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Robert Vonk
Fotohuis
Netherlands
100 Posts
My Collection
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 Posted - Nov 16 2013 : 11:24:24 AM
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Testing in the Dutch Analogue Photo Forum, maybe interesting here too.
I know this J-8 is a great lens.
Here a picture in the war museum Overloon. F/2,0 on Fomapan Creative 200 film, E.I. 160 and developed in Xtol 1+1 for 9:00 minutes at 20C. Zorki 4K.
This test will be done on high resolution micro film, ATP1,1 (Rollei-Agfa Gevaert).
More soon ......... 
Ðîáåðò
"De enige beperking in je fotografie ben je zelf"
http://gallery.fotohuisrovo.nl/
http://www.flickr.com/photos/fotohuisrovo/ |
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Jacques M.
France
2575 Posts |
Posted - Nov 19 2013 : 08:09:45 AM
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A great idea to make comparisons between several lenses.
I wait for the next post...
Thanks, Robert.
Jacques. |
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Robert Vonk
Fotohuis
Netherlands
100 Posts
My Collection
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Posted - Nov 19 2013 : 10:52:14 AM
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J-8 with ATP1,1 (Rollei) in R.L.C. (Film Low Gamma) 1+5.
Edit: F/3,5 for the reason mentioned below.
J-8 (Fuji pro 160S).
Summicron (Fuji pro 160S)
Edit: Color film has a much lower resolution. A top notch film like Velvia 50 (E-6) can reach 85lp/mm. This pro 160S Fuji C-41 film maybe around 65lp/mm.
Robert
"De enige beperking in je fotografie ben je zelf"
http://gallery.fotohuisrovo.nl/
http://www.flickr.com/photos/fotohuisrovo/ |
Edited by - Fotohuis on Nov 22 2013 5:13:58 PM |
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Robert Vonk
Fotohuis
Netherlands
100 Posts
My Collection
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Posted - Nov 22 2013 : 12:57:38 PM
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I will test the Industar-61 without Lanthanium from Jacques in this test too. It is from 1967 together with a FED 3 50 years of the CCCP revolution special edition. As soon as it has been arrived from France I will take it in this test too.
Jacques, merci pour envoyer cette camera et objectiv de les Pays-Bas.
Robert
"De enige beperking in je fotografie ben je zelf"
http://gallery.fotohuisrovo.nl/
http://www.flickr.com/photos/fotohuisrovo/ |
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Jacques M.
France
2575 Posts |
Posted - Nov 22 2013 : 4:00:27 PM
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You should have it soon!
Jacques. |
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Robert Vonk
Fotohuis
Netherlands
100 Posts
My Collection
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Posted - Nov 22 2013 : 5:00:28 PM
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Not in this test but done before is the Jupiter-12 F/2,8-35mm (Biogon type).
Here also an example on ATP1,1 in RLC 1+5. BTW all pics with this film will be made on almost open aperture due to the fact that the resolution of a lens will go down rapidly when closing the aperture.
In this example F/3,5. This ATP1,1 film can reach approx. 400lp/mm but on a high contrast light situation. In most regular photographic circumstances and in the studio, 1:8 in contrast which means just over 250lp/mm for this film.
Closing the aperture means approx. this calculation:
Again using ideal values for the Rayleigh limit, and applying the contrast theory of Kühler, the resolution for the average wavelength of light (0,555 micron) is:
Aperture Resolution
(F/)
1,4 550 lp/mm
2.0 385 lp/mm
2.8 263 lp/mm
4,0 185 lp/mm
5.6 135 lp/mm
8.0 94 lp/mm
11.0 69 lp/mm
Source and (c): IMX (2001) Erwin Puts.
Here the example with this nice and small compact gem:
F/3,5 which means a theoretically around 220lp/mm.
Robert
"De enige beperking in je fotografie ben je zelf"
http://gallery.fotohuisrovo.nl/
http://www.flickr.com/photos/fotohuisrovo/ |
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Jeff Bridge
Jeffbridge
13 Posts |
Posted - Mar 10 2014 : 12:48:19 AM
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| Nice shots, looking forward to seeing more. |
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Robert Vonk
Fotohuis
Netherlands
100 Posts
My Collection
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Jupiter-8 versus Industar-61 L/D versus Summicron
