Jupiter-8 versus Industar-61 L/D versus Summicron

Testing in the Dutch Analogue Photo Forum, maybe interesting here too.

http://farm6.staticflickr.com/5524/10728650555_dc97b04c8e_z.jpg

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.

http://farm9.staticflickr.com/8515/8592769790_9014d510be_z.jpg

This test will be done on <i>high resolution micro film</i>, <b>ATP1,1</b> (Rollei-Agfa Gevaert).

More soon ......... [8D]

Ðîáåðò
"De enige beperking in je fotografie ben je zelf"
http://gallery.fotohuisrovo.nl/
http://www.flickr.com/photos/fotohuisrovo/

A great idea to make comparisons between several lenses.
I wait for the next post...

Thanks, Robert.
Jacques.

http://farm9.staticflickr.com/8049/8380466439_5b7226ef61_c.jpg

J-8 with ATP1,1 (Rollei) in R.L.C. (Film Low Gamma) 1+5.
Edit: F/3,5 for the reason <i>mentioned below</i>.

http://farm9.staticflickr.com/8526/8468096458_d5cd01cea0_c.jpg

J-8 (Fuji pro 160S).

http://farm9.staticflickr.com/8365/8467000909_f700db91a5_c.jpg

Summicron (Fuji pro 160S)

Edit: Color film has a much <i>lower</i> 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/

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/

You should have it soon![:)]

Jacques.

Not in this test but done before is the <i>Jupiter-12</i> 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:

http://farm9.staticflickr.com/8215/8380173529_cbf9f29e5e_c.jpg

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/

Nice shots, looking forward to seeing more.

Going further in my test.
My films used now: Ortho-25 and RPX-25, both from Rollei/OrWo Filmotec.

Robert
"De enige beperking in je fotografie ben je zelf"
http://gallery.fotohuisrovo.nl/
http://www.flickr.com/photos/fotohuisrovo/