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I read your post about the Cosinon as well (post title : Triple Underdog – 3 Humble 50mm Lenses That Far Exceeded Expectations). This design is used for many slower normal lenses, including the 50mm f/1.8 Nikon Lens Series E, Olympus OM 50mm f/1.8, Konica AR Hexanon 50mm f/1.7, etc. (Exc+5) Ricoh XR Rikenon 50mm F2 L MF Standard Prime Lens from japan #358. Number of bids and bid amounts may be slightly out of date. I gad a Cosina 50mm for a while, I think it was either f/1.8 or f/2. C $135.81; or Best Offer; Calculate Shipping ; From United States; Rare! I really, really like the bokeh of these lenses wide open, and the sharp areas are plenty crisp for my needs. Otherwise, you have made a mistake and restart the process of re-installing the helicoids. It’s a real gem. Change ), You are commenting using your Google account. I took a few evenings to figure out how to disassemble the lens, and clean up the fungus. Clean them all, hydrogen peroxide to remove fungus, alcohol to clean and dry. Mine is the non-XR, non-P version - a simple Rikenon 50mm F2, which makes it one of the most basic models from Ricoh. The filter ring and collar slides out (not unscrew). What lens would you recommend in Pentax K mount? Showing that the lens has significant barrel distortion. Change ), You are commenting using your Facebook account. You can get basic data of this lens from the Pentax Forum Ricoh XR Rikenon 50mm f/2.0. - Ricoh XR-20SP 35mm SLR Film Camera c/w Rikenon-P 50mm f/2 Lens Kit - Near Mint! Again a decent, well build lens. Pre-Owned. I usually would take a few more measurements, some mentally, before I remove the HK. I’m planning on getting rid of one of the 2. Then I tried it on my NEX, and got a lucky “right place right time” shot of a robin with the Rikenon wide open at f/2 that remains one of my favourite ever images I’ve made. What initially seemed weaknesses turned into pluses. Like you, I was really skeptical about it (especially for being JUST f/2), but like you, I was definitely blown away by the results, especially the bokeh. And to be certain, the extension of the OUH from the rear of the barrel. My Take on Photography (Lens Repairs Mostly). Change ), You are commenting using your Google account. Whilst the focus ring is not quite as smooth as a runny honey dripping from hot toast, it’s silky enough that you never think about it. Further out you can see 3 screws holding a shim that locks the FR to the FRH. While this lens is nice, I don’t think it stands out if placed against such lens as the 50mm f/1.8 Nikkor (any version except E), or 50mm f/1.7 MC/MD, or 50mm f/1.7 AR, …, the list goes on. It was only upon bringing out the lens that the dry helicoid was so annoying to me that I took an evening to clean up the helicoids and applied new grease to them. This design is used for many slower normal lenses, including the 50mm f/1.8 Nikon Lens Series E, Olympus OM 50mm f/1.8, Konica AR Hexanon 50mm f/1.7, etc. Optical design of the XR Rikenon 50mm f/2 – a conventional 6 elements / 5 groups design. Disclaimer: all information in this blog is meant for sharing of experience and not as instruction, and is no substitute for diligent learning and assessment of competence. Don’t ask me how many 50mm/55mm lens there are in my little collection…. Change ), You are commenting using your Twitter account. Edit them in the Widget section of the, Nikon 35mm f/2.8 AiS Tear Down and Overhaul, Canon 50mm f/1.8 FD SC (Version I) Overhaul (with f/1.4 FD SSC Version I notes), Lens Repair (2): Major Parts of a Lens (Manual Focus), Rikenon XR 50mm f/2 S – Fungus Cleaning – My Take on Photography (Lens Repairs Mostly). Someone gave me a faulty (unbeknownst to them, they were just offloading some old stuff) Ricoh KR-10 with this lens attached. The long lever does the actual coupling with the AU. I am an engineer by training, I enjoy photography, love listening to music, and am addicted to scuba diving; hence the nick diediemustdive. I actually have a Pentax M 50mm f1.7 as well as the Ricoh I mentioned, along with a 'RIKENON 1:2 50mm' (from the lens front). Then return the filter ring and fix it back, again the reverse process. Thanks Cam, it’s a great lens. Some would scratch a line on the OUH. That minimum focus of 0.6m is a bit disappointing for someone like myself who loves shooting up close. I can’t tell. Meaning it’s very easy to remember where you are on the scale even if you’re not looking at it. Copyright © 1995-2020 eBay Inc. All Rights Reserved. I hardly ever use f/11 or smaller, so the most I have to click is four stops from f/2 to f/8 or vice versa. ( Log Out /  Turning the OUH to the right, counting revolution, and slowly to detect the point of separation of OUH from the FRH. 3 screws hold the aperture coupling unit to the barrel, remove and slide out the aperture coupling unit, carefully and observe linkages. Ricoh XR Rikenon 50mm f/1.7 is a fast manual focus prime lens for SLR cameras. Lens Love is an ongoing series of posts about the vintage lenses I’ve used and loved most. Perhaps not so please with the barrel distortion. The expansive use of plastic make it very light – around 135g. I have messed up my fair share of lenses, and will not be held responsible for any damage caused in the reader’s venture into this fascinating world of mechanical and optical marvel. Have you tried a Rikenon 50/2? You should be conversant with lens repair techniques; beginners should read my earlier blog posts – the Lens Repair series (Lens Repair (1): Some Thoughts, Lens Repair (2): Major Parts of a Lens (Manual Focus), Lens Repair (3): Working from the rear…, Lens Repair (4): Coming from the front, Lens Repair (5): Helicoids) and Richard Haw’s excellent write-ups (Camera and Lens Repair Essentials, Best Practices (part 1), Best Practices (part 2), Best Practices (part 3) and Working with Helicoids). Most 50s need stopping down two or three stops before they really perform, negating their f/1.4 or f/1.7 advantage, and losing the shallow depth of field and round highlights you get shooting wide open. Widen the net to Pentax K mount film bodies by other brands (including Ricoh themselves) and digital options (Pentax DLSRs and others via adapters) and there’s a winning combination out there for all of us. I usually do the “out-the-window” method, pointing the camera to infinity, and turning the FRH to fix the position of the 3 helicoids at infinity. Please let us know in the comments below. My curiosity was piqued. Due to the fact that lens has 6-bladed aperture, the subjects located outside the depth of field may be shown which the nuts-effect in the bokeh. You can use them to display text, links, images, HTML, or a combination of these. ( Log Out /  My lens came with fungus, dry helicoid, and a dented filter ring. Adventures Of The Wide Eyed Wonder #1 – 35hunter, Why A Pentax Espio Should Be Top Of Your Compact Film Camera Wishlist, Which Helios 44 Lens To Buy (And Why You Need One), Petri CC Auto 55mm f/1.8 M42 Lens - First Thoughts, How I Shoot Film Simply Without A Light Meter, When You Don’t Realise How Right You Got It The First Time, How To Find The Flow – Habits And Expectations. Yes I’m talking to you again Pentax-A lenses! I would usually measure the diameter of the ball bearing, in case I lose it, and I did, I know what diameter ball bearing I will be needing. Could this lens really be as good as a Summicron costing many times, probably twenty to fifty times (and in my case closer to one hundred and fifty times), more? One Japanese blogger did that; perhaps you would visit his blog to see if you agree that the Rikenon is worthy of such accolade. Amounts shown in italicized text are for items listed in currency other than Canadian dollars and are approximate conversions to Canadian dollars based upon Bloomberg's conversion rates. When I first held a Rikenon 50/2 I was underwhelmed, to say the least. Against the likes of the lovely SMC Pentax-M 50/1.7 and almost as lovely Auto Chinon 50/1.7 – both of which are faster, better built (plus more metal) and focus to 0.45m – I didn’t expect the Rikenon to hang around long. Turn the assembly to the back, and if the HK slots and screw holes line up nicely, success! Top Rated Seller Top Rated Seller. There’s an f/1.7 version that came as the kit lens on some of the later Ricoh bodies too, but it’s no better than the f/2 in my opinion. At this point you will want to study the rear connections before proceeding. The so called Pancake Pentax 40mm f/2.8 is only 25g lighter and 12mm flatter, and by all accounts is not a great performer. Change ), This is a text widget, which allows you to add text or HTML to your sidebar. What I’m more interested in is what specifically about a lens makes me love using it, and why I believe you should try one too. Ricoh XR-7 with Rikenon P 50mm F2.0 Lens and Ricoh XR 240 Flash Package. ( Log Out /  Clean them. Re-install the rest of the lens following the reverse of the disassembly process, up to the point of FR and filter ring, don’t install them yet. You can get basic data of this lens from the Pentax Forum Ricoh XR Rikenon 50mm f/2.0. Recently, I got this one and also the Cosinon 50mm 1.8 with a film camera. C … Front optical unit (Front OU), aperture unit (AU) and rear OU integrated into a unit with the OU helicoid (OUH); Index collar and aperture coupling/stop-down mechanism combined into a single unit. My SMC Pentax-M 50/1.7, for example, needs eight clicks to go from wide open to f/8. Stop and study. And I also did washing of the lens barrel, FR and AR. Front view of the aperture coupling unit. Plus as they’re Pentax K mount, the film and digital body options made by Pentax alone are vast. When I first worked on this lens, I was just started out in lens repair.

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