According provided by lens SMC PENTAX-M 1:1.4 50mm Asahi OPT. CO., Japan many thanks to the store FOCUSFILM (subscribe to INSTAGRAM, check out olx). There you can find many interesting film cameras and manual lenses.

SMC PENTAX-M 1:1.4 50mm Asahi OPT. CO., Japan. increase.
In short
SMC PENTAX-M 1:1.4 50mm Asahi OPT. CO., Japan - a good classic manual high-aperture fifty kopeck piece from a bygone era. There is a whole family of such lenses, in which there are approximately 8-9 main models.
Nowadays SMC PENTAX-M 1:1.4 50mm Asahi OPT. CO., Japan is interesting for the 'legendary pattern' common to all similar Takumar/Pentax 50/1.4 lenses, compact size and high aperture.
All lenses of this family (except for the first and the last) use the same optical scheme of 7 elements in 6 groups (classic planar scheme [Planar]). The first was'Planar killer'and used an advanced scheme for those times 8/6 (difference between 7/6 and 8/6), and last - super-modern circuit 15/9!.
This SMC PENTAX-M 1:1.4 50mm Asahi OPT. CO., Japan refers to the 'PENTAX-M' with Pentax K mount.
In parallel with the '50 / 1.4' line, the Pentax / Takumar lens lines of the 50 / 1.7, 50 / 1.8, 50 / 2, 55 / 1.8, 55 / 1.9, 55 / 2, 55 / 2.2, 58 / 2, 58 / 2.4 classes developed and 50/1.2.
It's important: This lens does not suffer from lens coating degradation. For example older versions like Super-Multi-Coated TAKUMAR 1: 1.4 / 50 ASAHI OPT. CO., JAPANsuffered from severe degradation of enlightenment.
All major versions of similar lenses Asahi Opt. Co., Takumar / Pentax:
1.2/50
- SMC PENTAX 1: 1.2 / 50 ASAHI OPT. CO., JAPAN (7/6, 20947, 1975-1984)
- SMC PENTAX 1:1.2/50 ASAHI OPT. CO.,JAPAN'GOLD' (7/6, 1981)
- SMC PENTAX-A 1: 1.2 50mm (7/6, 20987, 1984-2004)
- SMC PENTAX-A 1: 1.2 50mm Special (7/6, 2000)
1.4 / 50 (video)
- Super takumar 1: 1.4 / 50 Asahi Opt. Co., Lens made in Japan (8/6, 358, 1964-1966)
- Super takumar 1: 1.4 / 50 Asahi Opt. Co. Lens made in japan (7/6, 37800, 1965-1971, F/2 in number)
- Super takumar 1: 1.4 / 50 Asahi Opt. Co. Lens made in japan (7/6, 37801, 1965-1971, F/2 dot)
- Super takumar 1: 1.4 / 50 Asahi Opt. Co., Lens made in Japan (7/6, 37802, 1965-1971, comma after 'CO.')
- Super-Multi Coated TAKUMAR 1: 1.4 / 50 ASAHI OPT. CO., JAPAN (7/6, 37902, 1971-1972)
- SMC TAKUMAR 1: 1.4 / 50 ASAHI OPT. CO., JAPAN (7/6, 37908, 1972-1975)
- SMC PENTAX 1: 1.4 / 50 ASAHI OPT. CO., JAPAN (7/6, 20847, 1975-1977)
- SMC PENTAX-M 1: 1.4 50mm ASAHI OPT. CO., JAPAN (7/6, 20867, 1977-1984)
- SMC PENTAX-A 1: 1.4 50mm (7/6, 20887, 1984-1989)
- SMC PENTAX-F 1: 1.4 50mm (7/6, 20827, 1987-1991)
- SMC PENTAX-FA 1: 1.4 50mm (7/6, 20817, 1991-2023)
- HD PENTAX-D FA * 1: 1.4 50mm SDMAW (15/9, 21260, 2018->)
- SMC PENTAX-FA 1: 1.4 50mm Classic (7/6, 2023->)
- HD PENTAX-FA 1: 1.4 50mm (7/6, 2023->)
1.8 / 55 (video)
- takumar 1:1.8 f=55mm Asahi OPT. CO., Japan (6/5, 1958, zebra)
- Auto-takumar 1:1.8 f=55mm Asahi OPT. CO., Japan (6/5, 1958-1960, zebra)
- Auto-takumar 1:1.8/55 ASAHI OPT. CO., Lens made in Japan (6/5, 1960, with 'R')
- Auto-takumar 1:1.8/55 ASAHI OPT. CO., Lens made in Japan (6/5, 1960-1962, no 'R', oblique lines of the depth of field)
- Auto-takumar 1:1.8/55 ASAHI OPT. CO., Lens made in Japan (6/5, 1962, no 'R', straight lines of depth of field)
- Super takumar 1: 1.8 / 55 Asahi Opt. Co., Lens made in Japan (6/5, 1962, fine ribs, f/1.8 left)
- Super takumar 1: 1.8 / 55 Asahi Opt. Co., Lens made in Japan (6/5, before 1965, fine ribs, f/1.8 right)
- Super takumar 1: 1.8 / 55 Asahi Opt. Co. Lens made in japan (6/5, 37106, before 1971, large ribs)
- Super-Multi Coated TAKUMAR 1: 1.8 / 55 ASAHI OPT. CO., JAPAN (6/5, 37104, 1971-1972)
- SMC TAKUMAR 1: 1.8 / 55 ASAHI OPT. CO., JAPAN (6/5, 37108, 1972-1975)
- SMC PENTAX 1: 1.8 / 55 ASAHI OPT. CO., JAPAN (6/5, 20747, 1975-1977)
2 / 55 (1.9 / 55)
- Auto-takumar 1:1.9 f=55mm Asahi Opt. Co.,Japan (6/5, 1958-1959)
- Auto-takumar 1: 2 f = 55mm Asahi Opt. Co., Japan (6/5, 1958-1959, zebra)
- Auto-takumar 1: 2 f = 55mm Asahi Opt. Co., Japan (6/5, 34100, 1958-1959)
- Super takumar 1: 2 / 55 Asahi Opt. Co., Lens made in Japan (6/5, small fins, F/2 left)
- Super takumar 1: 2 / 55 Asahi Opt. Co., Lens made in Japan (6/5, small ribs, F/2 on the right)
- Super takumar 1: 2 / 55 Asahi Opt. Co. Lens made in japan (6/5, 37103, 1962-1973, large ribs)
- Super takumar 1: 2 / 55 Asahi Opt. Co. Lens made in japan (6/5, 37107, additional aperture pins)
- SMC TAKUMAR 1: 2 / 55 ASAHI OPT. CO., JAPAN (6/5, 37109, 1973-1975)
- SMC PENTAX 1: 2 55mm ASAHI OPT. CO., JAPAN (6/5, 1976-1977)
1.7/50
- SMC PENTAX-M 1: 1.7 50mm ASAHI OPT. CO., JAPAN (6/5, 20877, 1977-1984)
- SMC PENTAX-A 1: 1.7 50mm (6/5, 20897, 1984-1989)
- SMC PENTAX-F 1: 1.7 50mm (6/5, 20837, 1987-1991)
- SMC PENTAX-FA 1: 1.7 50mm (6/5, 20907, 1991-2004)
2/50
- SMC PENTAX-M 1:2 50mm ASAHI OPTICAL CO. (5/5, 20677, 1979-1985)
- SMC PENTAX-A 1: 2 50mm (5/5, 20697, 1985-1998)
2.2/55
- takumar 1:2.2/55 Asahi Opt. CO., Japan (6/5, 1961-1963)
- Auto-takumar 1:2.2/55 ASAHI OPT. CO., Lens made in Japan (6/5, 1961-1963)
2/58
- takumar 1:2 f=58mm Asahi Opt. Co., Japan (6/4, 1957-1958)
- takumar 1: 2 f = 58mm Asahi Opt. Co., Japan (6/4, 1957-1958, labeled 'R')
DA (APS-C: 1.4/55 DA* + 1.8/50 DA)
- SMC PENTAX-DA * 1: 1.4 55mm SDM (9/8, 21790, 2008->)
- SMC PENTAX-DA 1: 1.8 50mm (6/5, 22177, 2012->)
Asahi-Kogaku (M37x1, 3.5/50 + 2.4/58 -> M42)
- takumar 1: 3,5 f = 50mm Asahi-kogaku (4/3, 1952, M37×1)
- takumar 1: 3.5 f = 50mm Asahi-kogaku (4/3, 1952, , M37×1, pre-set)
- takumar 1: 2.4 f = 58mm Asahi-kogaku (5/3, 1954, M37×1, silver)
- takumar 1: 2.4 f = 58mm Asahi Opt. Co., Japan (5/3, 1957-1958, M42)
The lens names in this list correspond exactly to the lens name label on the lens barrel (except for the serial number and/or filter diameter).
Main technical characteristics of SMC PENTAX-M 1:1.4 50mm Asahi OPT. CO., Japan:
Review Instance Name | SMC PENTAX-M 1:1.4 50mm Asahi OPT. CO., Japan |
Basic properties |
|
Front Filter Diameter | 49 mm, metal thread for filters |
Focal length | 50 mm |
Zoom ratio | 1 X (this is a fixed lens, it does not have a zoom). |
Designed by | for film cameras with a frame size of 24 x 36 |
Number of aperture blades | 8 petals. Petals dark matte
At values from F / 2 to F / 2.8, the aperture blades form a hole with small notches |
Tags |
|
Diaphragm | from f / 1.4 to f / 22.
The lens has an aperture control ring. The ring has marks for F/1.4, 2, 2.8, 4, 5.6, 8, 11, 16, 22. You can set one additional value between each pair of numbers (except F/1.4->F2 and F/16->F /22). |
MDF | 0.45 meters, maximum magnification ratio 1:6.7 |
The weight | 235 grams (measured) |
Optical design | 7 elements in 6 groups
The same optical design is used by older lenses of this family:
and newer:
|
Lens hood | Threaded, screwed into the front filter thread |
Manufacturer country | LENS MADE IN JAPAN (inscription on the body, the lens is made in Japan) |
Period | 1977-1984. Subsequently replaced by SMC PENTAX-A 1: 1.4 50mm |
Price | About 100 cu for used option. |
Lenses based on the same optical scheme as the SMC PENTAX-M 1:1.4 50mm Asahi OPT. CO., Japan (from this review, produced from 1972 to 2018 (almost 50 years). The first was a manual SMC TAKUMAR 1: 1.4/50 ASAHI OPT. CO., JAPANand the last one is autofocus SMC PENTAX-FA 1: 1.4 50mm.
Assembling, focusing
SMC PENTAX-M 1:1.4 50mm Asahi OPT. CO., Japan is well assembled. Separately, it is worth noting the small size and diameter of the light filter by 49 mm.
The focus ring has an anti-slip insert made of very rough material, rotates approximately 225 degrees (5/8 of a full turn). The course of the ring is very smooth, oily, pleasant. During focusing, the front retractable part of the body does not rotate. Focusing occurs by moving the entire lens block.
The lens uses a Pentax K mount and can be mounted on any modern Pentax digital SLR camera with a K mount.
The front lens shimmers with vibrant hues: red/pink, blue/cyan and purple.
Sample photos (APS-C)
The pictures in the gallery above were taken with a camera Pentax K10D (camera view).
All photos in the gallery above are shown without processing. Camera used Sony a3500 (Sony Exmor APS-C HD CMOS sensor at 20 MP). All photos are in-camera JPEG, technology ZEROJPEG. Some photos suffered due to the effect bokeh degradation at fast shutter speeds and wide apertures during EFCS (Y Sony a3500 EFCS cannot be turned off). camera used with adapter Pentax K -> Sony E (NEX).
Source photos can download / watch this link (Google Drive Gallery).
Sample photos (Full Frame)
The pictures in the gallery were taken with a camera Canon EOS 5D (Full Frame, 13 MP) and adapter Pentax K -> Canon EF. Technology ZEROJPEG. Sample photos, specially for this review, prepared Natalia (Instagram). Some of the photographs were taken using macro rings for Canon EF, as SMC PENTAX-M 1:1.4 50mm Asahi OPT. CO., Japan can catch a mirror with its long protrusions from the side of the bayonet Canon EOS 5D with normal adapter Pentax K -> Canon EF, macro rings remove this problem.
Source photos can download / watch this link (Google Drive Gallery).
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Material prepared Arkady Shapoval.
The article is super! Apparently, a good lens! It’s a pity that it’s not for Nikon. The photos are interesting. Now I also began to clap mainly only with ISO 100. Question about the exif'a of the first photo with tulips, such a long exposure of 1/80 with such a high ISO of 640, was it really that dark there?
Yes, the sun has already set. Photographed on the balcony, on MDF, with MDF, the real aperture value falls somewhere to 3,2-3,5. So we got such an excerpt. For Nikon, there are many great alternatives, which are the native manual fifty fifty 50, or our proven Helios-1.4N.
Yes, I myself have often thought about the Nikon 50 1.4, but some boring bokeh compared to 81n. I will probably never change Gelik! The only thing - sometimes you want autofocus in it. But if you don't find fault - the best lens for all occasions! Especially on fx probably!
I also think so, I have two G-81N.
And how do you like Nikkor-HC 50/2 in comparison with Helios and the new Nikonov poltikov.
Nikkor-HC 50/2 did not stay, I can not say.
These takumars are many different (threaded): depending on the year of manufacture and the presence of enlightenment. There is just super takumar 50 / 1.4 and super multi coated takumar 50 / 1.4 and smc takumar 50 / 1.4
For example, I have such a couple:
http://s018.radikal.ru/i515/1206/43/1fb74ff8cf95.jpg
smc takumar (the one with traces of a fall) - the last threaded version, as I understand it, is an analogue of the one you describe in the article.
PS. You seem to take lenses to describe on the site? Of relative rarity, I have a takumar 85mm / 1.9 - I can let you play
I will be glad to accept for a review. I am in Kiev, if you have the same location, then you can cross. My contacts are easy to find on the site. Anyway, thanks for the suggestions.
Pentax A 50mm 1.4
What is his mount, and is it possible to attach it to Nikon?
Bayonet K, like many other Pentax. Converting to Nikon is difficult.
Easily! Nikon adapter and you're done
ps M-42 - Nikon
Arkady, good day * morning, evening, night - also good :) *
Could you tell me, is the aperture ring of this lens with fixed intermediate positions between the stops? Or does it spin freely without them? In short, is it suitable for video?
Thank you for the site - a very useful business!
No, rattle in the footsteps.
OK, thanks. Well, I'll go look for a high-aperture "video fifty" further)
Hello.
Can you tell me on the K-7, too, only the manual shutter speed and aperture mode?
There the bayonet mount is slightly different from the K-10.
Arkady! Tell me pliz ... maybe you tried this SMC Pentax M 50 mm 1.2 Can you tell us a little? Thanks.
I have not tried this.
can you explain ... just bought this lens for pentax kx. but the shutter button does not work, this lens has a wider aperture blade than a standard, what options can there be?
There is a Pentax 50 1.2 how to combine with Nikon d5100. Thanks for all the reviews it is NEEDED !!!
Good night !! Tell me please, I have a fotik EOS Kenon 1100 D WILL I GO TO HIM Super-Multi-Coated TAKUMAR 1.4 / 50mm lens? And is there any sense in buying such a fotik or is it easier to fotik a new one !! ???.
You have a slight inaccuracy - the first 8-lens Takumar 50 / 1.4 was just NON-radioactive, subsequent versions, up to the last M42, before the bayonet ones, are all radioactive, to a greater or lesser extent. It was checked personally with a dosimeter.
Inaccuracy removed. Thanks.
Arkady, hello
I bought myself the same lens, only A. The diaphragm’s tongue walks very tight, the camera doesn’t support its lifting, maybe you know what can be done?
Thanks in advance
Best regards, Dmitry
Petals in oil, need to be cleaned.
Please tell me what is the difference between Pentax-A SMC 50mm f1.7 and SMC Pentax-M 50mm f1.7?
can you put it on kenon?
Yes, you can.
Good day, Arkady! I read on the forums that it is possible to use the SMS Pentax-M 10: 10 1 mm lens on the Samsung GX-1.7 (Pentax K50D). I put the lens - F- lights up, in manual mode no change and the shutter does not work. For the first time on a digital camera I work with a manual lens and I'm afraid to do something wrong. Can you tell me what is the reason?
It seems to have figured out the shutter, changed it in the settings menu. I have not mastered it to the end, but the first photos are pleasing. An interesting lens!
Wheel in mode M and a small button with a green dot, and a lot of good photos.
how did you manage? I bought today, my F- and M are also lit
Good day, Rinat. Please tell me if the focus indication lamp lights up when using SMC Pentax-M 1: 1.7 50 mm on the Pentax K10D
To begin with, we program the “green button” for exposure metering: Menu-my settings-p.14 (for K200): * green button in manual ... * -pp2 (diaphragm pior) -OK! When shooting, the wheel is on “M” , switch Af-Mf in Mf (otherwise the shutter button may not work), set the aperture. Then everything is simple: I focused, pressed the green button, caught the shutter button. The masterpiece is ready! +++ THANKS, Arkady, for the most interesting reviews !!! +++
Bought a SMC M50 f1.4 with red enlightenment, what's the difference?
My favorite lens, I’m practically not taking it off the carcass. On Pentax K-20, problems with aperture recognition were not noticed
Good day! Help me please! I bought a Pentax K-30 carcass. And I wondered which poltos to buy: Helios 81 n or this SMC Pentax-M 1: 1,4.
Help me please!
Thank you!
This is my favorite lens I use on kenon.
For connoisseurs of this lens, there is a copy of the first version, the price is negotiable, anyone interested write Foravar108@yandex.ru
Good day. There is this lens with traces of fungus on the lenses. Is it fatal to him or can it be fixed? Is the lens disassembled? Does it have bonded lenses?
Selling lenses SMC Pentax-M 50 mm f / 1.4 http://fotoselling.ru/products/14786532 и http://fotoselling.ru/products/18893716
Novosibirsk + by mail in Russia and abroad
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