History: A small portrait petzval lens made by a french (or maybe british?) maker. The engraving has two parts, the first reads:

'Orthoscope'

This is rather interesting, since it doesnt feature the actuall Orthoskop layout (which was invented by Joseph Petzval and sold later by Voigtländer), but its rather the portrait Petzval layout.

In any case it remains a wonderfull historic petzval lens that was made for photography and not for projection.

The focal lenght is about 150mm and the open aperture is around F3.6. It covers 4x5 with a destinctive petzval character in the outer region (especially in the larger format).


Condition: This brass beauty comes in a good condition. The brass looks nice and shows only minor wear and a nice protective laquere. The rack & pinion mechanism is complete and mostly is working nicely. The glass is in good condition also, minimal clening marks here and there, but that wont affect image quality at all. Besides that there is no haze, fungus or seperation.


It comes with a fitting flange, a waterhouse stop and a brass lenscap.



height: 12cm
width: 5.5cm
weight: 500gr

Insured and tracked shipping cost:

Germany - 10 eur
EU* - 30 eur
Worldwide - 80 eur

*(the site offers only 2 shipping variations, DE and worldwide. buyers from EU please either contact me beforehand for a reduced EU cost, or after buying so i can send a refund over the difference)

Importent Note: This item comes from my private collection and is around 100 years old (antique). I try my best to describe all the faults and major damage which are relevant for the function of this item. But the actuall item can show signs of wear and also some cosmetic blemishes/damage which is not described in the auction text! When buying this item the buyer agrees to this terms.