520 



NEGRETTI AND ZAMBRA, HOLBOEN VIADUCT, E.G., 



SERIES No. II. 

 3162 ANTIPLANETIC LENSES FOR GROUPS. 



(About double the rapidity of the Aplanats in Series III.} 



These are for taking Portraits in a good light; also Groups, Architecture t 

 Landscapes, etc., etc. ; they have a greater depth and larger field, with more equal 

 definition and illumination than the lenses of Series I. The Group -Antiplanets are 

 an improvement over our Group -Aplanats, and possess all the advantages which can 

 be fairly expected in a good objective simultaneously and therefore render them 

 suitable for the various uses in the open air (en-route") and in the studio. They 

 consist of two cemented pairs placed so closely together that there is only just 

 room for the diaphragm. 



3163 



SERIES No. III. 

 APLANATS. 



These lenses are already well and favourably known for the good pictures they 

 give and their adaptability for either Architecture, Landscape, or even for Group 

 Work in the open air. 



The aperture to focus is as 1*7, angle about 60. 



