Carl Zeiss Jena DDR Biometar 2.8/120

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Carl Zeiss Jena DDR Biometar 2.8/120

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LittleAlex

Joined: 27 Nov 2008
Posts: 1687
Location: L'vov (Western Ukraine)

Posted: Mon Sep 02, 2024 7:21 pm Post subject:

LittleAlex wrote:

caspert79 wrote:

Its very easy to misfocus, compared to a non-macro lens, which could be the case here. .

Well, I will give it the second try.
_________________
"Sharpness is a bourgeois concept" - © H. Cartier Bresson

Noritar

Joined: 25 Jul 2024
Posts: 20

Posted: Mon Sep 02, 2024 8:31 pm Post subject:

Noritar wrote:

LittleAlex wrote:

Well, I will give it the second try.

If you're taking requests, can we see something at a portrait distance?

visualopsins

Joined: 05 Mar 2009
Posts: 10959
Location: California

Supporting Member

Expire: 2025-04-11

Posted: Mon Sep 02, 2024 9:33 pm Post subject:

visualopsins wrote:

caspert79 wrote:

LittleAlex wrote:

stevemark wrote:

If that's true then something's wrong with your Mamiya Sekor C 4/120mm Macro.

S

Well, nearly the same I experienced with Mamiya-Sekor 645 Macro 80mm f/4. I also expected the extreme sharpness from it on the general planes/ However, at the open diaphragm it was very mediocre.

Old macro lenses very frequently are not too good on the far away distances. because it had been calculated for the close distances. Even when it has the floating element.

I briefly had the Mamiya 120/4, and in my memory it was really good at distance as well. Unfortunately I only kept the images taken at short distance. But, a thing with the Mamiya 120/4 and the 80/4 probably as well, is that its focus throw is very short from about 5 feet to infinity. Its very easy to misfocus, compared to a non-macro lens, which could be the case here. Then there’s also the possibility of something being wrong. But the Mamiya 120/4 should be very good at any distance IMO.

From the results shown above the best is Mamiya M645 Macro MF 120mm f/4 f/5.6
_________________
☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ like attracts like! ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮

Cameras: Sony ILCE-7RM2, Spotmatics II, F, and ESII, Nikon P4
Lenses:
M42 Asahi Optical Co., Takumar 1:4 f=35mm, 1:2 f=58mm (Sonnar), 1:2.4 f=58mm (Heliar), 1:2.2 f=55mm (Gaussian), 1:2.8 f=105mm (Model I), 1:2.8/105 (Model II), 1:5.6/200, Tele-Takumar 1:5.6/200, 1:6.3/300, Macro-Takumar 1:4/50, Auto-Takumar 1:2.3 f=35, 1:1.8 f=55mm, 1:2.2 f=55mm, Super-TAKUMAR 1:3.5/28 (fat), 1:2/35 (Fat), 1:1.4/50 (8-element), Super-Multi-Coated Fisheye-TAKUMAR 1:4/17, Super-Multi-Coated TAKUMAR 1:4.5/20, 1:3.5/24, 1:3.5/28, 1:2/35, 1:3.5/35, 1:1.8/85, 1:1.9/85 1:2.8/105, 1:3.5/135, 1:2.5/135 (II), 1:4/150, 1:4/200, 1:4/300, 1:4.5/500, Super-Multi-Coated Macro-TAKUMAR 1:4/50, 1:4/100, Super-Multi-Coated Bellows-TAKUMAR 1:4/100, SMC TAKUMAR 1:1.4/50, 1:1.8/55
M42 Carl Zeiss Jena Flektogon 2.4/35
Contax Carl Zeiss Vario-Sonnar T* 28-70mm F3.5-4.5
Pentax K-mount SMC PENTAX-A ZOOM 1:3.5 35~105mm, SMC PENTAX ZOOM 1:4 45~125mm
Nikon Micro-NIKKOR-P-C Auto 1:3.5 f=55mm, NIKKOR-P Auto 105mm f/2.5 Pre-AI (Sonnar), Micro-NIKKOR 105mm 1:4 AI, NIKKOR AI-S 35-135mm f/3,5-4,5
Tamron SP 17mm f/3.5 (51B), Tamron SP 17mm f/3.5 (151B), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)

LittleAlex

Joined: 27 Nov 2008
Posts: 1687
Location: L'vov (Western Ukraine)

Posted: Thu Sep 05, 2024 8:10 pm Post subject:

LittleAlex wrote:

visualopsins wrote:

From the results shown above the best is Mamiya M645 Macro MF 120mm f/4 f/5.6

I did the second try. Better condition, and the better subject for the test:

Biometar 120/2.8 Phase One 645 DF+ P-25

f/4.0

Mamiya M645 Macro MF 120mm f/4

f/4.0

Biometar 120/2.8 Phase One 645 DF+ P-25

f/8.0

Mamiya M645 Macro MF 120mm f/4

f/8.0

_________________
"Sharpness is a bourgeois concept" - © H. Cartier Bresson

visualopsins

Joined: 05 Mar 2009
Posts: 10959
Location: California

Supporting Member

Expire: 2025-04-11

Posted: Thu Sep 05, 2024 10:04 pm Post subject:

visualopsins wrote:

LittleAlex wrote:

visualopsins wrote:

From the results shown above the best is Mamiya M645 Macro MF 120mm f/4 f/5.6

I did the second try. Better condition, and the better subject for the test:

Biometar 120/2.8 Phase One 645 DF+ P-25

f/4.0

Mamiya M645 Macro MF 120mm f/4

f/4.0

(this one doesn't show)

Biometar 120/2.8 Phase One 645 DF+ P-25

f/8.0

Mamiya M645 Macro MF 120mm f/4

f/8.0

Biometar 120/2.8 Phase One 645 DF+ P-25 roofs show better sharpness, however the Mamiya M645 Macro MF 120mm color saturation is much better. Also the Mamiya M645 Macro MF 120mm may be focused slightly different maybe to account for sharp difference.
_________________
☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ like attracts like! ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮

Cameras: Sony ILCE-7RM2, Spotmatics II, F, and ESII, Nikon P4
Lenses:
M42 Asahi Optical Co., Takumar 1:4 f=35mm, 1:2 f=58mm (Sonnar), 1:2.4 f=58mm (Heliar), 1:2.2 f=55mm (Gaussian), 1:2.8 f=105mm (Model I), 1:2.8/105 (Model II), 1:5.6/200, Tele-Takumar 1:5.6/200, 1:6.3/300, Macro-Takumar 1:4/50, Auto-Takumar 1:2.3 f=35, 1:1.8 f=55mm, 1:2.2 f=55mm, Super-TAKUMAR 1:3.5/28 (fat), 1:2/35 (Fat), 1:1.4/50 (8-element), Super-Multi-Coated Fisheye-TAKUMAR 1:4/17, Super-Multi-Coated TAKUMAR 1:4.5/20, 1:3.5/24, 1:3.5/28, 1:2/35, 1:3.5/35, 1:1.8/85, 1:1.9/85 1:2.8/105, 1:3.5/135, 1:2.5/135 (II), 1:4/150, 1:4/200, 1:4/300, 1:4.5/500, Super-Multi-Coated Macro-TAKUMAR 1:4/50, 1:4/100, Super-Multi-Coated Bellows-TAKUMAR 1:4/100, SMC TAKUMAR 1:1.4/50, 1:1.8/55
M42 Carl Zeiss Jena Flektogon 2.4/35
Contax Carl Zeiss Vario-Sonnar T* 28-70mm F3.5-4.5
Pentax K-mount SMC PENTAX-A ZOOM 1:3.5 35~105mm, SMC PENTAX ZOOM 1:4 45~125mm
Nikon Micro-NIKKOR-P-C Auto 1:3.5 f=55mm, NIKKOR-P Auto 105mm f/2.5 Pre-AI (Sonnar), Micro-NIKKOR 105mm 1:4 AI, NIKKOR AI-S 35-135mm f/3,5-4,5
Tamron SP 17mm f/3.5 (51B), Tamron SP 17mm f/3.5 (151B), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)

LittleAlex

Joined: 27 Nov 2008
Posts: 1687
Location: L'vov (Western Ukraine)

Posted: Thu Sep 05, 2024 10:07 pm Post subject:

LittleAlex wrote:

visualopsins wrote:

Also the Mamiya M645 Macro MF 120mm may be focused slightly different maybe to account for sharp difference.

I did try my best.
_________________
"Sharpness is a bourgeois concept" - © H. Cartier Bresson

visualopsins

Joined: 05 Mar 2009
Posts: 10959
Location: California

Supporting Member

Expire: 2025-04-11

Posted: Thu Sep 05, 2024 10:38 pm Post subject:

visualopsins wrote:

LittleAlex wrote:

visualopsins wrote:

Also the Mamiya M645 Macro MF 120mm may be focused slightly different maybe to account for sharp difference.

I did try my best.

Yes indeed! Thanks! (I would not try to compete)
_________________
☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ like attracts like! ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮

Cameras: Sony ILCE-7RM2, Spotmatics II, F, and ESII, Nikon P4
Lenses:
M42 Asahi Optical Co., Takumar 1:4 f=35mm, 1:2 f=58mm (Sonnar), 1:2.4 f=58mm (Heliar), 1:2.2 f=55mm (Gaussian), 1:2.8 f=105mm (Model I), 1:2.8/105 (Model II), 1:5.6/200, Tele-Takumar 1:5.6/200, 1:6.3/300, Macro-Takumar 1:4/50, Auto-Takumar 1:2.3 f=35, 1:1.8 f=55mm, 1:2.2 f=55mm, Super-TAKUMAR 1:3.5/28 (fat), 1:2/35 (Fat), 1:1.4/50 (8-element), Super-Multi-Coated Fisheye-TAKUMAR 1:4/17, Super-Multi-Coated TAKUMAR 1:4.5/20, 1:3.5/24, 1:3.5/28, 1:2/35, 1:3.5/35, 1:1.8/85, 1:1.9/85 1:2.8/105, 1:3.5/135, 1:2.5/135 (II), 1:4/150, 1:4/200, 1:4/300, 1:4.5/500, Super-Multi-Coated Macro-TAKUMAR 1:4/50, 1:4/100, Super-Multi-Coated Bellows-TAKUMAR 1:4/100, SMC TAKUMAR 1:1.4/50, 1:1.8/55
M42 Carl Zeiss Jena Flektogon 2.4/35
Contax Carl Zeiss Vario-Sonnar T* 28-70mm F3.5-4.5
Pentax K-mount SMC PENTAX-A ZOOM 1:3.5 35~105mm, SMC PENTAX ZOOM 1:4 45~125mm
Nikon Micro-NIKKOR-P-C Auto 1:3.5 f=55mm, NIKKOR-P Auto 105mm f/2.5 Pre-AI (Sonnar), Micro-NIKKOR 105mm 1:4 AI, NIKKOR AI-S 35-135mm f/3,5-4,5
Tamron SP 17mm f/3.5 (51B), Tamron SP 17mm f/3.5 (151B), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)

Noritar

Joined: 25 Jul 2024
Posts: 20

Posted: Fri Sep 06, 2024 1:09 am Post subject:

Noritar wrote:

LittleAlex wrote:

I did the second try. Better condition, and the better subject for the test:

This is very helpful test.

I performed a detailed Schwartz-Kraft spacial analysis and the results are in: both lenses are very good.

LittleAlex

Joined: 27 Nov 2008
Posts: 1687
Location: L'vov (Western Ukraine)

Posted: Fri Sep 06, 2024 5:20 am Post subject:

LittleAlex wrote:

Noritar wrote:

This is very helpful test.

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