Ortho-protar (Zeiss) 19 cm 1:25

[tripod]

Hello everybody !
Can this lens (Ortho-protar (Zeiss) 19 cm 1:25) be used in LF photography and in what capacity? For macro, landscape?
Carl Zeiss Jena №1297582 Ortho-protar 1:25 f=19 cm

[Dan Fromm]

The Ortho-Protar is an f/8 six elements in two groups orthoscopic (low distortion) lens. According to a 1910 Zeiss catalog it is suitable for all "scales of reproduction." In other words, for all subjects, near or far.

Do you have a complete lens (two cells in barrel or shutter) or a single cell? The rear cell, whose focal length is about twice that of the complete lens, can be used for "landscape."

[tripod]

thanks for your reply ! My lens have glasses in front and rear, fixed apertur and smoll size - 1.5 inch long! looks like "process" lens!

[Dan Fromm]

Impossible to be sure, but it sounds like a single cell. Is there a barrel in the middle? Is it engraved Ser. IXa?

[tripod]

[Dan Fromm]

Thanks for the photos. Not at all the general purpose lens described in the catalog.

[tripod]

my lens close to e...ay item number:371867892014