Ricoh Rikenon P 1:1.7 50mm Lens on a K-5

liquid85 · 04-21-2013, 08:37 AM

I just bought a Ricoh Rikenon P 1:1.7 50mm Lens on ebay. Will this lens fit on my K-5 or do I need an adapter? If I need one, which adapter do I need?Thanks.

Na Horuk · 04-21-2013, 08:47 AM

If its K mount it will fit. Just make sure it doesn't have a Ricoh pin. There are a couple threads on the pin and how to remove it.
Did you read its review section?
Rikoh Rikenon P 50mm F1.7 Lens Reviews - Ricoh Lenses - Pentax Lens Review Database

liquid85 · 04-21-2013, 09:11 AM

Sorry for my ignorance, but how do I know if its a K mount? If it helps I bought it in lot auction and the lens is mounted to an old Pentax K-X 35mm camera. Would it be safe to assume it's a K mount?

GabrielFFontes · 04-21-2013, 09:20 AM

Originally posted by liquid85

Sorry for my ignorance, but how do I know if its a K mount? If it helps I bought it in lot auction and the lens is mounted to an old Pentax K-X 35mm camera. Would it be safe to assume it's a K mount?

Yes, it would be.
I don't know a lot about Ricoh lenses, but be careful with that Ricoh pin (not sure if it applies to this one).

**boriscleto** · 04-21-2013, 10:02 AM

All Ricoh P series lenses have the Ricoh pin. But not all are dangerous...it is probably best to remove it in this case.

Na Horuk · 04-21-2013, 10:28 AM

Which lens did you get with your camera? That one has a K mount. Now just look at its size and approximate layout.
Other brand cameras have different mounts, some only slightly different, some very different. So if you buy a lens, it has to be "for Pentax"

jimr-pdx · 04-21-2013, 11:06 AM

Ricoh sold its own line of SLRs at the time and all used the K mount. I have owned several and never thought twice about the mount - in fact many old Vivitars I've owned use the KR label instead of PK to show their Ricoh compatibility! And I've used the Rikenon-P 50 f/2 and 1.7 with no issues, as well as the Sears f/1.4 that looked identical to the Rikenon XR. I've had other Rikenons with the pin, but the 50mm had more of a button which is not a problem - still, the surgery brings comfort.

Guakala · 04-21-2013, 11:22 AM

Yeah all "Rikenon P" lenses have the infamous Ricoh pin, I have 3 Rikenon P lenses which have all been de-pinned. I kept the pins in a safe place in case I wanted to some day reinstall the pins to use those lenses on my KR-30SP camera.

04-21-2013, 08:37 AM	#1
liquid85 Forum Member Join Date: Apr 2013 Posts: 58	Ricoh Rikenon P 1:1.7 50mm Lens on a K-5 I just bought a Ricoh Rikenon P 1:1.7 50mm Lens on ebay. Will this lens fit on my K-5 or do I need an adapter? If I need one, which adapter do I need?Thanks.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Ricoh Rikenon P 50mm 1.7 on a K100D	GibbyTheMole	Pentax DSLR Discussion	3	03-01-2011 12:10 PM
For Sale - Sold: Pentax M 28mm 3.5, Sears 55mm 1.4, Ricoh P 50mm 1.7, Chinon 50mm 1.9 (Worldwid	causey	Sold Items	17	01-08-2011 11:14 AM
For Sale - Sold: Ricoh Rikenon P 1:1.7 50mm lens (Worldwide)	kp0c	Sold Items	5	12-19-2010 05:53 PM

04-21-2013, 08:47 AM	#2
Na Horuk Veteran Member Join Date: Feb 2012 Location: Slovenia, probably Photos: Gallery \| Albums Posts: 11,186	If its K mount it will fit. Just make sure it doesn't have a Ricoh pin. There are a couple threads on the pin and how to remove it. Did you read its review section? Rikoh Rikenon P 50mm F1.7 Lens Reviews - Ricoh Lenses - Pentax Lens Review Database

04-21-2013, 09:11 AM	#3
liquid85 Forum Member Join Date: Apr 2013 Posts: 58 Original Poster	Sorry for my ignorance, but how do I know if its a K mount? If it helps I bought it in lot auction and the lens is mounted to an old Pentax K-X 35mm camera. Would it be safe to assume it's a K mount?

04-21-2013, 09:20 AM	#4
GabrielFFontes Veteran Member Join Date: Jul 2011 Location: Rio de Janeiro, Brazil Posts: 647	Originally posted by liquid85 Sorry for my ignorance, but how do I know if its a K mount? If it helps I bought it in lot auction and the lens is mounted to an old Pentax K-X 35mm camera. Would it be safe to assume it's a K mount? Yes, it would be. I don't know a lot about Ricoh lenses, but be careful with that Ricoh pin (not sure if it applies to this one).

04-21-2013, 10:02 AM	#5
boriscleto Loyal Site Supporter Join Date: Dec 2009 Location: North Syracuse, NY Photos: Gallery Posts: 16,475	All Ricoh P series lenses have the Ricoh pin. But not all are dangerous...it is probably best to remove it in this case.

04-21-2013, 10:28 AM	#6
Na Horuk Veteran Member Join Date: Feb 2012 Location: Slovenia, probably Photos: Gallery \| Albums Posts: 11,186	Which lens did you get with your camera? That one has a K mount. Now just look at its size and approximate layout. Other brand cameras have different mounts, some only slightly different, some very different. So if you buy a lens, it has to be "for Pentax"

04-21-2013, 11:06 AM	#7
jimr-pdx Pentaxian Join Date: May 2010 Location: now 1 hour north of PDX Photos: Gallery \| Albums Posts: 3,897	Ricoh sold its own line of SLRs at the time and all used the K mount. I have owned several and never thought twice about the mount - in fact many old Vivitars I've owned use the KR label instead of PK to show their Ricoh compatibility! And I've used the Rikenon-P 50 f/2 and 1.7 with no issues, as well as the Sears f/1.4 that looked identical to the Rikenon XR. I've had other Rikenons with the pin, but the 50mm had more of a button which is not a problem - still, the surgery brings comfort.

04-21-2013, 11:22 AM	#8
Guakala Senior Member Join Date: Dec 2009 Location: Boston, MA Posts: 158	Yeah all "Rikenon P" lenses have the infamous Ricoh pin, I have 3 Rikenon P lenses which have all been de-pinned. I kept the pins in a safe place in case I wanted to some day reinstall the pins to use those lenses on my KR-30SP camera.