I Bauscb & Lomb-Zciss 

 Convertible Jlnastigmat 



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3 LENSES IN ONE | 



represents the Q^ 



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is suitable for all kinds of work from the fast- jp 

 est snap shots to portraiture and long distance J«j 

 photography. Circular tells more. ^P 



The Convertible Anastigmat 

 highest attainment in lens making. The speed 

 ranges from f-6.3 to f-7.7 in the doublets 

 and for the single combinations is f-12.5. It 



tf-6£ 



The Lens of the Century A 



Plastigmat f-G.S is the newest of the high grade fjh 

 lenses made by us and is constructed espe- \M 

 cially to elminate the undesirable features of ™ 

 the older lenses. Optically and physically it 

 is the pink of perfection. Rapid, immense 

 illumination, no astigmatism, absolutely perma- 

 nent glass. Either combination can be used 



1 separately for long distance or portrait work. 

 IT? reproduction of five difficult plastigmat pictures free. 



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Bausch ®> Lomb Optical Co. 



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New York 



ROCHESTER, N. Y. 



Chicago 



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5S^^^^^^3 7£J\ 



