Author Topic: Another CPH Session with Erik  (Read 24553 times)

Jakov Minić

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Re: Another CPH Session with Erik
« Reply #60 on: November 25, 2015, 13:54:40 »
I suppose it handles easily and is not front heavy  ;D
I can hardly wait to see the Rayxar results!
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Mike G

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Re: Another CPH Session with Erik
« Reply #61 on: November 25, 2015, 14:03:22 »
Thankyou Eric

Jan Anne

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Re: Another CPH Session with Erik
« Reply #62 on: November 25, 2015, 15:34:09 »
Good to see that my old NEX C3 found a new use, thanks for sharing these images ;D
Cheers,
Jan Anne

Akira

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Re: Another CPH Session with Erik
« Reply #63 on: November 25, 2015, 15:44:34 »
A little belated response, but I would really like to see some image(s) from Ultra-Miccro-Nikkor 28/1.8...
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Bjørn Rørslett

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Re: Another CPH Session with Erik
« Reply #64 on: November 25, 2015, 17:31:36 »
It will take some time to re-familiarise myself with the Ultra-Micro-Nikkors, but here is a sample of what the UM 28/1.8 can deliver. This lens is of course sharp beyond sharp.

John Geerts

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Re: Another CPH Session with Erik
« Reply #65 on: November 25, 2015, 20:11:48 »
Great topic !  Thanks for showing and explaining it all. 

Akira

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Re: Another CPH Session with Erik
« Reply #66 on: November 25, 2015, 21:33:39 »
It will take some time to re-familiarise myself with the Ultra-Micro-Nikkors, but here is a sample of what the UM 28/1.8 can deliver. This lens is of course sharp beyond sharp.

Bjørn, thanks.  This is literally pin-sharp!  Since you haven't really used UMN 28/1.8 on the newly modified camera, I guess the image was taken with the lens reversed?  It looks like a high magnification image of some sort of crystal?
"The eye is blind if the mind is absent." - Confucius

"Limitation is inspiration." - Akira

Bjørn Rørslett

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Re: Another CPH Session with Erik
« Reply #67 on: November 25, 2015, 21:46:39 »
Correct. Ice crystals by cross-polarised light. 10X which is the stated optimum for this lens if used in reverse.

On the 1V1, the projected image of the 28/1.8 in normal position is just barely adequate in size and even at f/8, there is slight corner vignetting. Sharpness and contrast are top drawer of course as befitting the 'Ultra-Micro' designation.

Akira

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Re: Another CPH Session with Erik
« Reply #68 on: November 25, 2015, 22:15:44 »
That's well understandable.  According to Mr. Akiyama's website, the image circle of the 28/1.7 is 8mm.  The image circle of 28/1.8 would not be that different.
"The eye is blind if the mind is absent." - Confucius

"Limitation is inspiration." - Akira

Bjørn Rørslett

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Re: Another CPH Session with Erik
« Reply #69 on: November 26, 2015, 08:38:02 »
Akira asked for images with the Ultra-Micro 28 mm f/1.8 in its normal position. The optimal reproduction ratio should be 1:10, but in order to avoid the worst of vignetting, I set the lens to 1:5 instead. Also note this lens is designed for the e-line of the spectrum, ie. around 540 nm. So the outcome for visible light with the lens mounted on V1 [52 mm mount] is *not* optimum, but given the initial ultra high performance, one should still expect a decent image.

Food for thought that Kodak, in the last death throes of the company, tried to expand into the digital domain ignored by them just a little earlier ...


Nikon 1V1 (52m mount), Ultra-Micro-Nikkor 28 mm f/1.8, ISO 100, f/5.6, studio flash

Akira

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Re: Another CPH Session with Erik
« Reply #70 on: November 26, 2015, 09:59:31 »
Thanks, Bjørn.  Even it is set outside of the designed range, the sharpness and the absence of LoCA can be well worth cherishing.
"The eye is blind if the mind is absent." - Confucius

"Limitation is inspiration." - Akira