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on Jan 14, 2017 23:31:37 GMT
Posted: Jan 14, 2017 23:31:37 GMT
I just realised that Yus Automatic 135mm 2.8 is in 2 versions, 55 and 58mm
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on Feb 10, 2017 20:28:45 GMT
Posted: Feb 10, 2017 20:28:45 GMT
MW classic have several Pentamatic lenses at the moment including a 5.5cm 1.8 Auto Yashinon-R which is, so far missing from the list.
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on Feb 11, 2017 8:39:40 GMT
Last Edit: Feb 11, 2017 8:44:06 GMT by biggles3
MW classic have several Pentamatic lenses at the moment including a 5.5cm 1.8 Auto Yashinon-R which is, so far missing from the list. Interestingly they have incorrectly named it - the photos show it is the lens shown in the list; it's not an '-R' lens but an Auto Yashinon. The M42 version already listed is the same lens but with the universal mount. |
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on Mar 5, 2017 21:25:49 GMT
Posted: Mar 5, 2017 21:25:49 GMT
Is there a list of how much all these lenses were sold for back in the says?
Just curious.
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on Mar 6, 2017 1:52:01 GMT
Posted: Mar 6, 2017 1:52:01 GMT
Is there a list of how much all these lenses were sold for back in the says? Just curious. Hell yashimo.
We don't have prices set against the lenses but if you've been keeping an eye on the new section for Advertisements, Brochures and Novelties you will see prices on some of the brochures and advertisements; I have tried to give the year that they appeared. The difficulty is that US prices were always around 2/3 of those we paid in Europe and back in the 1960s, different Governments levied varying rates of tax on purchases and there were often agreements by retail groups to set minimum trade prices - a practice that was eventually abolished as it was very anti-competitive.
The other difficulty is that the prices would vary with time, depending on market conditions; in the USA in particular, items were regularly discounted by large retailers so which is the real price: the discounted one by a big company or the higher one you'd find in your local camera shop?
What is quite interesting where we do have prices shown is the relationship between the costs of lenses within the Yashica line-up. Yesterday, I uploaded a 1982 ad for a variety of Yashica and Contax/Zeiss cameras, lenses and accessories from a leading, independent retailer (he had only one store but it was highly regarded) - the ML 21mm (pretty expensive these days) cost less than the ML 80-200 (pretty cheap nowadays) and ML 300mm (getting more expensive but still a lot less than the 21mm). It was almost as if you paid for lenses according to their physical size! 
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on Mar 13, 2017 19:04:24 GMT
Posted: Mar 13, 2017 19:04:24 GMT
Yashica DSB 24m f2.8  Why is on our list??? |
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on Mar 13, 2017 20:50:45 GMT
Posted: Mar 13, 2017 20:50:45 GMT
Yashica DSB 24m f2.8 Why is on our list??? Hi dragos,
There were not many made it's true but your question allowed me to correct an error; we had the optical formula as 9/8 and I have just amended it to the correct 8/8 ratio.
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on Mar 13, 2017 22:37:18 GMT
Posted: Mar 13, 2017 22:37:18 GMT
Thanks for your answer. Someone have it or there is any image available?
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on Mar 14, 2017 21:21:39 GMT
Posted: Mar 14, 2017 21:21:39 GMT
Thanks for your answer. Someone have it or there is any image available? They are very, very hard to find as so few were made and I don't think many left Japan. Here's a low resolution image taken from the internet...
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on Mar 15, 2017 7:39:51 GMT
Posted: Mar 15, 2017 7:39:51 GMT
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on Mar 15, 2017 8:27:16 GMT
Posted: Mar 15, 2017 8:27:16 GMT
Fascinating...
Why on earth would Yashica commission an outside manufacturer to produce a single-coated C/Y lens under the Yashica brand when it had the ML version which is recognised as a bit of a star and it's previous M42 DS-M type which was multi-coated and an even stronger performer than the ML?? I suppose the answer might become apparent if we discover the year of manufacture...
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on Mar 16, 2017 9:05:47 GMT
Posted: Mar 16, 2017 9:05:47 GMT
There's no doubt, even from the image posted here, that it's the late 80s to early 90s RMC Tokina, and on that basis I'd be slightly surprised if it was only single coated. I owned the Tokina lens in Pentax K, years ago and it seemed OK but it was the first wide lens I owned therefore I didn't have much to compare it with!
More recently I had a slightly dodgy one (stuck aperture) in FD mount and it was comfortably the weakest of a bunch of 24/2.8 manual focus lenses I tried on my Sony A7r. The sharpest by far, incidentally, was the Olympus OM, which trashed the Yashica ML, Canon FD and Sigma Super-Wide II all of which were quite close in performance.
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on Mar 25, 2017 13:48:57 GMT
Posted: Mar 25, 2017 13:48:57 GMT
Just a quick note to confirm that the database has been updated today to account for exclusively Kyocera-branded AF lenses (28-70, 28-85, 35-70, 70-210 f4-5.6 & 80-200) along with some of the optical formulae for the AF range.
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on Mar 4, 2019 20:07:15 GMT
Last Edit: Mar 4, 2019 20:14:27 GMT by biggles3
Well, yet another surprise lens...
This spotted today on Ebay:
Yash ML C 28mm
It must be a Cosina-manufactured lens as it's similar in overall size and shape to the Yashica MC 28mm f2.8 prototype lens (Serial: A00008) we discussed a year or so ago; it does not appear to have the same macro capability as the MC lens. However from its serial number 93100544, a few hundred would appear to have been produced for the Asian market. I have no idea as to its optical formula - a search through Cosina lenses might reveal it...
The lens has been added to the master list. |
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on Apr 23, 2019 5:15:14 GMT
Posted: Apr 23, 2019 5:15:14 GMT
I have some fairly obscure lens additions for both the Leica and Pentamatic mounts. I have photos and ad/brochure references of all of them (except ad/brochure for Yashikor f/2). Images of the Leica mount ones and other proof are on my website but note, the reference I quote is Japanese authority, Mikio Awano who wrote the foreword to Sugiyama's book and also the book's Nicca and YE/YF entries amongst others. I'll do the Leica mount ones first. The lens list refers to the "Yashikor 50mm f2.8 L39". There are actually two different lenses with this name. Lenses with serial numbers starting with "81" have a purplish coating, 9 curved aperture blades and unevenly spaced aperture markings. Construction is believed to be 4/3 (Tessar). Lenses beginning with "91" (the majority) have an amber coating, 6 straight aperture blades and evenly spaced aperture markings. Construction is believed to be 5/4. There are other differences too including weight/dimensions. I have one 81 and two 91 lenses - counting reflections seems to confirm the construction. There is also an unadvertised Yashikor 50mm f2 L39 (construction unknown) that appears to have been sold with some YFs (possibly Japan only). This is a rebadged "Leonon-S" commonly found as a standard lens on the Leotax S2 Elite rangefinder released in 1960 (there were three Leonon f2 50mm lenses, two named "Leonon-S" and one plain "Leonon", all different to each other but some similarities too, I suspect that at least one, probably not this one, is a rebadged Topcor). The lens list refers to the "Yashinon 50mm f1.8 L39". There is also a later version called "Super-Yashinon" which appears identical (Mikio says this came first, in this one case he is wrong). Construction for both is 6/5. Super-Yashinon f2.8 100mm L39 (construction unknown). Advertised in both Japan and US (also an f2.8 35mm but never seen by me, or more importantly, Mikio). Super Yashinon f3.5 135mm L39, construction 4/3, note, no hyphen in name. Advertised in Japan. Rebadged Super-Acall made by Kyoei Optical Co., Ltd. Also found as a rebadged "Honor" for the Honor rangefinder camera and Bittco Super Vemar amongst other names. Contrary to some popular blogs, Kyoei was an actual lens maker and not a rebadge of Komura lenses (although their 35mm lens may be more than a close copy). |
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