Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
12-30-2010, 07:41 PM   #1
Senior Member




Join Date: Nov 2010
Location: Melbourne, Vic.
Posts: 119
Does the Vivitar 19mm f3.8 have the infamous Ricoh pin?

Hi folks

Pretty easy question, I'm looking to buy one of these but I'm not 100% sure if this lens has the infamous Ricoh pin or not?

I've done a bit of searching and it seems the pin is easy enough to remove, but I just wanted to be certain that lens does/doesn't have it before I buy it.

The pin itself is at about 6 o'clock to the red dot on the mount?

I'd be mounting it on my K-r, and apart from the Ricoh pin, there'd be no other issues with mounting it to the body?

Thanks

12-30-2010, 07:56 PM   #2
Site Supporter
boriscleto's Avatar

Join Date: Dec 2009
Location: Liverpool, NY
Photos: Gallery
Posts: 12,279
The presence of the "Ricoh" pin does not automatically mean the lens will get stuck. Later lenses have a wider, more rounded, contact that will not stick in the AF. In some Vivitar lenses the pin retracts when the aperture isn't set to A.
12-30-2010, 10:49 PM   #3
Veteran Member
Frogfish's Avatar

Join Date: Dec 2009
Location: Shanghai
Posts: 4,490
From all I've read it would take just 5 mins with a screwdriver to remove it. There are plenty of descriptions on the web on how to do this .. just don't be tempted to try it on your mount before removing it !
12-31-2010, 12:35 AM   #4
Veteran Member
xjjohnno's Avatar

Join Date: Jan 2009
Location: Melbourne Australia
Photos: Gallery
Posts: 2,115
The answer is NO. No Ricoh pin.

12-31-2010, 08:06 PM   #5
Site Supporter
stevebrot's Avatar

Join Date: Mar 2007
Location: Vancouver (USA)
Photos: Gallery | Albums
Posts: 26,158
Ummmm...the question would be what mount is on the Viv?

-- screw mount (m42): No Ricoh pin

-- plain K-mount (No "A" or "P" or "AE" position on aperture ring): No Ricoh pin

-- K-mount (other): Look for the pin

The last point sounds simplistic, but that really is the best way. Google images for "Ricoh Pin" and you will find plenty of illustrations showing what to look for.


Steve
01-01-2011, 01:36 AM   #6
Senior Member




Join Date: Nov 2010
Location: Melbourne, Vic.
Posts: 119
Original Poster
It is a K-mount with an "A" position on the aperture ring. Guess that means it has the pin?
01-01-2011, 05:14 PM   #7
Site Supporter
stevebrot's Avatar

Join Date: Mar 2007
Location: Vancouver (USA)
Photos: Gallery | Albums
Posts: 26,158
QuoteOriginally posted by nandystam Quote
It is a K-mount with an "A" position on the aperture ring. Guess that means it has the pin?
It might and it might not. Vivitar made three variants; Pentax-A compatible, Ricoh-P compatible, and Pentax-A/Ricoh-P combined. The only way to know for sure is to examine the mount. As mentioned above, the risk is lower for the "ball" version of the pin and minor surgery can correct the problem regardless of version.


Steve
01-01-2011, 05:52 PM   #8
Veteran Member




Join Date: Feb 2010
Location: Missouri
Photos: Gallery | Albums
Posts: 407
viv 19/3.8

Mine has the PK-A/R mount and has no issues with being used on the Pentax SF-1 film SLR or the K-x DSLR. Hope this helps.
Sorry no pic of it on the K-x. It's below zero and I don't want to walk out to the truck to get another camera

Eric

Attached Images
View Picture EXIF
PENTAX K-x  Photo 
View Picture EXIF
PENTAX K-x  Photo 
01-01-2011, 06:08 PM   #9
Pentaxian
Pablom's Avatar

Join Date: Feb 2010
Location: Jerusalem
Posts: 1,940
QuoteOriginally posted by nandystam Quote
apart from the Ricoh pin, there'd be no other issues with mounting it to the body?
beware of this:
https://www.pentaxforums.com/forums/126565-post3.html
01-01-2011, 06:09 PM   #10
Pentaxian
Pablom's Avatar

Join Date: Feb 2010
Location: Jerusalem
Posts: 1,940
better yet:

http://www.robertstech.com/compat.htm
01-01-2011, 06:12 PM   #11
Veteran Member
geauxpez's Avatar

Join Date: Jul 2008
Location: Atlanta
Photos: Gallery
Posts: 1,197
I had the same lens that erkie (above) has and had no issues mounting or removing that lens from my K10D.
01-02-2011, 11:13 AM   #12
Site Supporter
stevebrot's Avatar

Join Date: Mar 2007
Location: Vancouver (USA)
Photos: Gallery | Albums
Posts: 26,158
QuoteOriginally posted by erkie Quote
Mine has the PK-A/R mount and has no issues with being used on the Pentax SF-1 film SLR or the K-x DSLR. Hope this helps.
Sorry no pic of it on the K-x. It's below zero and I don't want to walk out to the truck to get another camera

Eric
Eric,
Thanks for sharing your images. As we can see, the lens is clearly marked PK-A/R. I can't tell for sure, but the pin itself should be visible in the lower photo towards the top of the lens flange at about 120 degrees clockwise from the mount lock groove in about the same position as the AF drive gear on a FA of DA lens.


Steve
01-02-2011, 01:54 PM   #13
Veteran Member




Join Date: Feb 2010
Location: Missouri
Photos: Gallery | Albums
Posts: 407
Viv 19

Here is a photo of the viv next to a pentax f 35-70 zoom.

The only extra pin I see is identified on the left lens in the photo. I have also pointed out the AF screw drive location on the right lens. The possible Ricoh pin is smaller that the contact pins and very rounded. It also does not protrude outward as much as the contact pins. So No issues with this one on My Kx.. But really look at the mount because I have seen Rikenon lenses with a very dastardly designed ricoh pins.

Hope this helps !

Eric

Oh I just wanted to add that this is the only "A" Lens that I have that I have to enter the focul length manually. The camera stops it down automatically like any other "A" lens but I have to chose either the 18or 20mm setting manually. Not sure why. Also Ths lens is NOTICEABLY SHARPER than My 18-55 Kit lens And distortion isn't an issue for me with this one. But a good lens hood is VERY helpful. But then I find them helpful to all lenses
Attached Images
View Picture EXIF
PENTAX K-x  Photo 

Last edited by erkie; 01-02-2011 at 02:00 PM.
01-02-2011, 11:25 PM   #14
Senior Member




Join Date: Nov 2010
Location: Melbourne, Vic.
Posts: 119
Original Poster
Thanks for the all info guys.

I've since confirmed the lens has the plastic flange on the rear - see pic below:



The flange looks a lot smaller (not as wide) as it was in the links posted earlier. Will this need to be cut down/cut off?

Is the Ricoh pin the located to the left of the closest mounting screw in the picture? It looks about 6 o'clock to the red mounting dot.

Cheers
01-03-2011, 06:44 AM   #15
Site Supporter
boriscleto's Avatar

Join Date: Dec 2009
Location: Liverpool, NY
Photos: Gallery
Posts: 12,279
QuoteOriginally posted by nandystam Quote
Thanks for the all info guys.

I've since confirmed the lens has the plastic flange on the rear - see pic below:



The flange looks a lot smaller (not as wide) as it was in the links posted earlier. Will this need to be cut down/cut off?

Is the Ricoh pin the located to the left of the closest mounting screw in the picture? It looks about 6 o'clock to the red mounting dot.

Cheers
The flange is not the extended type and will not need to be cut down.

Yes. The "Ricoh" pin is the pin at 6 o'clock from the mounting mark. If it has rounded edges it most likely will not get stuck.

Ricoh Pin - a set on Flickr
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!
k-mount, lens, pentax lens, pin, ricoh, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Ricoh pin - what is it and why the need to remove? GerryL Troubleshooting and Beginner Help 26 04-15-2015 12:56 PM
All Right...I did it....Ricoh Pin Lens is STUCK! Raylonn Pentax SLR Lens Discussion 31 10-16-2010 07:38 AM
Beware of the Ricoh appeture pin! Big Dave Pentax SLR Lens Discussion 0 12-17-2008 12:41 PM
Where's the Ricoh pin? heatherslightbox Pentax SLR Lens Discussion 7 03-12-2008 05:23 PM
Ricoh lens pin? reknelb Pentax SLR Lens Discussion 3 02-12-2007 04:37 PM



All times are GMT -7. The time now is 08:05 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