Darlot Opticien (Paris, France)

Darlot View Lens (single achromat) Variation 2 (straight barrel, rotating stops, lens hood),  c. 1890's




 


Notes:  This lens is marked Darlot, but does not seem to be advertised in any of the catalogs herein.  This is a typical single achromat, where the largest  aperture useful for photography is considerably smaller than the diameter of the glass, as the fixed aperture visible in the straight-on photograph shows.  Smaller apertures can be selected via a rotating wheel.

References:

 

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