science

Tenax I

Tenax I is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Tenax I rather than just read about it. In short: The Tenax I is a 24x24 mm fixed lens camera by Zeiss Ikon launched in 1939. The Tenax I was actually launched after the Tenax II.

Key takeaways

Tenax I belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Tenax I to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Tenax I from memory before moving on to harder problems.

Reference excerpt

The Tenax I is a 24x24 mm fixed lens camera by Zeiss Ikon launched in 1939. The Tenax I was actually launched after the Tenax II. Like the Tenax II, it is a 24×24mm square-format camera taking over 50 exposures on a standard 135 film (35 mm), with a rapid-advance lever next to the lens. But it is a much simpler camera, with a completely different body, no rangefinder, a simple folding viewfinder on the top plate, and a Compur leaf shutter to 1/300". Most of them are equipped with a Zeiss Novar 3.5 cm f/3.5 lens. A smaller number have a Carl Zeiss Jena 3.5 cm f/2.8 Tessar. Production began in 1938, and it was nearly halted in 1941. There was limited production during the rest of the war. After the war, the East German Zeiss Ikon company continued the model. At the beginning the shutter was a Compur to 1/300" or a Compur-Rapid to 1/500", then it became the East German Tempor to 1/300". The lens could be the same Zeiss Novar 35mm f/3.5, or a Carl Zeiss Jena 37.5mm f/3.5 Tessar. The body code number was 111/23 with the Novar and 111/24 with the Tessar. The Tenax was modified in 1953 with a fixed viewfinder integrated in a higher top plate with the exposure counter inside it, and a revised advance lever. Soon after it was renamed Taxona, because the East German company had lost the rights to use the traditional Zeiss Ikon names, property of the Western Zeiss Ikon company. At the same time, the Novar name became Novonar. The tip of the advance lever became black in 1954. Production ended in 1959. The Tenax name had been used earlier by Goerz for their Taro-Tenax 9x12cm folding plate camera.

References

External links The Tenax I page at the Pacific Rim photographica pages A web page about the Tenax I at the Frankfurt-Höchst website The Tenax page at Lumières en Boîte Tenax at www.collection-appareils.com

Illustrations

Worked examples

Example 1 — a first encounter with Tenax I

Start with the simplest possible case. Write down what Tenax I claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Tenax I before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Tenax I ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Tenax I

In research: Tenax I appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Tenax I in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Tenax I is common in secondary-school and first-year university syllabi. It links to neighbouring topics Carl Zeiss AG cameras, so understanding it makes those chapters shorter.
In everyday life: Look for Tenax I outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Tenax I in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Tenax I means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Tenax I out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Tenax I in simple terms?

The Tenax I is a 24x24 mm fixed lens camera by Zeiss Ikon launched in 1939. The Tenax I was actually launched after the Tenax II.

Why does Tenax I matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Tenax I?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Tenax I.