Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
11-21-2011, 03:31 AM   #31
Site Supporter
Site Supporter




Join Date: Apr 2011
Photos: Albums
Posts: 3,617
Well, glad I bought my bellows long ago - a K-mount manual set (Ricoh). I liked using it with my 80-205 Osawa. Used it recently with STak55/2. Got some interesting pictures of flowers in my front garden. Since it is K-mount it does not present the issues described.
But I thought of another solution. The 1/2 turn that the bellows could make before fouling the flash would open 0.5mm between the adapter and the back of the bellows. This could allow a thin hook tool to be introduced in order to press the spring (without risk of slipping and damaging something inside because the thread is still in the way. Then using a second hook tool it should be possible to release the adapter. One hook to press the spring, the other to hook onto the edge of the adapter slot near the spring to pull the adapter past the lock point and then to release it.

11-21-2011, 03:35 AM   #32
Site Supporter
Site Supporter
Stone G.'s Avatar

Join Date: Jun 2010
Location: North Zealand, Denmark
Photos: Gallery | Albums
Posts: 1,516
Back to basics. M42 extension tubes are very cheap - even the original Asahi Pentax ones - and I would go for the solution proposed by Nick Siebers.

It adds very little to the lenght of the completely compressed bellows and is compeletely "fail safe". See "position 2" in image below. I trust that you have discovered by now that loosening the little screw in "Position 1" you can rotate the bellows freely relative to the camera --- and you can rotate the silvery ring relative to the M42 adapter( with a modest diffuclty getting the right grip of that thin ring).
Attached Images
View Picture EXIF
PENTAX Optio 550  Photo 
11-21-2011, 03:36 AM   #33
Pentaxian
wolfiegirl's Avatar

Join Date: Oct 2011
Location: Outside of Canberra, Australia
Photos: Gallery
Posts: 4,075
Original Poster
Hi Tim,

That hook thing sounds tricky. Or am I misunderstanding? The problem with my bellows at the time was that I couldn't even see where the adapter release-y thing was. I'd like to think I got lucky in that the bellows was old (albeit in very good nick) and that after I undid some screws age and gravity did the rest. The still sticky glue around the bellows collar sure makes me wonder. Either way I'm not going back to playing with the bellows until I get a cheap infinity m42 adapter and/or a m42 2x macro tube. Lucky I have other lenses to play with while I wait...
11-21-2011, 03:39 AM   #34
Pentaxian
wolfiegirl's Avatar

Join Date: Oct 2011
Location: Outside of Canberra, Australia
Photos: Gallery
Posts: 4,075
Original Poster
Hi StoneG!

Thanks so so so much for that photo! That's what I need! Visual aids!!

Umm methinks you trust me too much. I only unscrewed those two metal bits when I realised the bellows was stuck and I was desperately trying to unscrew anything and everything in order to get the thing to get off my camera.

While playing with the bellows I only used the screws on the sides rails to achieve focus.

Looks like I'm going to need both a m42 adapter and the macro extension tube to make this bellows work. Or do m42 macro tubes have one side as the m42 screw, and the other as a pk mount? Do they in fact even come as the latter? *curious*

11-21-2011, 04:03 AM   #35
Site Supporter
Site Supporter
Stone G.'s Avatar

Join Date: Jun 2010
Location: North Zealand, Denmark
Photos: Gallery | Albums
Posts: 1,516
QuoteOriginally posted by wolfiegirl Quote
Hi StoneG!

Thanks so so so much for that photo! That's what I need! Visual aids!!

Umm methinks you trust me too much. I only unscrewed those two metal bits when I realised the bellows was stuck and I was desperately trying to unscrew anything and everything in order to get the thing to get off my camera.

While playing with the bellows I only used the screws on the sides rails to achieve focus.

Looks like I'm going to need both a m42 adapter and the macro extension tube to make this bellows work. Or do m42 macro tubes have one side as the m42 screw, and the other as a pk mount? Do they in fact even come as the latter? *curious*
Well no, but what you CAN do is this: Get a thin P/K extension tube and an M42-to-P/K adapter. Insert the M42 to P/K at the lens end of the extension tube and voila: You now have an M42-to-P/K extension tube!
11-21-2011, 04:14 AM   #36
Pentaxian
wolfiegirl's Avatar

Join Date: Oct 2011
Location: Outside of Canberra, Australia
Photos: Gallery
Posts: 4,075
Original Poster
QuoteOriginally posted by Stone G. Quote
Well no, but what you CAN do is this: Get a thin P/K extension tube and an M42-to-P/K adapter. Insert the M42 to P/K at the lens end of the extension tube and voila: You now have an M42-to-P/K extension tube!
love it!!
11-23-2011, 06:49 PM   #37
Senior Member




Join Date: Sep 2007
Location: Boardman, Oregon
Photos: Gallery
Posts: 106
If you had a genuine Pentax Auto-Bellows, attaching and detaching the camera is super simple. Mine is a M42 bellows, and presents no problems because Pentax built the bellows with a knurled clamp screw on the right side of the bellows that allows the camera body connector ring to slip completely out of the bellows. You then can attach or detach the connector ring, with or without a M42-P/K adapter, to your camera. It does not require that you turn the camera while it is attached to the bellows.

By the way, I just bought a 100mm bellows lens with an old bellows, and the prize in the box was the original operating manual for the Auto-Bellows/Slide Copier. I already had another M42 bellows and slide copier, but without the lens or manual. The manual also discusses using the bellows with standard super takumar lenses, and gives magnification values and other values along with it.
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!
adapter, camera, k100d, m42, pentax help, photography
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
M42 Adapter stuck on M42 lenses glee46 Troubleshooting and Beginner Help 31 11-29-2011 05:16 AM
m42 stuck on m42 bellows Unregistered Visitors' Center 1 10-26-2011 02:26 PM
Camera mount for Pentax M42 Auto Bellows? (NOT about M42-K adapter) baj Pentax Camera and Field Accessories 9 10-24-2011 10:42 PM
M42 bellows adapter? yeatzee Pentax Camera and Field Accessories 33 06-09-2011 11:16 AM
M42 Bellows Ira Photographic Technique 13 06-25-2010 04:24 AM



All times are GMT -7. The time now is 07:24 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