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vyky
Joined: 04 Dec 2018
Posts: 7
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 Posted: Tue Dec 04, 2018 5:47 pm Post subject: MINOLTA 200mm F4 MD TELE ROKKOR problem |
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vyky wrote:
Hello guys,
I just received my first manual lens for my A7ii. After stepped down, this is showing, making the image very soft in the center (even stepped up, but the "cross" transforms into big white spot.
No problems with other younger lenses. Visually almost clean, the rear lens has litle spots and generally minumum dust inside.
Im using novoflex adapter. It is visible indoors and outdoors, almost at any angle with most backgrounds.
Is the item faulty?
Thanx for any advices,
Vyky
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visualopsins
Joined: 05 Mar 2009
Posts: 10528
Location: California
Expire: 2025-04-11
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| Posted: Tue Dec 04, 2018 7:32 pm Post subject: Re: MINOLTA 200mm F4 MD TELE ROKKOR problem |
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visualopsins wrote:
| vyky wrote: |
Hello guys,
I just received my first manual lens for my A7ii. After stepped down, this is showing, making the image very soft in the center (even stepped up, but the "cross" transforms into big white spot.
No problems with other younger lenses. Visually almost clean, the rear lens has litle spots and generally minumum dust inside.
Im using novoflex adapter. It is visible indoors and outdoors, almost at any angle with most backgrounds.
Is the item faulty?
Thanx for any advices,
Vyky
[/img][/img] |
Welcome vyky
Some lenses have sensor reflections looking similar, due to flat rear element or lack of coatings on an element. Sorry I don’t know about your lens. Somebody here will know...
_________________
☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ 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 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 (51BB), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)
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jamaeolus
Joined: 19 Mar 2014
Posts: 2927
Location: Eugene
Expire: 2015-08-20
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| Posted: Tue Dec 04, 2018 8:18 pm Post subject: |
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jamaeolus wrote:
I get similar artifacts on certain lenses with a helicoid adapter nex to m42. (most notably the asahi pentax 50mm macro) Mine is caused by inferior interior blackening or grease. The light bounces off the shiny stuff and onto the sensor. It only does it with certain lenses though. Can you try a different adapter? They are quite inexpnsive.
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photos are moments frozen in time |
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vyky
Joined: 04 Dec 2018
Posts: 7
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| Posted: Tue Dec 04, 2018 8:54 pm Post subject: |
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vyky wrote:
I dont have another yet. I have only Novoflex (which should be the best against reflections).
Ill probably return the lens and buy other type (noticed, that there is difference between the MD types (didnt know that) and that my type is missing some polstering around the back lens)).
But thanx for answer.
Vyky |
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Antoine
Joined: 08 Jan 2016
Posts: 298
Location: London
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| Posted: Tue Dec 04, 2018 9:04 pm Post subject: |
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Antoine wrote:
Never seen such effect with Minolta 200 mm f4!... Bizarre...is it the 400grams version or the 520 grams version?
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Antoine
Sony A6000 APS-C and Sony A7 Rii
Minolta Fisheye MD Rokkor 7.5 mm f4, Fisheye MD 16 f2.8 MD R 17mm f4, MD R 20mm f2.8, MC VFC & MDIII 24mm f2.8, MD 28mm f2.0 &3.5, MD II 35mm 1.8, MD 45mm f2.0, MD 50mm f 1.2 & MD I f1.4, MC PG 58mm 1.2, MD 85mm f2.0, MD R 85mm f2.8 Varisoft, MC 85mm f1.7 MD R 100mm f2.5, MD R 100mm f4.0 macro, MD III 135mm f2.8, MD R 200mm f2.8 & 4.0, RF 250mm f5.6, MD 300mm f4.5, MD APO 400 mm f5.6, RF 500mm f8.0, RF 800mm f8.0 *2 300-s and 300-l
100 mm f4 macro bellows (5/4)
Vivitar 17mm f3.5, Elicar 300mm mirror f5.6, Zhongi turbo ii
Sigma 16mm f 2.8 fish eye
Zooms:24-50 mm f4, 35-70 mm f3.5 macro, 28-85mm f3.5-4.5, 50-135 f 3.5, 70-210 f4 and MD APO 100-500 mm f8 |
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vyky
Joined: 04 Dec 2018
Posts: 7
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| Posted: Wed Dec 05, 2018 6:35 am Post subject: |
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vyky wrote:
Yeah, bizzare. Its the 400g version. |
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Ernst Dinkla
Joined: 30 Nov 2016
Posts: 378
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| Posted: Wed Dec 05, 2018 7:01 am Post subject: |
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Ernst Dinkla wrote:
| vyky wrote: |
| Yeah, bizzare. Its the 400g version. |
Does not show with my MD I 520 grams version on an MC-11 adapter. Mount converted to EF.
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Met vriendelijke groet, Ernst
http://www.pigment-print.com/spectralplots/spectrumviz_1.htm
March 2017 update, 750+ inkjet media white spectral plots |
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D1N0
Joined: 07 Aug 2012
Posts: 2491
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| Posted: Wed Dec 05, 2018 7:47 am Post subject: |
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D1N0 wrote:
Looks like a reflection from the back element on the sensor to me.
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pentaxian |
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tb_a
Joined: 26 Jan 2010
Posts: 3678
Location: Austria
Expire: 2019-08-28
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| Posted: Wed Dec 05, 2018 8:36 am Post subject: |
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tb_a wrote:
Just made a quick and dirty test shot with my Minolta MD 200/4 (same 400 gr. version) on my Sony A7R II in order to look for incompatibilty issues.
Lens was mounted on a cheap MD to Leica-M adapter and a Novoflex Leica-M to Sony NEX one.
Even against the light I wasn't able to reproduce any reflections as you can see yourself.
Fully open at F4:
Either your lens is faulty or there is an adapter issue.
Edit: A second test on a cheap MD to NEX adapter delivered exactly the same result without any reflections whatsoever.
_________________
Thomas Bernardy
Manual focus lenses mainly from Minolta, Pentax, Voigtlaender, Leitz, Topcon and from Russia (too many to be listed here). |
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visualopsins
Joined: 05 Mar 2009
Posts: 10528
Location: California
Expire: 2025-04-11
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| Posted: Wed Dec 05, 2018 9:20 am Post subject: |
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visualopsins wrote:
Reflections appear with lens stopped, however
_________________
☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ 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 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 (51BB), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)
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tb_a
Joined: 26 Jan 2010
Posts: 3678
Location: Austria
Expire: 2019-08-28
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| Posted: Wed Dec 05, 2018 9:48 am Post subject: |
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tb_a wrote:
| visualopsins wrote: |
| Reflections appear with lens stopped, however |
Stopped down to F8 with cheap Chinese MD/NEX adapter:
Doesn't change anything.
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Thomas Bernardy
Manual focus lenses mainly from Minolta, Pentax, Voigtlaender, Leitz, Topcon and from Russia (too many to be listed here). |
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Ernst Dinkla
Joined: 30 Nov 2016
Posts: 378
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| Posted: Wed Dec 05, 2018 9:56 am Post subject: |
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Ernst Dinkla wrote:
| visualopsins wrote: |
| Reflections appear with lens stopped, however |
Then check the aperture blades on deformation or oil that may reflect light from/to the sensor.
The different MD 200mm 4.0 versions are quite close in optical design so I doubt a reflection of a lens element is causing this.
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Met vriendelijke groet, Ernst
http://www.pigment-print.com/spectralplots/spectrumviz_1.htm
March 2017 update, 750+ inkjet media white spectral plots |
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vyky
Joined: 04 Dec 2018
Posts: 7
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| Posted: Wed Dec 05, 2018 11:16 am Post subject: |
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vyky wrote:
This is how the rear element looks like. In comparison with other images os MD 200mm from ebay, there is maybe the black polstering missing? dunno.
Vyky |
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tb_a
Joined: 26 Jan 2010
Posts: 3678
Location: Austria
Expire: 2019-08-28
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| Posted: Wed Dec 05, 2018 11:45 am Post subject: |
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tb_a wrote:
| vyky wrote: |
| This is how the rear element looks like. In comparison with other images os MD 200mm from ebay, there is maybe the black polstering missing? dunno. |
Obviously there is one part missing to prevent reflections.
That's my lens for comparison:
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Thomas Bernardy
Manual focus lenses mainly from Minolta, Pentax, Voigtlaender, Leitz, Topcon and from Russia (too many to be listed here). |
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Ernst Dinkla
Joined: 30 Nov 2016
Posts: 378
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| Posted: Wed Dec 05, 2018 2:03 pm Post subject: |
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Ernst Dinkla wrote:
#1
For comparison MD I version but with EF mount conversion.
However unlikely that the absence of the baffle does create that special reflection, you would expect rings etc.
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Met vriendelijke groet, Ernst
http://www.pigment-print.com/spectralplots/spectrumviz_1.htm
March 2017 update, 750+ inkjet media white spectral plots |
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vyky
Joined: 04 Dec 2018
Posts: 7
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| Posted: Wed Dec 05, 2018 3:09 pm Post subject: |
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vyky wrote:
Thanx anyway guys, obviously faulty lens or faulty combination with the adapter.
Vyky |
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visualopsins
Joined: 05 Mar 2009
Posts: 10528
Location: California
Expire: 2025-04-11
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| Posted: Wed Dec 05, 2018 5:38 pm Post subject: |
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visualopsins wrote:
Obviously, no, sorry, I'm not seeing any difference between the three lenses shown here in regards to the baffling. Although too large an image circle, i.e. unbaffled, does sometimes cause reflections.
The reflections do occur with smaller apertures, when there's more darkness behind the diaphragm, in combination with strong front lighting.
You could try a temporary black cardboard baffle to look for a fix.
_________________
☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ 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 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 (51BB), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)
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tb_a
Joined: 26 Jan 2010
Posts: 3678
Location: Austria
Expire: 2019-08-28
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| Posted: Wed Dec 05, 2018 6:27 pm Post subject: |
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tb_a wrote:
| visualopsins wrote: |
| Obviously, no, sorry, I'm not seeing any difference between the three lenses shown here in regards to the baffling. |
I've checked once again and I think you are right. Just the surface of this part looks a little bit different on the first lens. Maybe somebody polished it?
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Thomas Bernardy
Manual focus lenses mainly from Minolta, Pentax, Voigtlaender, Leitz, Topcon and from Russia (too many to be listed here). |
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stevemark
Joined: 29 Apr 2011
Posts: 3754
Location: Switzerland
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| Posted: Fri Dec 07, 2018 9:22 am Post subject: |
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stevemark wrote:
Some years ago, in the german "Minolta-Forum", similar problems were reported using the Novoflex adapters. Obviously there was light leaking into the adapter. I suspect you may have an adapter of the first generation.
Stephan
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www.artaphot.ch |
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vyky
Joined: 04 Dec 2018
Posts: 7
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| Posted: Mon Dec 10, 2018 6:20 pm Post subject: |
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vyky wrote:
Hey guys, ordered new piece, returned the last.
And guess what: same adapter, but this time the images are flawless.
Niiiice 😀 |
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Sciolist
Joined: 29 Mar 2017
Posts: 1445
Location: Scotland
Expire: 2021-04-16
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| Posted: Mon Dec 10, 2018 10:05 pm Post subject: |
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Sciolist wrote:
| vyky wrote: |
Hey guys, ordered new piece, returned the last.
And guess what: same adapter, but this time the images are flawless.
Niiiice 😀 |
I like a result  . |
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Ernst Dinkla
Joined: 30 Nov 2016
Posts: 378
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| Posted: Tue Dec 11, 2018 8:05 am Post subject: |
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Ernst Dinkla wrote:
| Sciolist wrote: |
| vyky wrote: |
Hey guys, ordered new piece, returned the last.
And guess what: same adapter, but this time the images are flawless.
Niiiice 😀 |
I like a result . |
Well, for the time being one from another source;
https://www.dpreview.com/forums/post/59944050
_________________
Met vriendelijke groet, Ernst
http://www.pigment-print.com/spectralplots/spectrumviz_1.htm
March 2017 update, 750+ inkjet media white spectral plots |
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