DAGUERREOTYPE, CALOTYPE, ENERGIATYPE, 



ETC. ETC. 



Willats's Improved Photographic Camera, with Best 

 Achromatic Lens 1 in. diameter ,TTionnted in Brass 

 Front, with variable diaphragm, fine screw adjustment 

 Frame with ground glass disc, and folding shatters, 

 for obtaining the focus, shifting frame adapted for 

 taking three various sized pictures, either by the 

 Daguerreotype or Calotype processes (Fig. 2) 310 



Ditto. Ditto. with compound set of achro- 

 matic lens, (See Fig. 5) 660 



This apparatus has the advantage of serving with all sorts 

 of object glasses, whether simple or compound, and 

 for all sizes of plates : its construction is very simple, 

 and not likely to get out of order. 



" PHOTOGRAPHY. A Camera on an improved principle, for taking photo- 

 graphic portraits and views, has been invented by Mr. Wiflats, 98, 

 Cheapskle, which, upon examination, will be found much superior to 

 that in ordinary use. We have heard many complaints of the common 

 camera, the insufficiencies of which we think Mr. \\ Ulats is in a fair 

 way to remedy. The camera invented by him is of superior value, 

 inasmuch as it can be adjusted with much greater facility and cer- 

 tainty ; and so obviates, in a great degree, the trouble often occasioned 

 by the old instrument. We have examined some of the pictures 

 executed by means of the improved camera, and find them most 

 perfect, even to the minutest detail." Art Union, August, 1844. 



Willats's Improved Photographic Camera, packed in case, 

 complete with every requisite, to enable the Tourist 

 to take correct sketches from the varied and beautiful 

 scenes in nature, and also well adapted for delineating 

 portraits with the greatest accuracy, consisting of 

 Mercury, Plate and Chemical, Boxes, (which contains 

 a full supply of the necessary preparations) Iodizing 

 and Bromine Pans, Polishing Block and Velvet Buffs, 

 Washing Tray and Stand, Brass Stand with adjusting 

 screws, Spirit Lamp, Etna, prepared Cotton wool, 

 with Directions 1010 



Ditto. Ditto, with double combination of achro- 

 matic lenses , 14 



Small Photographic Cameras, with sliding tube, and 

 Periscopic or Piano convex lenses, adapted either 

 c 



