Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
08-12-2011, 12:45 AM   #1
Pentaxian




Join Date: Mar 2011
Location: westerly
Posts: 773
Vivitar 500mm lens coming unglued?

The rear section of my Vivitar 500 f/6.3 has detached from the main part of the lens. This hollow piece is about 7cm long and includes the mount.
Maybe some connector has broken or is missing, but it sure looks as though this piece was simply cemented in place.
Can anyone tell me how I might fix this? Is it as simple as gluing it again? Would I need special glue?

some pics:

Attached Images
View Picture EXIF
COOLPIX P60  Photo 
View Picture EXIF
COOLPIX P60  Photo 
View Picture EXIF
COOLPIX P60  Photo 
08-12-2011, 02:26 AM - 1 Like   #2
Giveaway winner!
MysteryOnion's Avatar

Join Date: Dec 2007
Location: beantown
Photos: Albums
Posts: 906
If you have a set of jeweler's drivers and remove the sleeve to expose the entire fitting. Verify if that version once had tapped holes for set screws. If yes, you can affix new set screws to tighten it down. The glue is usually a cement that is similar to the type for repairing ceramic... or at least the version of my 500mm long ago seemed to have what look like exactly the same stuff. A more semi flexible stuff like "Shoe-Goo" for sneaker repair, might be more better.
My old lens then, however, was a metal to plastic joint and the plastic had way too much flex to be very strong. Yours look to be a better quality metal to metal. Now my old 500 had taps for set screws and there were no screws installed, just glue. It found the same thread sized "set screws" and the three holes were a little deep for them, but they did hold the entire thing well. With the glue, it lasted two years before the flexing did it in again.
08-12-2011, 11:09 AM   #3
Pentaxian




Join Date: Mar 2011
Location: westerly
Posts: 773
Original Poster
MysteryOnion,

Yes! You nailed it.
The fitting was cemented inside the sleeve, but once I finally got it out I found the set screws you mentioned. And yes, the surfaces are all metal. I think I have some shoe goo or something similar. I'll just use that unless someone else chimes in with another suggestion.

Thank you!!
Tim

Last edited by .a.t.; 08-12-2011 at 12:10 PM.
08-12-2011, 04:26 PM   #4
Giveaway winner!
MysteryOnion's Avatar

Join Date: Dec 2007
Location: beantown
Photos: Albums
Posts: 906
You are welcome and count your blessing that it is metal on metal as so many of the knock-off 500s from the 80s and 90s from $79.99 to $119.95 I think were all the same $69.95 piece of crap I had then.

08-26-2011, 11:10 PM   #5
Banned




Join Date: Aug 2011
Posts: 5
Haha, so that kind of look (Vivitar etc) 500mm is not one to go for if I want a tele on eBay etc?
08-27-2011, 06:36 AM   #6
Veteran Member
RioRico's Avatar

Join Date: Jun 2008
Location: Limbo, California
Posts: 11,264
QuoteOriginally posted by Pentaxman645 Quote
Haha, so that kind of look (Vivitar etc) 500mm is not one to go for if I want a tele on eBay etc?
If it's US$20 or less, go for it. If more, don't. Even bad lenses are OK if they're cheap enough. At least, you won't mind so much just how bad they are. Oh yes, the character (flaws)!! Wowie!
08-27-2011, 06:50 PM   #7
Pentaxian




Join Date: Mar 2011
Location: westerly
Posts: 773
Original Poster
Yeah, but perfect lenses that don't fall apart in your hands are so boring.

Actually, despite my troubles, this lens looks and feels well made. Is it different from or better than the "knock-offs" MysteryOnion mentioned?
I couldn't say - I don't have any other 500s to compare.
For what it's worth, according to this page Vivitar Lens Manufactuers, my lens (serial no. 689...) may have been built by Olympus.

How about image quality? Here's an example. [I'm not patient enough to capture birds or critters, so I have only garden variety test shots.]


Vivitar 500 f/6.3 preset @ f/11


f/11 crop

Last edited by .a.t.; 01-20-2012 at 01:52 PM. Reason: form
08-28-2011, 07:47 AM   #8
Giveaway winner!
MysteryOnion's Avatar

Join Date: Dec 2007
Location: beantown
Photos: Albums
Posts: 906
Hey, that looks very nice and not anywhere the CA that I remember in that old 500 long ago.

08-28-2011, 09:33 AM   #9
Pentaxian




Join Date: Mar 2011
Location: westerly
Posts: 773
Original Poster
Thanks (again), MysteryOnion.

I really should practice bird stalking so I can get the best out of this lens.
Someday...

Tim
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!
lens, pentax help, piece, vivitar
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Does anyone know if a Vivitar Series 1 100-500mm lens will fit on a Pentax K-m? cobra k-m Pentax SLR Lens Discussion 9 04-22-2010 07:08 AM
500mm Vivitar Mirror Lense TexSon Pentax SLR Lens Discussion 5 12-26-2009 12:12 PM
Wanted - Acquired: 100-400mm, 100-500mm, 150-500mm or similar K-mount lens GibbyTheMole Sold Items 8 12-03-2009 11:52 AM
For Sale - Sold: Vivitar 500mm Multi-Coated Mirror Lens, M42 Screwmount wallyb Sold Items 9 08-22-2009 11:25 AM



All times are GMT -7. The time now is 01:44 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