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قراءة كتاب Kodaks and Kodak Supplies, 1914

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Kodaks and Kodak Supplies, 1914

Kodaks and Kodak Supplies, 1914

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دار النشر: Project Gutenberg
الصفحة رقم: 2


This shutter is well made in every respect, it works with bulb and tube or finger release, and is fitted with the Kodak Autotime Scale—a great help for amateur photographers, especially beginners.

The Brownie Ball Bearing shutter works not only for time and bulb exposures, but has variable indicated speeds of 1/25, 1/50 and 1/100 second. It is fitted with iris diaphragm and supplied with the Nos. 3 and 3A Folding Brownie cameras.

For a more complete description of the Kodak Autotime Scale supplied with this shutter, see page 8.


Compound Shutter

The Compound shutter is an automatic and setting shutter combined. Automatically, either time or bulb exposures may be made, while it may be set for speeds of from 1 to 1/150, 1/200 and 1/250 second, according to size of shutter. The shutter leaves are formed of segments opening in star shape, giving even illumination over the entire plate the instant the exposure is started, and an iris diaphragm is supplied for stopping down.

Case is made of aluminum, and accurate adjustments can be made with the shutter in any position.

Regularly supplied on the Nos. 1A, 3, 3A Special and Six-Three Kodaks and as a special equipment with the Nos. 4 and 4A Folding Kodaks.


Kodak Automatic Shutter and Kodak Autotime Scale

The Kodak Automatic shutter is carefully adjusted for time, bulb and instantaneous exposures. It is also graduated for fractional parts of a second, and is unusually accurate.

This shutter is fitted with the Kodak Autotime scale and is supplied as a special equipment on the Nos. 1A, R. R. Type; 3, 3A and 4 Folding Pocket Kodaks.

The Scale greatly reduces the liability of error in exposure, as it automatically indicates the proper time and stop opening for subjects under any condition of outdoor photography. It is exceedingly simple to use. The speed indicator is merely set at the point on the scale indicating the kind of light prevailing and the diaphragm indicator at the point indicating the character of the subject.

These scales are also supplied at a nominal charge for the following shutters when fitted with double lenses only, and can be readily attached by any amateur. Always order by Style letter.

Style A. For use with Kodak Ball Bearing shutter, 2½ × 4¼ and 3¼ × 4¼.

Style AA. For Kodak Ball Bearing shutter, 3 × 5¼, 3¼ × 5½ and 4 × 5.

Style B. For use with F. P. K. Automatic, 2½ × 4¼ and 3¼ × 4¼, No. 1 S. V. (Blair or Premo) Automatic, or No. 1 B. & L. S. V. Automatic shutters.

Style BB. For use with F. P. K. Automatic, 3¼ × 5½ and 4 × 5, No. 2 S. V. (Blair or Premo) Automatic, or No. 2 B. & L. S. V. Automatic shutters.

Style C. For use with Kodak Automatic shutter, 3¼ × 4¼.

Style CC. For use with Kodak Automatic shutter, 3¼ × 5½ and 4 × 5.

Style D. For B. & L. Automatic and Century Automatic shutters, 3¼ × 4¼.

Style DD. For use with B. & L. Automatic and Century Automatic shutters, 3¼ × 5½ and 4 × 5.

Style DDD. For use with B. & L. Automatic shutter, 4¼ × 6½.

Style I. For use with Kodak Ball Bearing shutter, 2¼ × 3¼.

Price, any of above styles, $1.00.

Style H. For use with No. 0, 3¼ × 4¼ Compound shutter.

Style HH. For use with No. 1, 3¼ × 5½ and 4 × 5 Compound shutter.

Style HHH. For use with No. 2, 4¼ × 6½ and 5 × 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 ⅛ 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 Special Kodaks fitted with Zeiss Kodak Anastigmat lens, f. 6.3—a lens fully corrected and offering the advantage of high speed.

These have been followed by the Six-Three Kodaks. These differ from the Specials in that they are simply our regular Kodak models, without the special covering and finish of "Specials," and fitted with anastigmat lenses specially designed by Taylor, Taylor & Hobson, for Kodak use and called the Cooke Kodak Anastigmat. This lens works at f. 6.3 and is fully corrected in every particular.


Vest Pocket Kodak

The extraordinary popularity of the Vest Pocket Kodak is due not alone to its compactness—it is so flat and smooth and small that it will readily slip into a vest pocket—but also to the excellent quality of its pictures, whether printed by contact or enlarged.

In fact, this little camera in itself is so very desirable and of such general utility, that we furnish it with several different equipments to meet any demand.

For average photography, the camera fitted with Kodak Ball Bearing shutter and tested meniscus achromatic lens is amply efficient, for it will make excellent pictures under ordinary conditions.

For those who want the microscopic definition of the anastigmat, we offer the Vest Pocket Kodak, this year, fitted with the new Kodak Anastigmat lens. This lens works at f. 8, it is fully corrected, and made of the