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pentaxpete
Joined: 02 Dec 2011
Posts: 651
Location: BRENTWOOD England
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 Posted: Mon Jan 08, 2018 11:12 am Post subject: My M42 to 4/3rds adapter |
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pentaxpete wrote:
i treated myself to a M42 screw to 4/3rds Digital adapter for my Olympus E-500 from SRB Photographic (UK)
It was just over £20 with postage and tax on TOP of the Postage !
I have tried it with a couple of lenses at the moment -- my 50mm f1.4 SMC Takumar and my £1 Camera Club Auction Bargain lens the Russian Jupiter 85mm f2 which becomes a 170mm f2 !
When I have got some more interesting results i can show you some.
Here it is with the Russian Jupiter 85mm f2
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DConvert
Joined: 12 Jun 2010
Posts: 921
Location: Essex UK
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| Posted: Mon Jan 08, 2018 1:23 pm Post subject: |
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DConvert wrote:
I'm surprised you didn't go for a PK adapter, (such as http://www.ebay.co.uk/itm/PENTAX-K-PK-LENS-TO-OLYMPUS-4-3-FOUR-THIRDS-ADAPTER-PANASONIC-DMC-L10-LEICA-3/262008592519?hash=item3d00edd887:g:Fo8AAOxywOtSXfHf)
Then you'd have been able to use your collection of K mount lenses as well as the M42 ones.
My 4/3 adapters are all MICRO four thirds ones which leaves room for some extra toys (helicoid/tilt etc)  |
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Sciolist
Joined: 29 Mar 2017
Posts: 1445
Location: Scotland
Expire: 2021-04-16
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| Posted: Mon Jan 08, 2018 2:40 pm Post subject: Re: My M42 to 4/3rds adapter |
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Sciolist wrote:
| pentaxpete wrote: |
Auction Bargain lens the Russian Jupiter 85mm f2 which becomes a 170mm f2 !
When I have got some more interesting results i can show you some.
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Just in case you notice something odd Pete, I'm not sure you're getting a 170mm f2. From what I remember, you still have an 85mm f2, but it is projecting on to a cropped sensor which leaves you a field of view equivalent to a 170mm. There's no 2x magnification as such, so you'll notice the perspective stays at 85mm.
Someone correct me if I'm wrong and I'll delete this. |
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DConvert
Joined: 12 Jun 2010
Posts: 921
Location: Essex UK
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| Posted: Mon Jan 08, 2018 3:24 pm Post subject: Re: My M42 to 4/3rds adapter |
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DConvert wrote:
| Sciolist wrote: |
| pentaxpete wrote: |
Auction Bargain lens the Russian Jupiter 85mm f2 which becomes a 170mm f2 !
When I have got some more interesting results i can show you some.
|
Just in case you notice something odd Pete, I'm not sure you're getting a 170mm f2. From what I remember, you still have an 85mm f2, but it is projecting on to a cropped sensor which leaves you a field of view equivalent to a 170mm. There's no 2x magnification as such, so you'll notice the perspective stays at 85mm.
Someone correct me if I'm wrong and I'll delete this. |
You're not wrong in that it's still an 85mm but it's cropped to give the same FOV as a 170mm.
Perspective is actually a feature of subject distance not focal length. The narrower FOV from the cropped image will encourage a position similar to that chosen with a 170 so the perspective will reflect that. |
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pentaxpete
Joined: 02 Dec 2011
Posts: 651
Location: BRENTWOOD England
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| Posted: Mon Jan 08, 2018 4:25 pm Post subject: |
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pentaxpete wrote:
I screwed the Jupiter onto my Asahi Pentax S3 and had a look at my boy's Tropical Fish Tank here indoors -- how large it was in viewfinder , THEN screwed it into E-500 and looked and fish tank looked the SAME SIZE but less area around it -- so I understand now, the circle of lens coverage for 4/3rds digital is smaller than the 'Full Frame FILM camera lens' BUT the sizes are the same of objects.
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Sciolist
Joined: 29 Mar 2017
Posts: 1445
Location: Scotland
Expire: 2021-04-16
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| Posted: Mon Jan 08, 2018 6:40 pm Post subject: Re: My M42 to 4/3rds adapter |
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Sciolist wrote:
| DConvert wrote: |
| Sciolist wrote: |
| pentaxpete wrote: |
Auction Bargain lens the Russian Jupiter 85mm f2 which becomes a 170mm f2 !
When I have got some more interesting results i can show you some.
|
Just in case you notice something odd Pete, I'm not sure you're getting a 170mm f2. From what I remember, you still have an 85mm f2, but it is projecting on to a cropped sensor which leaves you a field of view equivalent to a 170mm. There's no 2x magnification as such, so you'll notice the perspective stays at 85mm.
Someone correct me if I'm wrong and I'll delete this. |
You're not wrong in that it's still an 85mm but it's cropped to give the same FOV as a 170mm.
Perspective is actually a feature of subject distance not focal length. The narrower FOV from the cropped image will encourage a position similar to that chosen with a 170 so the perspective will reflect that. |
Do you mean the photographer will stand further from the object? If so, I get you. Thanks. |
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DConvert
Joined: 12 Jun 2010
Posts: 921
Location: Essex UK
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| Posted: Tue Jan 09, 2018 9:13 am Post subject: Re: My M42 to 4/3rds adapter |
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DConvert wrote:
| Sciolist wrote: |
| DConvert wrote: |
You're not wrong in that it's still an 85mm but it's cropped to give the same FOV as a 170mm.
Perspective is actually a feature of subject distance not focal length. The narrower FOV from the cropped image will encourage a position similar to that chosen with a 170 so the perspective will reflect that. |
Do you mean the photographer will stand further from the object? If so, I get you. Thanks. |
That's right. FOV often determines where the photographer stands giving rise to the misconception that focal length itself affects perspective. |
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uddhava
Joined: 22 Aug 2012
Posts: 3074
Location: Hungary
Expire: 2021-06-21
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| Posted: Tue Jan 09, 2018 10:56 am Post subject: |
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uddhava wrote:
Will be interested to see some results. Hope it goes good. |
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Sciolist
Joined: 29 Mar 2017
Posts: 1445
Location: Scotland
Expire: 2021-04-16
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| Posted: Tue Jan 09, 2018 12:03 pm Post subject: Re: My M42 to 4/3rds adapter |
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Sciolist wrote:
| DConvert wrote: |
| Sciolist wrote: |
| DConvert wrote: |
You're not wrong in that it's still an 85mm but it's cropped to give the same FOV as a 170mm.
Perspective is actually a feature of subject distance not focal length. The narrower FOV from the cropped image will encourage a position similar to that chosen with a 170 so the perspective will reflect that. |
Do you mean the photographer will stand further from the object? If so, I get you. Thanks. |
That's right. FOV often determines where the photographer stands giving rise to the misconception that focal length itself affects perspective. |
Cheers  . |
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visualopsins
Joined: 05 Mar 2009
Posts: 11069
Location: California
Expire: 2025-04-11
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| Posted: Tue Jan 09, 2018 2:00 pm Post subject: Re: My M42 to 4/3rds adapter |
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visualopsins wrote:
| Sciolist wrote: |
| pentaxpete wrote: |
Auction Bargain lens the Russian Jupiter 85mm f2 which becomes a 170mm f2 !
When I have got some more interesting results i can show you some.
|
Just in case you notice something odd Pete, I'm not sure you're getting a 170mm f2. From what I remember, you still have an 85mm f2, but it is projecting on to a cropped sensor which leaves you a field of view equivalent to a 170mm. There's no 2x magnification as such, so you'll notice the perspective stays at 85mm.
Someone correct me if I'm wrong and I'll delete this. |
Absolutely correct imho.
Any 170mm lens on FF will give the same field of view and framing as any 85mm lens gives on 4/3. Of course, lenses from smaller format may vignette on larger format camera.
_________________
☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ 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)
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pentaxpete
Joined: 02 Dec 2011
Posts: 651
Location: BRENTWOOD England
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| Posted: Tue Jan 09, 2018 3:49 pm Post subject: |
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pentaxpete wrote:
I will put some Test Results in a picture area of the Forum -- maybe photos should NOT be added HERE ?
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visualopsins
Joined: 05 Mar 2009
Posts: 11069
Location: California
Expire: 2025-04-11
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| Posted: Tue Jan 09, 2018 5:02 pm Post subject: |
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visualopsins wrote:
Your choice I think.
I think they could go here for reasons the topic fits, and, the photos take the same disk space no matter where posted, and, there's no need for a pointer from this thread to a new one.
_________________
☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ 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)
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visualopsins
Joined: 05 Mar 2009
Posts: 11069
Location: California
Expire: 2025-04-11
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| Posted: Tue Jan 09, 2018 5:11 pm Post subject: |
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visualopsins wrote:
http://forum.mflenses.com/tests-m42-lenses-on-olympus-4-3rds-with-adapter-t78575.html
_________________
☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ 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)
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pentaxpete
Joined: 02 Dec 2011
Posts: 651
Location: BRENTWOOD England
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| Posted: Sun Jan 21, 2018 3:59 pm Post subject: |
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pentaxpete wrote:
well -- I did a Video on all my 'Adapters' and showed M42 Screw lenses on various Camera Bodies -- you can see it here :
https://www.youtube.com/watch?v=kAkStTNqh84&lc=z232v50z2ou4zfitjacdp43ainvwxytlvqkg20n05d5w03c010c&feature=em-comments
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Long Live REAL PHOTOGRAPHY ! |
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visualopsins
Joined: 05 Mar 2009
Posts: 11069
Location: California
Expire: 2025-04-11
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| Posted: Sun Jan 21, 2018 5:51 pm Post subject: |
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visualopsins wrote:
Thanks Pete!
I think you could get a Nikon to Tamron adapter to compare with the adapter combination with the added element.
_________________
☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ 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)
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