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Antoine
Joined: 08 Jan 2016
Posts: 298
Location: London
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 Posted: Thu Sep 13, 2018 7:44 pm Post subject: |
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Antoine wrote:
Superb photos. Thanks 
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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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Slalom
Joined: 10 Dec 2017
Posts: 158
Location: Stourbridge
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| Posted: Thu Sep 13, 2018 10:30 pm Post subject: minimum focal distance |
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Slalom wrote:
I think the old zooms had a minimum focus distance if they spread across two of wide normal and telephoto ranges. For instance some of the Olympus wides had close focusing groups.
Imagine trying to get that across another range and the complexity involved. I think we have to accept the compromise to give good images for all adjustments.
We accept primes may be created for Bokey or other qualities, so zooms are an extra requirement and compromises increase. |
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Altslash
Joined: 17 May 2021
Posts: 1
Location: London, UK
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| Posted: Mon May 17, 2021 7:48 pm Post subject: |
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Altslash wrote:
Hi, I'm a noob here and this is my first post on the forum.
Today, I got my MD 35-135 which is in excellent condition and it looks brand new but there seems to be an issue as I'm not able to focus at 35mm for some reason and I'm not sure why from 50mm to 135mm it works really well, does anyone know what the issue can be? |
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hasenbein
Joined: 15 May 2020
Posts: 93
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| Posted: Thu May 20, 2021 7:56 pm Post subject: |
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hasenbein wrote:
The issue is that you got ripped off by the seller.
Now you have the usual two choices: Keep it and write the money off - or rip off another dude by selling it again. |
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lumens pixel
Joined: 27 Feb 2019
Posts: 883
Expire: 2021-06-25
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| Posted: Fri May 21, 2021 5:09 pm Post subject: |
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lumens pixel wrote:
| Altslash wrote: |
Hi, I'm a noob here and this is my first post on the forum.
Today, I got my MD 35-135 which is in excellent condition and it looks brand new but there seems to be an issue as I'm not able to focus at 35mm for some reason and I'm not sure why from 50mm to 135mm it works really well, does anyone know what the issue can be? |
Asking a silly question here: Are you sure you do not focus at 35? These wide range zooms have a touchy focus at the long end but it is pretty vague at the wide end. This is because the focusing action should be correlated to the focal length which is obviously not possible on a mechanical zoom. So you might have the impression of rotating the focus ring with little effect at 35. There might well be an action but much less abrupt than the one observed at 135.
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Lumens Pixel
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Minolta SR mount: 16 2,8; Sigma SuperWide 24 2,8; 28 2,5; 28 2,8; 28 3,5; 35 2,8; 45 2,0; 50 1,4; 50 1,7; 50 2,0; 58 1,4; 85 2,0; 100 2,5; 100 4 Macro; 135 3,5; 135 2,8; 200 4; RF 250 5,6; 24-35 3,5; 35-70 3,5; 75-150 4; 70-210 4
Canon FD mount: Tokina RMC 17 3,5; 28 2,8; 35 2,8; 50 1,8; 50 3,5 Macro; 55 1,2; 135 3,5; 135 2,5; 200 4,0; 300 5,6; 28-55 3,5 4,5; Tokina SZ-X SD 270; 70-150 4,5; 70-210 f4; 80-200 4L; Tokina SZ-X 845
Tamron Adaptall: 28-80 3,5-4,2 (27A); 70-210 3,8-4 (46A); 60-300 (23A); 90 2,5 (52B); 35-135 3,5-4,5 (40A)
Tamron SP: 20-40 2,7-3,5 (266D) |
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stevemark
Joined: 29 Apr 2011
Posts: 4042
Location: Switzerland
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| Posted: Fri May 21, 2021 5:42 pm Post subject: |
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stevemark wrote:
| lumens pixel wrote: |
Asking a silly question here: ... |
Interesting remark.
To clarify the issue:
1) are you able to rotate the focusing ring at f=35mm or ...
2) ... is the focusing roing blocked at f=35mm?
S
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www.artaphot.ch |
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visualopsins
Joined: 05 Mar 2009
Posts: 11028
Location: California
Expire: 2025-04-11
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| Posted: Fri May 21, 2021 6:13 pm Post subject: |
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visualopsins wrote:
Welcome Altslash
I.e. at 35mm can lens focus at close distances than infinity, or, not at any distance?
Also, at 35mm adapter thickness is more critical that at longer focal length -- an adapter slightly too thick can defeat ability to focus at 35mm but is not a problem with longer focal lengths. Does adapter allow infinity focus with 35mm or wider prime lens, for example?
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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)
Last edited by visualopsins on Fri May 21, 2021 6:42 pm; edited 1 time in total |
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lumens pixel
Joined: 27 Feb 2019
Posts: 883
Expire: 2021-06-25
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| Posted: Fri May 21, 2021 6:39 pm Post subject: |
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lumens pixel wrote:
Even simpler, is the lens engaged in macro mode?
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Lumens Pixel
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Minolta SR mount: 16 2,8; Sigma SuperWide 24 2,8; 28 2,5; 28 2,8; 28 3,5; 35 2,8; 45 2,0; 50 1,4; 50 1,7; 50 2,0; 58 1,4; 85 2,0; 100 2,5; 100 4 Macro; 135 3,5; 135 2,8; 200 4; RF 250 5,6; 24-35 3,5; 35-70 3,5; 75-150 4; 70-210 4
Canon FD mount: Tokina RMC 17 3,5; 28 2,8; 35 2,8; 50 1,8; 50 3,5 Macro; 55 1,2; 135 3,5; 135 2,5; 200 4,0; 300 5,6; 28-55 3,5 4,5; Tokina SZ-X SD 270; 70-150 4,5; 70-210 f4; 80-200 4L; Tokina SZ-X 845
Tamron Adaptall: 28-80 3,5-4,2 (27A); 70-210 3,8-4 (46A); 60-300 (23A); 90 2,5 (52B); 35-135 3,5-4,5 (40A)
Tamron SP: 20-40 2,7-3,5 (266D) |
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stevemark
Joined: 29 Apr 2011
Posts: 4042
Location: Switzerland
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| Posted: Fri May 21, 2021 7:03 pm Post subject: |
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stevemark wrote:
| lumens pixel wrote: |
| Even simpler, is the lens engaged in macro mode? |
The macro mode of the Minolta MD 3.5-4.5/35-105mm can be set only at f=135mm.
It certainly isn't the problem described in the original posting!
S
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