Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
04-18-2012, 09:23 AM   #1
Senior Member
userage's Avatar

Join Date: Dec 2011
Posts: 198
Help with Helios, will it get stuck?

So my Helios just arrived and just before mounting it I noticed it has an aperture pin. I read somewhere that this may get my lens stuck once mounted, is this true? Do I need to remove it or superglue it down. Its a Helios 44m so it has the A/M switch so gluing it down and just sticking to M should be fine right?

Attached Images
View Picture EXIF
PENTAX K-x  Photo 
04-18-2012, 09:30 AM   #2
Senior Member
pezmaker's Avatar

Join Date: Jul 2011
Location: Madison, WI
Photos: Gallery | Albums
Posts: 276
Good on you for paying attention, but this isn't the "dreaded Ricoh pin" that you're thinking of, it's just the m42 aperture pin. Your lens has an A/M switch, so focus in A, meter and shoot in M. That pin will not cause anything to stick anywhere.

--- EDIT ---
Also note - the m42-k adapter on that lens is the full flange type - it'll allow you CIF (Catch In Focus), but it won't allow infinity focus.
04-18-2012, 09:34 AM   #3
Senior Member
userage's Avatar

Join Date: Dec 2011
Posts: 198
Original Poster
QuoteOriginally posted by pezmaker Quote
Good on you for paying attention, but this isn't the "dreaded Ricoh pin" that you're thinking of, it's just the m42 aperture pin. Your lens has an A/M switch, so focus in A, meter and shoot in M. That pin will not cause anything to stick anywhere.

--- EDIT ---
Also note - the m42-k adapter on that lens is the full flange type - it'll allow you CIF (Catch In Focus), but it won't allow infinity focus.
Cool thanks for a quick reply

Also yeah I know about the adapter, I think I'll be okay with it though for now, I don't plan on using this lens to focus to infinity much anyway. (x
04-18-2012, 09:48 AM   #4
Veteran Member
Philoslothical's Avatar

Join Date: May 2011
Posts: 1,723
Just to confirm, all "auto" m42 lenses have this pin, and it has absolutely not effect on a DSLR. The pin retracts if it pushes up on anything, but I think it's just open air behind it when mounted.

04-18-2012, 09:58 AM   #5
Site Supporter
boriscleto's Avatar

Join Date: Dec 2009
Location: Liverpool, NY
Photos: Gallery
Posts: 12,295
QuoteOriginally posted by Philoslothical Quote
Just to confirm, all "auto" m42 lenses have this pin, and it has absolutely not effect on a DSLR. The pin retracts if it pushes up on anything, but I think it's just open air behind it when mounted.
There is nothing for the pin to push against unless you buy an expensive adapter that has an extra rim.
04-18-2012, 06:21 PM   #6
Veteran Member
RioRico's Avatar

Join Date: Jun 2008
Location: Limbo, California
Posts: 11,264
Use your Helios in good health! I have exactly the same setup: Helios-44 with cheap safe wide-flange no-infinity-focus M42-PK adapter. It's great for portraits or any work closer than about 10ft / 3m. As mentioned, the M42-auto aperture pin won't get stuck on anything. Don't glue it down because: 1) it's harmless; 2) gluing lowers resale value; 3) gluing isn't not necessary -- the lens has an M/A switch already. Cheers!
04-18-2012, 07:46 PM   #7
Veteran Member
hcarvalhoalves's Avatar

Join Date: Aug 2010
Location: São Paulo, Brazil
Posts: 836
QuoteOriginally posted by RioRico Quote
Use your Helios in good health! I have exactly the same setup: Helios-44 with cheap safe wide-flange no-infinity-focus M42-PK adapter. It's great for portraits or any work closer than about 10ft / 3m. As mentioned, the M42-auto aperture pin won't get stuck on anything. Don't glue it down because: 1) it's harmless; 2) gluing lowers resale value; 3) gluing isn't not necessary -- the lens has an M/A switch already. Cheers!
I have modded mine (non preset) by opening it and adding a shim to keep the pin down. So it's easily reversible if I ever sell it, although I doubt
04-18-2012, 08:12 PM   #8
Veteran Member
RickyFromVegas's Avatar

Join Date: May 2011
Location: Las Vegas
Photos: Gallery
Posts: 366
I simply opened up my 44m and removed the pin.
Why? Because at one point I believed that the pin was scratching the 2 bronze contacts inside the mount.
It wasn't, but either way, I was relieved after doing so, and I got to learn about 44m's construction.

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!
helios, k-mount, pentax lens, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Sibling Rivalry: Helios 44M vs. Helios 44M-4 stevebrot Pentax SLR Lens Discussion 36 08-03-2013 09:31 AM
PK-M 50/1.4 ring stuck, back-plate screws stuck fungiman_md Troubleshooting and Beginner Help 4 05-10-2011 12:54 AM
People 'O Helios O' Helios where art be? JohnBee Post Your Photos! 6 03-12-2011 07:19 PM
For Sale - Sold: M42 Helios 44M-6 MC 58mm F/2 & Helios 44-2 58mm F/2 donTTouchonlywatch Sold Items 6 12-25-2009 02:16 AM



All times are GMT -7. The time now is 01:16 AM. | 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