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kathala
Joined: 13 May 2022
Posts: 128
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 Posted: Sun Jan 22, 2023 11:06 am Post subject: |
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kathala wrote:
By chance, I found two raw images in my archive.
The seascape is the 85/1.2 nFD on LT2
The landscape is the 35/1.4 Sigma Art on Metabones. In this case, although the MB covers slightly more, it's the lens that vignettes - which is to be expected with wide angles. Nonetheless, it gives a 28/1, which is quite nice. (Both lenses wide open, without hood etc. of course, and soft vignette removed in post)
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Pancolart, quite a few of these old russians were either made for MF initially, or cover more territory than they should (must be a russian thing...)
In the case of the Jupiter-8, I actually confirmed the data several times since I found it hard to believe as well. But though 62 mm image diameter is larger than FF, it will not cover MF - even 645 is 7o mm in diameter, 6x6 is 8o.[/img]
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Pancolart
Joined: 04 Feb 2008
Posts: 3693
Location: Slovenia, EU
Expire: 2013-11-18
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| Posted: Mon Jan 23, 2023 6:51 pm Post subject: |
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Pancolart wrote:
| kathala wrote: |
Pancolart, quite a few of these old russians were either made for MF initially, or cover more territory than they should (must be a russian thing...)
In the case of the Jupiter-8, I actually confirmed the data several times since I found it hard to believe as well. But though 62 mm image diameter is larger than FF, it will not cover MF - even 645 is 7o mm in diameter, 6x6 is 8o. |
Thank you for clarification. 127 film camera would be perfect for Jupiter but film is too hard to obtain. Still 6x4.5 is tempting to try.
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alex ph
Joined: 16 Mar 2013
Posts: 1571
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| Posted: Sat Feb 18, 2023 8:57 am Post subject: |
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alex ph wrote:
I also tried a 135mm MF lens with Lens Turbo II on Sony FF. Hm, there is a clear limitation coming from the lens booster which has a square back lens shape. The older version with round and larger shape or some other makers may give much better results, as kathala shows.
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kathala
Joined: 13 May 2022
Posts: 128
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| Posted: Sat Feb 18, 2023 11:11 am Post subject: |
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kathala wrote:
| alex ph wrote: |
I also tried a 135mm MF lens with Lens Turbo II on Sony FF. Hm, there is a clear limitation coming from the lens booster which has a square back lens shape. The older version with round and larger shape or some other makers may give much better results, as kathala shows.
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ah, true, I had seen something like that documented once. I may have been mistaken and actually own version 1 (?).
Then again, at ~1o € a piece, one might just buy another one, or try and remove that rear baffle
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Photography Reference Tables:
drive.google.com/drive/folders/1aJ5F8XM6t5AK4bydthcDoiwhsh5CUx3N
My Art and Books: ChristianSchnalzger.de
My Exploration of Panoramic Photographic Storytelling:
flickr.com/photos/hach_und_ueberhaupt/
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eggplant
Joined: 27 May 2020
Posts: 516
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| Posted: Sat Feb 18, 2023 4:55 pm Post subject: |
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eggplant wrote:
10 euros a piece for a speedbooster? I'll buy...
Well - I thought the Lens Turbo II had a rectangular rear element- no, it really is a baffle:
https://4.img-dpreview.com/files/p/E~forums/56587016/0f3b091769204dd398531144be9f080a
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caspert79
Joined: 31 Oct 2010
Posts: 2921
Location: The Netherlands
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| Posted: Sat Feb 18, 2023 9:04 pm Post subject: |
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caspert79 wrote:
| alex ph wrote: |
I also tried a 135mm MF lens with Lens Turbo II on Sony FF. Hm, there is a clear limitation coming from the lens booster which has a square back lens shape. The older version with round and larger shape or some other makers may give much better results, as kathala shows.
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That’s pretty awful. |
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kathala
Joined: 13 May 2022
Posts: 128
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| Posted: Sun Feb 19, 2023 8:09 am Post subject: |
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kathala wrote:
I paid 7 € for my LT (which, as it turns out, is Mk 1; FD-FE) in ~2o2o
I've never seen rectangular rear elements except in the Zeiss R-Biotars, and certainly not in any cheap piece of gear. Sadly, one does not need a rectangular rear element for mechanical vignetting to occur.
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Photography Reference Tables:
drive.google.com/drive/folders/1aJ5F8XM6t5AK4bydthcDoiwhsh5CUx3N
My Art and Books: ChristianSchnalzger.de
My Exploration of Panoramic Photographic Storytelling:
flickr.com/photos/hach_und_ueberhaupt/
The better you look, the more you see (B. E. Ellis) |
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