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Carton Zoom 15x-40x / 40mm

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#1 moladso

moladso

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Posted 01 August 2022 - 04:55 PM

Just to satisfy my curiosity I bought this slightly used Carton Zoom 15x-40x 40mm telescope.

 

It is in perfect physical and optical condition, and I have been pleasantly surprised by the quality of this little instrument. For sure it's not a toy.

 

IMG_7776 Medium.jpeg

 

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The original case of the instrument has a deep violet color with the text "Zoom Telescope. 15x -40x 40mm" written in black on a gold colored sticker. Inside it contains a hand inscription that seems to indicate the date of acquisition, in 1983, so it is almost 40 years old. It is Japanese-made and has a yellow JTII sticker with purple letters (which could indicate a manufacturing date before 1981).

 

IMG_7804 Medium.jpeg

 

The simple chrome tabletop tripod is very well made and the telescope is very stable. The telescope has a standard 1/4" thread which allows it to be used on photographic tripods.

 

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The lens has only one of its faces coated with bluish tones. The eyepiece does not appear to have any treatment.

Observing the Moon shows obvious out-of-focus chromatism, but it's better than you'd expect from such a telescope once it's focused. The zoom lever induces a slight image shift, but focus remains nearly perfect throughout the entire 15x to 40x range, not requiring refocus. The field of view is flat.

 

IMG_7780 Medium.jpeg

 

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Although several zoom telescope models appear in the catalogs of that date (B-710/10T, B-712/12T, B-714/14T), none of them correspond to this 40mm unit.

 

Maybe someone could expand some information on it.


Edited by moladso, 01 August 2022 - 04:58 PM.



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