This section is from the "Studio Light Incorporating The Aristo Eagle - The Artura Bulletin 1913" book, by Aristo Motto. Also see Amazon: Studio Light Incorporating The Aristo Eagle - The Artura Bulletin 1913.
Be with the times, ahead of them if possible, but never behind.
A photographer looked over the new apparatus shown at the Kansas City Convention and remarked that he had been following photography for the last twenty years.
But it was his further remarks that were most interesting. The first statement was merely an admission. He went on: I realize, as never before, that I have merely been following the profession. I am going to buy a lot of new apparatus, go home and do some advertising, and see if I can't catch up with it. And once I am able to catch up with it, I am going to see if I can't get ahead."
Christmas will soon be here and you should be better fitted to handle your business than you were last year. If you are not, you will not be able to profit by the increased business. You will simply be following photography.
The greatest difficulty in a rush season is in turning out a sufficient number of good prints. A good printing machine is just what you need. And there are two new printing machines on the market that have exceptional advantages.
The 8 x 10 F. & S. Professional Printer No. 1 has many advantages that are essential to quick, accurate printing. It carries nine powerful Mazda or Tungsten Lamps, occupies the minimum of space, and is inexpensive. The price is $25.00.
The New Artura Printer is fitted with a powerful Arc Lamp which gives a very steady light. The construction embodies many improvements which materially add to its convenience. The price of the 11 x 14 printer with Arc Lamp is $75.00 - the 20 x 24 is $100.00. All prices f. o. b. in U. S.
Have your dealer show you these printers and install one in your printing room now.
There are certain important points about developers and the developing of negatives, that every photographer must know if he expects to secure the best results. First of all, there is no developing agent quite so good as Pyro, and certainly none better. Take the word of every manufacturer of dry plates for this statement, against your own judg-ment. The man who makes the plates knows what will develop them best.
A properly balanced Pyro developer used on a good plate will not only give you a negative of the same relative degree of contrast that you secured in your lighting, but it will also give you the proper printing color in the negative to faithfully reproduce your lighting in the print.
In publishing formulas for the use of photographers in all parts of the country, however, it must be borne in mind that there are very often local conditions which make it necessary for the photographer to alter the published formula to obtain the best results.
If the water you use for making up your developing solutions is strong in alkali and you are using the quantity of carbonate of soda recommended in a standard formula, your negatives will probably be too contrast}-. Don't discard the developer. Merely reduce the amount of alkali (carbonate of soda) until the developer is properly balanced to suit the water you are using and your negatives will not block up in the highlights. The excessive amount of alkali causes the Pyro to act too energetically, hence the highlights are over-developed before the delicate gradations in the shadows are properly affected by the Pyro.
The same rule applies to the color of a Pyro developed negative. Once the proper degree of contrast has been secured to show all the delicate steps of gradation, from highest light to deepest shadow, the color of the negative may be varied to give any degree of printing density.
A negative must have some color to have printing quality, and if the result from the standard formula gives you too much color for good printing results on the particular paper you are using, slightly increase the amount of sulphite of soda until the color is properly corrected. On the other hand, if there is too little color in the negative to give prints of the same apparent brilliancy as the negative, reduce the amount of sulphite of soda until your developer is properly balanced to give the desired color.
It must also be remembered that various brands of carbonate of soda vary considerably in developing energy. C. K. Co. Carbonate of Soda contains over 98% pure carbonate. Consequently a formula which does not specify C. K. Co. Carbonate will not require as much C. K. Co. soda as the formula calls for. On the other hand, our formulas which specify C. K. Co. Carbonate, will require a greater amount of other brands of carbonate to produce the same results.
A precaution must also be given regarding developers made up by hydrometer test. C. K. Co. Carbonate and Sulphite of Soda solutions of a given hydrometer test will be stronger than solutions of the same hydrometer test, made from other sodas. The hydrometer gives a correct test of the amount of solid matter in solution, hence an ounce of soda containing 50% carbonate and 50% of some other solid will test the same in a given amount of water as an ounce of C. K. Co. Carbonate of Soda which contains 98% pure carbonate. However, the solution made from the pure soda will have about twice the developing energy of the solution made from the soda which was only 50% pure carbonate.
The standard Pyro formulas which are given with all brands of our plates will undoubtedly give the best results under normal conditions. But it is important that the photographer should know how to adapt these formulas to local conditions, which are often far from normal. Once the proper chemical balance has been secured, you will see the wisdom of our advice: Use Pyro as a developing agent and use Tested Sodas of known strength and purity.