NikonGear'23
Gear Talk => Lens Talk => Topic started by: Michio Akiyama on April 04, 2018, 11:43:50
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Hello Nikon friends,
The Nikon Museum is holding a special exhibition entitled "Ultra-Micro-NIKKOR - a Genealogy of the World's Highest Resolution Lenses".
I went to the special exhibition on the first day, so I would like to report you great contents.
Please browse!!
http://redbook-jp.com/redbook-e/ultra4/d060.html
Please enjoy and have fun !! Thank you.
Michio Akiyama/NIPPON A member of NikonGear and Nikon Kenkyukai Tokyo
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The holy grail of Ultra-Micro-Nikkor wow
Thank for the report!
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Akiyama-san, thank you for the reminder. I'm going to visit the museum!
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An impressive line-up of goodies from the past. Thanks for letting us have a look :D
The two Ultra-Micro-Nikkors in my possession (28/2.8, 55/2) were displayed as well ....
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thanks for sharing this visit with us
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do they still make these lenses?
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Amazing history, arigato-domo for sharing!!
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Amazing history, arigato-domo for sharing!!
+1
How many of these lenses do you own, Dr. Klaus?
Inquiring minds want to know ;)
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+1
How many of these lenses do you own, Dr. Klaus?
Inquiring minds want to know ;)
Well, I had several, got offers and sold them, to invest into lenses better suited for my UV work ;-)
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do they still make these lenses?
I don't think so. They are replaced by huge stepper lenses.
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Thanks for posting this. Many of these lenses date back to the days when chips were taped out by hand and had thousands of transistors if that many. Exacto knives and rubylith was all it took. Layers were pin registered on a big light table.
Our latest chip has 21 billion transistors on it. Dozens of mask layers. The very newest silicon processes use 13nm extreme UV light and mirrors, not lenses. Some sort of black magic is involved I think as it would otherwise be impossible!
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A 250mm f/1.0 lens???
What an amazing lineup.
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thank you for posting!.. wish i was still traveling to Tokyo, i would love to see this exhibit.
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Thanks for this great link
Now finally the existenfc of the 250 mm f/1.0 Ultra Micro Nikkor is confirmed, which was the first UMN i have read about when Peter Braczko was speculating in his Nikon Handbook about the existence of such a lens (but obviously had little clue about Nikon industriallenses. The parameters were truly impressing me.
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Some more info on these Nikkors:
https://www.mir.com.my/rb/photography/companies/nikon/nikkoresources/RF-Nikkor/Micro_RF/index2.htm
Quote from MIR:
Why would it need such a high lens speed for the 225mm f/1.0, 250mm f1.0 and 300mm/1.4 ? Nikon explained :- " ..Where (https://www.mir.com.my/rb/photography/companies/nikon/nikkoresources/RF-Nikkor/Micro_RF/images/symbol-wavelength.gif)=wavelength used (in mm) and Fe (effective f/number), which is related to the f/number (F) under formula Fe=F(1+M) ("M" =photographing magnification). From this equation, the faster the lens speed, the higher the resolution. Similarly, the shorter the wavelength used, the higher the resolution. The chart presented the relationship between the effective f/-number, operating wavelength ( (https://www.mir.com.my/rb/photography/companies/nikon/nikkoresources/RF-Nikkor/Micro_RF/images/symbol-wavelength.gif) and resolving power when calculated from the formula..".
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Very interesting. Thanks for the link.
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Some more info on these Nikkors:
https://www.mir.com.my/rb/photography/companies/nikon/nikkoresources/RF-Nikkor/Micro_RF/index2.htm
Similarly, the shorter the wavelength used, the higher the resolution.
This is very true. Currently feature sizes on semiconductors are smaller than the wavelengths used to create them requiring using multiple patterning and using the same feature on the mask to pattern two separate features on the silicon (using the diffraction effects when light passes through a slit/slits).
I would imagine that these lenses are the philosophical opposites to Michael’s beloved APO’s. They are typically highly corrected at a single wavelength with no compromise made for wide spectrum.
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here's one at home :o :o :o
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My friend Mr. Siroyagi-san's flickr is great!
He visited the Nikon Museum and took a lot of pictures for you.
Please browse, enjoy and have fun! Thank you Siroyagi-san!
Siroyagi's flickr, The Nikon Museum Special Exhibition
https://www.flickr.com/photos/siroyagi3000/sets/72157665646722947/