This is the SUPER-Takumar 50mm f/1.4. Chapter 26.

In this video, I discuss the history and details of the Super Takumar 50mm F 1.4 lens, highlighting its various generations and production specifics. The video begins by acknowledging the contributions of Saburo Masumoto and his colleagues in developing the Takumar lenses.
My key points include:
Origin of the Name;
Lens Specifications;
Generational breakdown of the different generations of this lens;
Identifying Generations; and
Compatibility Issues.
Overall, the video is an informative guide for camera enthusiasts and collectors interested in the Super Takumar 50mm F 1.4 lens, its history, and its technical specifications.
在本影片中，我將討論 Super Takumar 50mm F 1.4 鏡頭的歷史和詳細信息，重點介紹其各個代和生產細節。影片首先感謝了 Saburo Masumoto 及其同事在開發 Takumar 鏡頭方面做出的貢獻。
我的要點包括：
名字的由來；
鏡頭規格；
該鏡頭不同代次的代次細分；
確定世代；和
相容性問題。
總體而言，該影片為對 Super Takumar 50mm F 1.4 鏡頭、其歷史和技術規格感興趣的相機愛好者和收藏家提供了資訊指南。

[@Democratiser]

Very interesting! I checked the serial numbers of my f1.4 Super Takumar lenses. I have at least one copy of series 1, 2 and 4. All near mint. They are amazing lenses.

[@red_code]

I'm happy to hear from you on having copies near mint. Love your glass, have fun, and thanks for your comment.

[@seoulrydr]

i refuse to go find a the special version of the 50mm! i'm lying. now i want one. i appreciate the detailed information contained in this video - thank you!

[@krustysurfer]

Great knowledge bomb 🙌 thank you and great video

[@red_code]

Thank you.😊

[@stephenreynolds6414]

I have the third generation of this lens and it is wonderful. The images that are produced are beautiful.

[@red_code]

Your comment rocks! Yes, we are speaking in "generations" and not based in serial numbers. Love your glass, no matter 8 or 7 elements.

[@stephenreynolds6414]

@@red_code I have seen a couple of reviews on You tube comparing the 8 v 7 element versions and there wasn't any noticeable difference. All Takumars are great.

[@ohjajohh]

Thanks for the background information about Pentax! I love Pentax lenses

[@red_code]

During my research for the Asahi's History Timeline (Pentax) I found "the master stone" from them, a relic, rare to find over the net. Their "Jupiter binoculars"! One more piece to my collection.

[@slammermx]

I have a K3 ii and just bought the SMC 100 mm F/4, I'm loving it.

[@red_code]

Love your lens.

[@mikepxg6406]

Great video thank you.

[@red_code]

You welcome.

[@d30gaijin]

Very interesting video. That you! My copy of the SMC Takuma 50/1.4 seems to be an anomaly. It's serial number (4620xxx) puts it in the last generation but the inscription on the back of the "manual/Auto" change switch is inscribed 37902 rather than 37802.

[@red_code]

Your copy is a Super-Multi-Coated Takumar. Their evolution - Takumar; Auto-Takumar; Super-Takumar; Super-Multi-Coated Takumar and last SMC Takumar. The product #37902 belongs to Super-Multi-Coated Takumar and the lens is coated with thorium too. Your copy were assembled after, or within the previous models Super-Takumar 1:4 / 50mm (37801 and 37802). Thank you for your comment.

[@Rick_B52]

I REALLY appreciate the attention to all the versions and serial number identification. Been trying to figure out which I have for a while. SN# 3.7mill so 68-69' most likely.

[@red_code]

Hi, can you provide some more info about your lens, and I would try to figure it out.

[@harrison00xXx]

Awesome lens, doesnt matter if its a 2nd gen or latest 1969+ one I have the SMC Takumar with rubber focus ring and SN 5655555. I didnt mind the generation too much as long its not the earliest one with 8 elements. My main focus was on a good price and condition of the lens since its mainly used for low light and fun stuff here and then only

[@red_code]

Wow, lucky you with that SN.😀

[@simonc4764]

I'm aware there are actually two versions of the early 8 element lens. The early version produce softer image but the later version has thorium and is sharp just like the 7 element lens.

[@red_code]

Wow, if you found something, just let me know and thanks for your comment.

[@genleague7663]

Thank you for your great video. I really love to own this legendary lens but i have a bit concern whether this radioactive lens will impact the mirrorless camera sensor over the period of time? Does this matter need to be worried? 👍

[@red_code]

As easy as a piece of cake. I have several radioactive lenses, specially the Carl Zeiss Pancolar (Zebra) 50mm f/1.8 (the strongest one). Unmount it from your camera body and if you don't feel safe, put it inside of a tin and close it. Only it's unsafe if you grind the glass dust and have direct contact with your body. Thanks for your comment.

[@Andy-rk9mu]

Thanks for the great and information filled video. I was a bit confused about the R explanation: 2:20. There are many gen1 for sale with just a line on the right but could not come across one with R. Was it like a limited edition?

[@red_code]

Hello to you and thanks for the comment. When you see the red line on the right-hand side of mark 4, this one is the 8 elements or, the first generation doesn't have any inscription behind the iris control. Little red "R" is legacy, not every lens has it. It was taken out of the market because of the problem explained in this video. Japanese people care a lot about their consumers. For them, the main point is, that the lens should be used with other Spotmatics free from problems, but this was problematic.

[@Andy-rk9mu]

@@red_codeThank you for the explanation. I see it now. I just ordered one, but I went after the radioactive.

[@red_code]

@@Andy-rk9mu 😊👍

[@jean-francoisgrasset744]

Thank you for all these very useful information. If I buy the 1st generation, can I use the lens with a LX or MX (with an adaptor), with no risk to damage the lens ?

[@red_code]

Hello and thank you for your comment. I fear of that. Even the LX were introduced in 80s to commemorate the Asahi Optical, if I stood in the position of Pentax, I will think “that lens was removed from the market long time ago , and for the sake of a tree will not abandon a forest.” Use with extreme caution. Try to fire once in slow shutter and in a silent room. If it hits, sound and impact will be noticed.

[@red_code]

If your adaptor is thicker then 0.5cm, I think it would do.

[@TheFuse25]

Awesome video, than you for your research and hard work! I have a question regarding the compatibility of the 8-element takumar: will the mirror mechanism of the Spotmatic SP damage the rear element of the glas? Thank you!

[@red_code]

Hello and thank you for your comment. If you own an 8-element version, you must pay close attention to the "R" at the film rewinder knob. If your Spotmatic SP holds a GREEN "R" it is UNSUITABLE, the push-plate will damage the rear element. If in RED, that's OK. Have a look at the 01:03:32:12. Thank you again.

[@TheFuse25]

​@@red_codethank you very much! Have a great day!

[@TheNaught1]

I guess you could say that’s a red code.

[@NeoPlatina2009]

I have the serial number 998219 of this lens. Very close to the 998383 you own :)

[@red_code]

😍

[@jean-marcschwartz2525]

Are these radioactive lenses dangerous for our eyes our health in the time?

[@red_code]

I keep those radioactive lenses inside a tin and away from me, as a precaution. Many articles I have read are, only harmful when you accidentally hurt yourself with glass shards. Don't fear it too much because you are not sleeping with it or always carrying it with your camera. But the devil of that "brown yellowish tint color" is unsustainable. Thank you for the comment.

[@_Drab]

Hello. I have prod. 37908 SMC Takumar ser. 7654183 What you can say about this lens ?

[@red_code]

Hello. Your 50mm f/1.4 lens serial numbers range from 5346xxx - 7932xxx and are produced in 72 to 75. It's larger and heavier than before generation and it's 8 blades. At f/2, did you get round bokeh? Thank you for the comment.

[@_Drab]

@@red_code thank you. Yes

[@_Drab]

@@red_code and I have 6,5 mZv gamma radiation (>30x) on back lens

[@red_code]

@@_Drab interesting lens.