Details of exhibit

Exhibition:
1915 Sixtieth Annual Exhibition of the Royal Photographic Society of Great Britain  
Exhibit title:
THE "PORT-LAND" LENS  
Exhibitor:
James A. Sinclair & Co., Ltd. 
Section:
Professional and Trade 
Exhibit No.:
[607] 
Description:
A lens designed so that the spherical aberration is distributed over the field when a large stop is used, in order to produce the soft effects so much appreciated by artistic photographers, and thus reducing re-touching to a minimum. Stopping the lens down ensures critical focus for such work as copying. 
Exhibit type:
Photographic equipment and supplies 
Process:
[Not Listed] () 
Award:
none