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LittleAlex
Joined: 27 Nov 2008
Posts: 1748
Location: L'vov (Western Ukraine)
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 Posted: Fri Sep 13, 2024 9:14 pm Post subject: Mamiya Sekor 645 C 35mm f3.5 |
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LittleAlex wrote:
I own first sample that lens quite long. But was unsatisfied with it. There is the story:
https://forum.mflenses.com/mamiya-sekor-645-c-35mm-f3-5-haze-inside-the-lens-t84981.html
The new sample Mamiya Sekor 645 C N 35mm f3.5, which I obtained recently looks some better. However, also only quite bearable, and at the closed diaphragms.
There is photo at 11.0:
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Last edited by LittleAlex on Wed Sep 25, 2024 6:12 pm; edited 1 time in total |
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stevemark
Joined: 29 Apr 2011
Posts: 4086
Location: Switzerland
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| Posted: Fri Sep 13, 2024 10:42 pm Post subject: Re: Mamiya Sekor 645 C 35mm f3.5 |
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stevemark wrote:
| LittleAlex wrote: |
I own first sample that lens quite long. But was unsatisfied with it. There is the story:
The new sample Mamiya Sekor 645 C N 35mm f3.5, which I obtained recently looks some better. However, also only quite bearable, and at the closed diaphragms.
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That's why Mamiya did release the Sekor D AF 4.5/28 mm ... The old computation was good enough for film, but not for high-res meduim format sensors. I've been testing the Sekor C 3.5/35mm using the Zörk Shift adapter and my A900 / A7RII cameras (resulting in 54 MP and 95 MP images, and a stitched Sensor size of 54 x 36mm respectively). The results weren't impressive; an A7RII plus Zeiss Loxia 2.8/21mm is much better.
S
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LittleAlex
Joined: 27 Nov 2008
Posts: 1748
Location: L'vov (Western Ukraine)
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| Posted: Sat Sep 14, 2024 1:53 am Post subject: Re: Mamiya Sekor 645 C 35mm f3.5 |
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LittleAlex wrote:
| stevemark wrote: |
That's why Mamiya did release the Sekor D AF 4.5/28 mm ...
S |
Well:
If you're using the XF or DF+ with a FF back, and IQ in the corners is important, the 35LS is a great piece of glass. On a 1.3X back, I think you could get away with one of the 28's.
https://www.getdpi.com/forum/index.php?threads/mamiya-28mm-f-4-5-d-vs-mamiya-schneider-28mm-ls-f-4-5.57718/
Well, my P25 back has the 1.1X factor
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stevemark
Joined: 29 Apr 2011
Posts: 4086
Location: Switzerland
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| Posted: Sat Sep 14, 2024 11:36 am Post subject: Re: Mamiya Sekor 645 C 35mm f3.5 |
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stevemark wrote:
That's marketing gibberish. The person writing the above was/is running the Phase One show room for Los Angeles. He certainly prefers to sell a 35LS since the Mamiya 4.5/28mm is discontinued.
The Mamiya 4.5/28mm was designed not only for 1.3x and 1.1x backs, but for film (1.0x) as well:
https://lens-db.com/mamiya-sekor-d-af-28mm-f45-aspherical-2007/
S
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LittleAlex
Joined: 27 Nov 2008
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Location: L'vov (Western Ukraine)
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| Posted: Wed Sep 18, 2024 7:20 pm Post subject: |
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LittleAlex wrote:
Phase One 645 DF+ P25 back
f/11.0 15,0 s; ISO 400
Tripod
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LittleAlex
Joined: 27 Nov 2008
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Location: L'vov (Western Ukraine)
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| Posted: Fri Sep 20, 2024 9:06 pm Post subject: |
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LittleAlex wrote:
Phase One 645 DF+ P25 back
F/5.6 1/30 с; ISO 200
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LittleAlex
Joined: 27 Nov 2008
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| Posted: Fri Sep 20, 2024 9:23 pm Post subject: |
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LittleAlex wrote:
Phase One 645 DF+ P25 back
f/8.0 1/125 с; ISO 200
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LittleAlex
Joined: 27 Nov 2008
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Location: L'vov (Western Ukraine)
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| Posted: Tue Sep 24, 2024 7:35 pm Post subject: |
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LittleAlex wrote:
Phase One 645 DF+ P25 back
f/3.4 1/125 с; ISO 200
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LittleAlex
Joined: 27 Nov 2008
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Location: L'vov (Western Ukraine)
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| Posted: Tue Sep 24, 2024 7:40 pm Post subject: |
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LittleAlex wrote:
Phase One 645 DF+ P25 back
f/11.0 1/125 с; ISO 200
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LittleAlex
Joined: 27 Nov 2008
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Location: L'vov (Western Ukraine)
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| Posted: Tue Sep 24, 2024 7:54 pm Post subject: |
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LittleAlex wrote:
Phase One 645 DF+ P25 back
f/8.0 1/45 s; ISO 200
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stevemark
Joined: 29 Apr 2011
Posts: 4086
Location: Switzerland
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| Posted: Tue Sep 24, 2024 10:16 pm Post subject: |
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stevemark wrote:
| LittleAlex wrote: |
Phase One 645 DF+ P25 back
f/3.4 1/125 с; ISO 200
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That's a really good image - well composed, and ... black and white!!
S
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Noritar
Joined: 25 Jul 2024
Posts: 41
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| Posted: Thu Sep 26, 2024 2:53 pm Post subject: |
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Noritar wrote:
I've been putting together a Mamiya 645 lens set and I have been slow to buy the 35/3.5 due to its lackluster reputation. These images look good and have convinved me to get one. I don't know why they sell for more than the Pentax 645 35/3.5 when everyone says the Pentax version is better, but that's the way it is. |
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LittleAlex
Joined: 27 Nov 2008
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Location: L'vov (Western Ukraine)
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| Posted: Thu Sep 26, 2024 5:59 pm Post subject: |
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LittleAlex wrote:
| Noritar wrote: |
| convinved me to get one. . |
But be very careful with the back optical element. There is the story again:
https://forum.mflenses.com/mamiya-sekor-645-c-35mm-f3-5-haze-inside-the-lens-t84981.html
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LittleAlex
Joined: 27 Nov 2008
Posts: 1748
Location: L'vov (Western Ukraine)
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| Posted: Thu Sep 26, 2024 6:05 pm Post subject: |
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LittleAlex wrote:
| Noritar wrote: |
| its lackluster reputation. . |
Well, lens is so-so, and quite useful. Especially at 8-11 diaphragm.
Of course there are alternatives, like Mamiya Sekor AF 28mm f/4.5 D ASPH, or even Phase One 35mm f3.5 LS Blue Ring, but prices are really raving, and I am not completely certain that differences in quality would justify the difference in price. Especially with the P25 back, which I use.
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Noritar
Joined: 25 Jul 2024
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| Posted: Fri Sep 27, 2024 1:39 am Post subject: |
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Noritar wrote:
That is good to know. Thanks for that info! |
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Noritar
Joined: 25 Jul 2024
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| Posted: Fri Sep 27, 2024 1:41 am Post subject: |
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Noritar wrote:
| LittleAlex wrote: |
| Noritar wrote: |
| its lackluster reputation. . |
Well, lens is so-so, and quite useful. Especially at 8-11 diaphragm.
Of course there are alternatives, like Mamiya Sekor AF 28mm f/4.5 D ASPH, or even Phase One 35mm f3.5 LS Blue Ring, but prices are really raving, and I am not completely certain that differences in quality would justify the difference in price. Especially with the P25 back, which I use. |
I want it primarily for video. I believe it will be good for that purpose even if it's not the sharpest option. |
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LittleAlex
Joined: 27 Nov 2008
Posts: 1748
Location: L'vov (Western Ukraine)
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| Posted: Sat Sep 28, 2024 10:20 pm Post subject: |
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LittleAlex wrote:
| stevemark wrote: |
well composed, and ... black and white!!
S |
f/11.0 1/45 s; ISO 200
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