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What's the latest lens you added to your collection?
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PostPosted: Fri Jul 31, 2020 2:27 pm    Post subject: Reply with quote

D1N0 wrote:
Big heavy MF Kaleinar 3B 150mm 1:2.8 Pentacon 6 adapter still incoming. ...


It's funny what catches the eye. The infinity symbol look great in that font.


PostPosted: Sat Aug 01, 2020 12:34 pm    Post subject: Reply with quote

Mamyia Sekor C 8/500mm Reflex:



On the Mamiya 645 series, the lens has the field of view comparable to a 300mm full frame lens, thus it's "wider" than most mirror lenses. Using on 24 MP and 43 MP FF, the Mamiya has better detail resolution (especially in the corners) than the Nikkor 8/500mm mirror lens (second computation from about 1984) - the following image is a 100% crop from near the center:



However, as most other 500mm mirror lenses, the Mamiya suffers from a central part in the image which has lesser contrast and a stronger illumination (it looks a bit like vignetting, but it's caused by internal reflection).



The second computation of the Nikkor is better in this respect, since its main mirror has a opening drilled into the main mirror (details see Nikkor tale 13, https://imaging.nikon.com/history/story/0013/index.htm).

The bokeh of the Mamiya is slightly less donut-like since its secondary mirror is relatively small:



On 24 MP and on 43 MP FF there were no visible lateral CAs and only very minor longitudinal CAs; the lens' color correction seems to be excellent (better than the average 8/500mm mirror lens, and way better than the average 400mm / 500mm vintage prime). This is a 100% crop from the corner of a 24 MP FF image:



Certainly a good and interesting mirror lens!

S


PostPosted: Sat Aug 01, 2020 5:33 pm    Post subject: Reply with quote

Tele-Takumar 1:5.6/200 (model: Heymore Mao)

#1


PostPosted: Sat Aug 01, 2020 5:44 pm    Post subject: Reply with quote

visualopsins wrote:
Tele-Takumar 1:5.6/200 (model: Heymore Mao)

#1

Nice! Like 1 small


PostPosted: Sat Aug 01, 2020 6:22 pm    Post subject: A Retinette Angénieux 3,5 / 45 mm (Lens hack) Reply with quote

Lens : Angénieux 3,5/45mm from Retinette Kodak, on helical m42 +rear E mount ultra-thin adapter + M39 / M42 front ring . Lens is screwed on a primers box which is pushed in the M39 ring
Camera in manual mode .






100% crop




Last edited by Helios on Sat Aug 01, 2020 8:19 pm; edited 1 time in total


PostPosted: Sat Aug 01, 2020 8:11 pm    Post subject: Reply with quote

Today on flea market: Canon 70-200 f4 L, Canon 17-40 f4 L and x1,4 Canon converter. All in pristine condition. All for $50.!!!


PostPosted: Sat Aug 01, 2020 8:23 pm    Post subject: Reply with quote

Paulius wrote:
Today on flea market: Canon 70-200 f4 L, Canon 17-40 f4 L and x1,4 Canon converter. All in pristine condition. All for $50.!!!


😳😳😳😱😱😱


PostPosted: Sat Aug 01, 2020 8:26 pm    Post subject: Reply with quote

Congrats

Last edited by uddhava on Sun Aug 02, 2020 12:01 pm; edited 1 time in total


PostPosted: Sat Aug 01, 2020 8:27 pm    Post subject: Reply with quote

Paulius wrote:
Today on flea market: Canon 70-200 f4 L, Canon 17-40 f4 L and x1,4 Canon converter. All in pristine condition. All for $50.!!!

Congrats


PostPosted: Sat Aug 01, 2020 10:35 pm    Post subject: Reply with quote

Thank you! Hurray for flea markets!!!


PostPosted: Sun Aug 02, 2020 12:56 am    Post subject: Reply with quote

Latest is an Olympus Zuiko 32mm f1.7 from Pen EED half frame. It is a standard double gauss that almost covers FF (you lose like 10% of the frame focused at infinity), and is wickedly sharp, with excellent microcontrast and interesting bokeh. Needs to be mounted in a 10mm helicoid in order to achieve infinity focus. I could not rescue the two-bladed aperture but anyway I use it wide open so no real loss for me.

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PostPosted: Sun Aug 02, 2020 6:48 am    Post subject: Reply with quote

These are really quite lovely Kymarto.
Image number 4 is exceptional
T


PostPosted: Sun Aug 02, 2020 8:12 am    Post subject: Reply with quote

Like 1 Like 1 Like 1 excellent find Toby!!


PostPosted: Sun Aug 02, 2020 8:14 am    Post subject: Reply with quote

stevemark wrote:
Mamyia Sekor C 8/500mm Reflex:





Excellent find Stefan!! Congrats


PostPosted: Sun Aug 02, 2020 8:15 am    Post subject: Reply with quote

Got another ZEISS S-Biogon 40mm and a set of quite rare FUJINON-M lenses (25mm, 38mm, 63mm)


PostPosted: Sun Aug 02, 2020 11:00 am    Post subject: Reply with quote

Paulius wrote:
Today on flea market: Canon 70-200 f4 L, Canon 17-40 f4 L and x1,4 Canon converter. All in pristine condition. All for $50.!!!
p
AAARRGGHHHH !!!! :1co)


PostPosted: Mon Aug 03, 2020 2:11 am    Post subject: Reply with quote

Paulius wrote:
Today on flea market: Canon 70-200 f4 L, Canon 17-40 f4 L and x1,4 Canon converter. All in pristine condition. All for $50.!!!


flawless victory


PostPosted: Tue Aug 04, 2020 8:36 am    Post subject: Reply with quote

My first MF zoom ever, and my first zoom ever actually beside kits: a Tamron SP 24-48/3.5-3.8. Woaw, a third ring to deal with Twisted Evil


PostPosted: Tue Aug 04, 2020 10:48 am    Post subject: Reply with quote

[quote="ylyad"]My first MF zoom ever, and my first zoom ever actually beside kits: a Tamron SP 24-48/3.5-3.8. Woaw, a third ring to deal with Twisted Evil[/quote]

Congratulations!
I will be happy to see what results you get and how you like it.


PostPosted: Wed Aug 05, 2020 9:49 am    Post subject: Reply with quote

uddhava wrote:

Congratulations!
I will be happy to see what results you get and how you like it.

Thank you!

Well, I have a bit of a problem. The lens I got was with an Adaptall2 -> Konica adapter. I found an Adaptall2 -> FD adapter (as I have FD to Fuji adapters), but when I mount it on, the aperture doesn't change. The aperture works well with the Konica though.

I believe I mounted the FD adapter properly, incl. aligning the "aperture levers" but nope. Tried 20x, fiddled with it, but no chance. The aperture seems to close a tiny little bit (like from f/3.8 to f/4) but that's about it. Spent quite some time googling the issue, found documentation and videos and I don't get what I'm doing wrong.

The only possible explanation (far from confirmed): on the lens, there is a small ball that needs to be pushed for aperture to vary, and I haven't figured out how exactly this ball gets pushed with the FD adapter. There is a lever on it, I'm not sure it is aligned with the ball but anyway, when the adapter is on, that lever is blocked anyway. And yes, the adapter is an "Adaptall 2" one, so it should work.

I have an Adaptall 2 to Fuji-X and a Konica to Fuji-X adapters on the way, so I am confident I'll be able to use the lens eventually. However, I'd be really happy to understand what I do wrong. Out of sheer curiosity first, but I admit that the current lead times with China shippings due to Covid make the wait horrendous Smile


PostPosted: Wed Aug 05, 2020 10:13 am    Post subject: Reply with quote

Ylyad. Did you make sure the latch / lever on the adaptall ring has clicked in position in the notch on the lens ? Some rings have one, others 2 levers. They have to be in these notches and for some lenses will get there only only by turning the aperture ring until they fall in place.


PostPosted: Wed Aug 05, 2020 11:27 am    Post subject: Reply with quote

If the levers are in place, have you tried with the lens actually mounted on the body ? I believe (I'm not a FD specialist) it can make a difference.


PostPosted: Wed Aug 05, 2020 11:40 am    Post subject: Reply with quote

Phalbert wrote:
Ylyad. Did you make sure the latch / lever on the adaptall ring has clicked in position in the notch on the lens ? Some rings have one, others 2 levers. They have to be in these notches and for some lenses will get there only only by turning the aperture ring until they fall in place.

Well, I tried another time. I have no idea what i did differently - I have the feeling I did the same as all the times before - but this time it worked.

Thanks!


PostPosted: Wed Aug 05, 2020 3:41 pm    Post subject: Reply with quote

:1l)
Grüezi !


PostPosted: Wed Aug 05, 2020 5:06 pm    Post subject: Reply with quote

kymarto wrote:
Latest is an Olympus Zuiko 32mm f1.7 from Pen EED half frame. It is a standard double gauss that almost covers FF (you lose like 10% of the frame focused at infinity), and is wickedly sharp, with excellent microcontrast and interesting bokeh. Needs to be mounted in a 10mm helicoid in order to achieve infinity focus. I could not rescue the two-bladed aperture but anyway I use it wide open so no real loss for me.



Nice and unique images. I recently briefly tried my Mamiya Sekor 58mm f/1.7 and it displays this kind of bokeh occasionally.