History: The Ross lenses are very well known and respected, especially the Ross Cabinet portrait petzvals are among the fines optics ever made. This specimen is not a portrait lens, but is still very fascinating, or maybe even more because of that. There is not much to none info on the Ross Wide Angle Xpress line on the net.

The most impressing here is not only that the lens has a wide angle design (which offers a very large image circle compared to its F) but it also offers a F4 starting aperture! There are plenty of wide angle lenses out there, but i dont know any which have this combination.

This is the 4" (or 100mm) civilian version, which is pretty rare, compared to the more common 5" military version.


Condition: The best part about this specimen is that its the civil version, mostly you will find the larger black version. The civol version is more compact and offers a better aperture, which can be stopped all the way down to F32.

The metall housing looks very good, there is minimal to no wear at all. The glass is a good condition mostly, showing some scuffs/marks, which wont affect the image quality. There is no haze or fungus.

The lens comes with a fitting flange.



height: 4cm
width: 4cm
weight: 200gr

Insured and tracked shipping cost:

Germany - 10 eur
EU* - 20 eur
Worldwide - 70 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.