
Silly question...M42 rear lens caps brecklundin Pentax SLR Lens Discussion 4 11-29-2009 08:18 AM
Rear lens Caps.... Daveinozbikes Pentax Camera and Field Accessories 2 07-13-2009 05:52 PM
Rear Lens Caps Nowhere Matt Pentax SLR Lens Discussion 2 02-24-2009 03:07 PM



All times are GMT -7. The time now is 02:41 AM. | 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