Yashica’s M42 screw mount 35mm SLR cameras were super successful and in some cases, groundbreaking. Yashica was known as a “Pioneer in Electronic Cameras” during the 1960s and 1970s with the TL Electro-X being the first electronically controlled SLR camera. My good friend and fellow Yashica collaborator Paul Sokk ( YashicaTlr.com ) and I have studied Yashica’s serial numbering system as it applies to their 35mm SLRs that used the universal M42 screw-in lens mount.
These dates represent the earliest finding of an individual model based solely on their serial numbers – not necessarily their release date. In some cases, the dates are still fluid as there is still the possibility of finding a stray in the wild that would prove an earlier production date.
Yashica often included a month and year in the first 3 or 4 digits of the camera’s serial number. By decoding these numbers Paul and I have come up with the following list.
- Penta J 6/1961
- Reflex 35 3/1962
- J-3 2/1963
- J-5 3/1964
- J-P 8/1964
- J-4 4/1965
- TL-Super 4/1966
- J-7 11/1966
- TL 11/1967
- TL Electro-X Type 1 10/1968
- TL Electro X Type 2 7/1969
- TL-E 6/1969
- ITS 12/1970
- TL-Electro 4/1972
- Electro AX 3/1972
- FFT 7/1973
In some cases, the dates are from cameras that appeared in sales brochures and user manuals. We have a high degree of confidence that these dates are correct and that they reflect a true chronology of these cameras as of this post.
Here’s an example of a Yashica serial number during this period –
(81200636) 8 = 1968, 12 = DEC, and 00636 = 636th made that month.

The serial number on my Yashica TL Electro-X Type 1
If you’ve found a camera that exists outside of these start dates, please feel free to let me know and if you have a serial number that you’re unable to decode send it my way. You can contact me at ccphotographyai@gmail.com
Thanks – Chris
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Look closely at the two boxes in the lower center part of the scan. Plainly marked is the name “Yasinon” and Yashica. Just to the right are two boxes made in the same style that displays the lens maker “Zunow”.
From the same year Yashica catalog here’s a grouping of three 8mm movie camera lenses – two marked made by Zunow and one marked with the name “Yasinon”.
Yashica’s first 35mm camera – the Yashica 35. If you look closely at the camera lenses you’ll see that they’re marked with the Yasinon name.