CZ Jena Tessar Performance

[Arne Croell]

1948 is about right for yor lens, Armin. When I am back home next week I can check the Jena production numbers to get the exact date.

Apo-Tessars have 43 degrees coverage according to Zeiss Jena. That translates into 378mm at 1:1 or about 189mm at infinity for the image circle. For pictorial use it is probably a little higher.

[Arne Croell]

Armin, the 189mm refered to RLF's question about an Apo-Tessar (f/9, 240mm), not a regular Tessar. The 250mm f/3.5 has a 300mm image circle according to Zeiss.

[Arne Croell]

Armin, as a follow-up to your question, your 250mm f/3.5 Tessar was part of a batch of 200 of these Tessars with the last one made March 11, 1948 (serial nos. 3071501-3071700, according to the Zeiss production files). The lens design dates from 1935.

[Armin Seeholzer]

Hi Arne

Zeiss Jena must be very conservativ about the image circle of my f 3.5 250mm. Because I just tested it on my 8x10 Sinar setup wich I have since 3 weeks and even full open the corners get not dark at all. After around 4 cm of shift it starts with darkening in the corners but I talking here at f 3.5! So now I know why it is so heavy and large! I'm in love with it!

[Arne Croell]

Armin, great to hear that it works well on 8x10. Be aware that in my experience there is a bit of focus shift with the 3.5 250mm Tessar when stopped down from wide open. That happens mostly between 3.5 and 5.6.

[Raidahl]

I rudely loan this topic for my own purposes
So I have this Carl Zeiss Jena Nr 1061943 Tessar 1:3.5 F=16.5cm
My question is that does those serial numbers apply also for these F3.5 Tessars?
Mine has this focusing system with feet scale not metric.

I might sound little bit stupid, cause I know that I have asked about this Tessar before, but only photo of this kind of lens is found from here, which happens to be the same that is owned by me now days

Actually my question is, have anybody seen this kind of a Tessar before? And possibly how rare it is?

[IanG]

Zeiss serial numbers are for all their lenses, so your lens is 1929/30, if it's in a Compur shutter that also has a serial number which can be used to date the lens.

It's quite a common Tessar probably from a press reflex camera with a focal plane shutter.

Ian

[Raidahl]

Zeiss serial numbers are for all their lenses, so your lens is 1929/30, if it's in a Compur shutter that also has a serial number which can be used to date the lens.

It's quite a common Tessar probably from a press reflex camera with a focal plane shutter.

Ian

Okay, Thank you very much.

[Arne Croell]

I rudely loan this topic for my own purposes
So I have this Carl Zeiss Jena Nr 1061943 Tessar 1:3.5 F=16.5cm
My question is that does those serial numbers apply also for these F3.5 Tessars?
Mine has this focusing system with feet scale not metric.

I might sound little bit stupid, cause I know that I have asked about this Tessar before, but only photo of this kind of lens is found from here, which happens to be the same that is owned by me now days

Actually my question is, have anybody seen this kind of a Tessar before? And possibly how rare it is?

This was made in a batch of 475 lenses for the Miroflex camera, finished on July 16 1929. Altogether 2887 units of this lens (designed in 1926) were made.

[IanG]

This was made in a batch of 475 lenses for the Miroflex camera, finished on July 16 1929. Altogether 2887 units of this lens (designed in 1926) were made.

Arne are you as good on other Tessars (1913) and post WWII CZJ serial numbers ?

You ought to update your articles on this website, your newer ones in PDF format (on your website) are excellent with much more detail. I've enjoyed reading them.

Ian