Optimo

Optimo shutter with Taylor-Hobson Cooke Kodak Anastigmat on a No. 1A Autographic Kodak Special folding camera image by Nesster (Image rights)

Wollensak's Optimo was a sophisticated versatile everset shutter since it had slow speeds from 1 sec. and two fast speeds beyond 1/100 sec.. It had five shutter-blades. It had been produced since 1909.

In Europe it was delivered as Velosto shutter.