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Ricoh XR Rikenon 50mm F2

Reviews Views Date of last review
19 84,068 Thu December 7, 2023
Recommended By Average Price Average User Rating
95% of reviewers $23.89 8.68
Ricoh XR Rikenon 50mm F2

Ricoh XR Rikenon 50mm F2
Ricoh XR Rikenon 50mm F2

  • Focal length: 50mm
  • Maximum aperture: f/2
  • Minimum aperture: f/16
  • Minimum focus distance: 0.44m (17 inches)
  • Aperture blades: 6 (curved)
  • Mount: Pentax K (non-A)
  • Focus ring direction: Same as Pentax
  • Aperture ring direction: Same as Pentax
  • AF: No
  • Filter size: 52mm
  • Optical formula: 6 elements in 5 groups
  • Coating: Single-coated
  • Construction: Metal with rubber grip on focus ring, stainless steel mount

The XR Rikenon 50/2 was one of three kit lenses offered with Ricoh SLR cameras in the late 1970s through the early 1980s. Starting in 1982, a non-XR 50mm f/2 lens was also sold with various Ricoh camera models. The non-XR lenses have a different optical and physical design and may be distinguished by the lack of the "XR" designation on the lens face.

It should be noted that this lens, as with all XR Rikenons has a standard K-mount (no Ricoh "P" pin) and is widely compatible with most K-mount bodies.
Price History:

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Forum Member

Registered: July, 2020
Posts: 77
Review Date: December 7, 2023 Recommended | Price: $40.00 | Rating: 7 

Pros: Build, ease of use, sharpness, aperture clicks per stop
Cons: a bit boring
Sharpness: 10    Aberrations: 7    Bokeh: 7    Handling: 8    Value: 9    Camera Used: K-S2, K200D   

No doubt that this is a very sharp lens even within it's 50mm category.

Build quality is first rate (the metal build without "L" or "S" designation) and I like how the XR series handles. I much prefer full over half stop clicks on the aperture ring. It focusses easily and with max aperture of f2 there is reasonable sense of DOF in the viewfinder.

I got the lens in a bundle, it had a few strands of fungus but as I liked the performance of the lens I paid to get it removed. The cost quoted is really the cost of repair with a tiny bit extra for the initial purchase.

Wide open, it is slightly prone to purple fringing on the K-S2, not the K200d or my recently acquired K7. The DA 1.8 is actually much worse though.

The only problem with this lens is it's a bit boring. Once you are over the sharpness, I find it lacks a bit of character. The Pentacon 50mm 1.8 and even the Pentax M 50mm f2 are both capable of occasional magic, this Ricoh never surprises me which I guess could be seen as a positive - it is more reliable.

I find Ricoh provides a cooler palette than both the M series and Pentacon. For this reason and it's dependability I keep it but I don't feel particularly attached to it.
Junior Member

Registered: February, 2023
Posts: 38
Review Date: March 4, 2023 Recommended | Price: $15.00 | Rating: 9 

Pros: SHARPNESS, Economical, Durable
Cons: Full Aperture Stops Only, 0.6m Minimal Focusing Distance
Sharpness: 9    Handling: 8    Value: 10    Camera Used: Pentax ME Super, Ricoh KR-5 Super   

This is the late version of XR Rikenon 50mm f2 and hence the letter "L" on its name. Construction is mostly plastic and the minimal focusing distance is 0.6m instead of 0.45m. However, the optical formula is the same as the early non-L version. This lens has a high reputation on its sharpness, on film and on digital alike. To enthusiasts in Japan, it is the "Japanese Summicron"! Here is an article from Japan about this lens: . You can use the translating function of your browser to read it through.

This is a non-P Ricoh lens and thus has a standard fully mechanical Pentax-K mount which will fit on almost all Pentax bodies even the DSLRs. The only question would be whether your body can meter with the lens or not. The focusing mechanism is not as smooth as the SMC Pentax-A 50mm f2. It is smooth but there is not enough friction though this could be due to the age of the lens itself. My only complaint about this lens is that it does not have half-stop clicks on the aperture ring. Using on a body with aperture priority AE and a stepless electronic shutter, it is fine. However, on a fully mechanical body, one would sometimes need to settle with 1/2 stop over- or under-exposures.

Optically, this lens is pretty soft wide-open but when stopped-down, it outperforms the Pentax, at least from my own experience. For this reason, before I sold this lens along with my Ricoh KR-5 Super, I mostly had it on my Pentax ME Super instead of the SMC Pentax-A 50mm f2 (which was also sold later along with my Pentax K1000). Anyway, below is a sample image and its respective 100% crop of a 2400dpi film scan. It was taken with Ilford HP5+ exposed at ISO250.

New Member

Registered: May, 2021
Posts: 15
Review Date: February 11, 2023 Recommended | Price: $11.00 | Rating: 9 

Pros: Sharpness
Cons: Not the most beautiful colours
Sharpness: 9    Aberrations: 7    Bokeh: 8    Handling: 8    Value: 9    Camera Used: Sony A7iii   

Wow, I have to say I'm impressed by the sharpness of this lens stopped down! I was a bit sceptic at first, but after many postive reviews I decided to give it a go.

Wide open it isn't great, but once you stop it down to f8 it really is sharper than my Pentax-M 50 1.7 and Minolta MD 50 1.7

See this video for a comparison between those lenses:
Senior Member

Registered: July, 2022
Location: Ocala, FL
Posts: 115
Review Date: August 12, 2022 Recommended | Price: $25.00 | Rating: 10 

Pros: Sharp, lightweight, easy to focus
Cons: (relatively) cheaply made, but not bad
Sharpness: 10    Aberrations: 9    Bokeh: 8    Handling: 10    Value: 10    Camera Used: K10D   

I got two of these lenses, one I got as a part of a lens lot and its a Sears F2.0 which is literally identical to the Ricoh Rikenon F2.0 - they are the SAME lens, I am 100% sure of this.

This is a very sharp, easy to focus, great, general purpose 50mm lens. I have had great experiences with it so far and would highly recommend it to anyone looking for a low cost 50 which is relatively fast for the money.

One more reason I love the Pentaxverse - tons of great vintage glass.
Site Supporter

Registered: January, 2019
Location: Beautiful British Columbia
Posts: 70

1 user found this helpful
Review Date: January 26, 2019 Recommended | Price: $20.00 | Rating: 9 

Pros: Sharp, nice boken, inexpensive
Cons: None I can see
Sharpness: 10    Aberrations: 9    Bokeh: 9    Handling: 10    Value: 10    Camera Used: Pentax K-S2   

I found a one of these lens in a pawn shop for $25.00 Cnd ($20 US) and was a bit skeptical at first, but so far it has exceed all my expectation. It has a good depth of field, and while not a macro lens, you can get pretty close to your subject and get a crisp focus. The lens does not seem to suffer from softening at any f-stop and creates a nice bokeh at more open apertures. The following were taken on a very overcast day and have not had more than 4 - 5 minutes of work put into them post processing:

cone f2 by SSean O'Connell, on Flickr

hip f2 by Sean O'Connell, on Flickr

hip f4 by Sean O'Connell, on Flickr

bird by Sean O'Connell, on Flickr

tree by Sean O'Connell, on Flickr

garden kid by Sean O'Connell, on Flickr

Overall very sharp with nice rendering of tones. If you can find one for a similar price, it's more than worth it.
Junior Member

Registered: May, 2018
Posts: 34
Review Date: July 15, 2018 Recommended | Price: $25.00 | Rating: 8 

Pros: It's good but not as good as the FA 50mm f1.4
Cons: Flare. Sharpness
Sharpness: 8    Aberrations: 7    Bokeh: 7    Handling: 7    Value: 8    Camera Used: Pentax K-1   

This is not a bad lense but, having just got an XR L f2 50mm used, it's not in the same league as the FA f1.4 50mm Pentax. Maybe I got a duff version and I DO like Ricoh gear. I have the GR analogue and digital, Ricoh 35mm film bodies and other 50mm Ricohs which I rate better than this XR so far. I'll kerp testing them but, so far, the FA 50mm 1.4 is outrageously good. Not cheap but brilliant
New Member

Registered: November, 2016
Posts: 5

2 users found this helpful
Review Date: June 3, 2017 Recommended | Price: $25.00 | Rating: 9 

Pros: Cheap and very sharp
Cons: Plastic, focusing and aperture ring
Sharpness: 9    Aberrations: 8    Bokeh: 8    Handling: 8    Value: 10    Camera Used: K-50   

Cheap and sharp, nothing more. Hard to focus and also hard to use aperture ring sometimes. I really like it because its sharpness.

New Member

Registered: June, 2017
Posts: 2
Review Date: June 3, 2017 Recommended | Price: $60.00 | Rating: 10 

Pros: Sharp
Cons: Not particularly
Sharpness: 10    Aberrations: 10    Bokeh: 9    Handling: 10    Value: 10    Camera Used: K3-2   


One of The famous Old lens for sharpness In Japan.
Please check the link destination.

100% Crop It can not express on the Web.

100% Crop

'Okayama castle'

Japanese Bizen sword 'TACHI'. It is 'Sahyouenojou Tunetugu' works.
A 'TACHI' is a large size Japanese sword.
Black lacquered sheath.
The late 'Kamakura' period. About 700 years ago.
It is a real Japanese sword that Samurai actually used.

Japanese Bizen sword 'TACHI'. It is believed that 'Kanehira' works.
A 'TACHI' is a large size Japanese sword.
The late 'Heian' period. About 1000 years ago.
It is a real Japanese sword that Samurai actually used.
New Member

Registered: March, 2016
Posts: 3

1 user found this helpful
Review Date: February 18, 2017 Recommended | Price: $25.00 | Rating: 10 

Pros: Sharp as macro lenses - Single coating? I hadn't noticed it - One of my best lenses
Cons: Fully manual?
Sharpness: 10    Aberrations: 9    Bokeh: 10    Handling: 9    Value: 10    Camera Used: Pentax K-S1   


Registered: March, 2015
Location: Warsaw
Posts: 638

1 user found this helpful
Review Date: April 19, 2015 Recommended | Price: $10.00 | Rating: 10 

Pros: Light, it is a very sharp lens if closed one step to 2.8 and more.
Cons: Cheap feel. Rubber push-on cap.
Sharpness: 9    Aberrations: 9    Bokeh: 8    Handling: 9    Value: 10    Camera Used: K-30, K-r. K-50, K-3   

First of all-it's one of sharpest lenses I own- in this field in my opinion it beats recent DA 50/1.8, all Helios 44 variations, and Pentax M 50/2 on all apretures even full open. I got mine as bargain on some flea market in Warsaw around four years ago with a (as I found later) broken pentax film body, whole thing cost me 40 PLN(around 10 US dolars).
For that price-you can't get anything better. It looks and feels plastic and cheap-but its totaly awesome lens.
Done with my K-30:
New Member

Registered: May, 2013
Location: Jakarta
Posts: 2
Review Date: December 16, 2014 Recommended | Price: $25.00 | Rating: 8 

Pros: bokeh, sharpness, built quality
Cons: single coating
Sharpness: 8    Aberrations: 8    Bokeh: 8    Handling: 8    Value: 9    Camera Used: K5   

mine has all metal body, the lens has good performance even it's has single coating, i love the bokeh characters

here are the samples shot:

both all in available light capture
Senior Member

Registered: September, 2013
Posts: 128
Review Date: September 30, 2013 Recommended | Price: $15.00 | Rating: 9 

Pros: this one better than the pentax M 1:2 50mm
Cons: cheap feel

Hmm, compares well to Pentax M 1:2 50mm, which I picked up at about the same time. The Pentax has a much nicer build and is more compact, but the Ricoh has sharper focus and less light distortion at low light. I played with them both extensively. Picked up the Pentax first because the materials are so much more pleasing. Got better pictures with the Ricoh.

Read on here that this lens is inconsistent. This one was a find maybe.
New Member

Registered: August, 2013
Location: Södertälje
Posts: 7
Review Date: August 16, 2013 Recommended | Price: $23.00 | Rating: 9 

Pros: Sharp from the edge to the center, lightweight, smooth m focus, cheap, vignetting,
Cons: Colours a bit to blue

A good lens with great sharpness, and good bokeh. CA a bit to high and colours seams to be a bit to "cold".
Senior Member

Registered: May, 2012
Location: Mission, B.C.
Posts: 166

1 user found this helpful
Review Date: August 16, 2013 Recommended | Price: $40.00 | Rating: 9 

Pros: Colours, sharpness, price
Cons: only f/2.0

I got this lens in a thrift store package with a makinon 135mm f/2.8 which was utter crap, an old Ricoh film body, grip, a vivitar flash, and a hard case. I paid $40 for everything, but the only thing I still use is the Ricoh 50mm. (The 135mm became a set of DIY extension tubes, since I found that the image quality was better with no glass in it)

As much as I hate to say it, every time I reach for my Pentax M 50mm f/1.4 I find myself grabbing this lens instead. It's certainly slower, and the manual focus feels nowhere near as nice, but there's just something special about the images it produces. It's not, in my experience, necessarily sharper than any other 50mm I've used, but it does have some kind of esoteric, almost magical quality to it's colours

New Member

Registered: June, 2012
Posts: 1
Review Date: August 16, 2012 Recommended | Price: $16.00 | Rating: 7 

Pros: Cheap, reasonably sharp, light
Cons: cheap feeling

A perfectly acceptable lens for the cost. Feels pretty cheap compared the pentax equivalent but the price it's not too bad at all. Sharper than many similarly aged zoom lenses.
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