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The Mask | by leo.roos
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The Mask

a7 + Hugo Meyer Satz Plasmat 1:4.5 f=17,3cm (1940)

 

The Satz Plasmat is a convertible lens: camera-wiki.org/wiki/Convertible_lens

 

Depending on the lens group used, it has the following focal lengths:

 

front + rear group: 173/4.5 (Satz Plasmat 1:4.5 f=17.3cm)

rear group only: 250/8 (Plasmatlinse 1:8 f=25cm)

front group only: 360/11 (Plasmatlinse 1:11 f=36cm)

 

The aperture unit is in the middle.

The lens has 3 aperture scales: 4.5-32, 8-32, 11-32

 

For this photo front + rear group were used: Satz Plasmat 1:4.5 f=17.3cm

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Taken on June 21, 2019