D. For use with B. & L. Automatic shutter, 4-1/4 x 6-1/2.

Style I. For use with Kodak Ball Bearing shutter, 2-1/4 x 3-1/4.

Price, any of above styles, $1.00.

Style H. For use with No. 0, 3-1/4 x 4-1/4 Compound shutter.

Style HH. For use with No. 1, 3-1/4 x 5-1/2 and 4 x 5 Compound shutter.

Style HHH. For use with No. 2, 4-1/4 x 6-1/2 and 5 x 7 Compound shutter.

Price for any style Compound shutter, $1.50.

Kodak Lenses

The regular R. R. and meniscus lenses used on Kodak and Brownie Cameras
have always been the best lenses of their respective types that could be
secured. These lenses are perfectly adapted to everyday amateur
photography, producing pictures under normal light conditions that leave
nothing to be desired by the average amateur.

For those, however, who wish even greater efficiency and capabilities,
we supply the anastigmat lens equipments.

The superiority of the anastigmat lens, without attempting to go into
the technicalities of the subject, consists of--Perfect definition over
the whole negative, absolute flatness of field, and higher speed.

In R. R. lenses the tendency to lack of definition toward the edges,
which always occurs in an uncorrected lens, is so slight as to be
unnoticeable except to the most expert eye. In a true anastigmat, it is
entirely eliminated.

The speed of a lens is determined by the relative size of the diaphragm
opening. An R. R. lens cannot be used at an opening greater than 1/8 its
focal length, commonly designated as _f._ 8. But an anastigmat lens can
be so corrected as to permit the use of larger diaphragm openings and
still produce sharp, clear negatives. This larger opening admits more
light within a given time than that of the R. R. lens, hence the
anastigmat is much faster. Thus the Zeiss or Cooke Kodak Anastigmat
lens, working at an aperture of _f._ 6.3 admits 60 per cent. more light
in a given time than does the R. R.

This speed advantage enables the user to make short exposures on dull
days or under poor light conditions, where hopelessly undertimed
negatives would result with an R. R. lens. And under proper conditions,
exposures up to 1/250 second with a Compound shutter and 1/1000 with a
focal plane shutter, can be made with the anastigmat.

In the last few years there has been a steadily increasing interest in
and demand for anastigmat lens equipments among amateur photographers,
and we responded to this demand, first by furnishing the Sp