Any negative that will give a good contact print will give a good enlargement. Enlarging, in fact, is often the making of a picture. New charms, unsuspected in the small original, are brought out by enlargement.

The " Kodak " Post Card Enlarging Cameras make postcard pictures from small negatives. They have the merit of being inexpensive and simple to use. You simply put the negative in one end of the Enlarger, the paper in the other, and then expose it to the light. Full instructions are as follows.

Enlarging On " Velox" Paper And Post Cards

Enlargements can be made upon " Velox "and Bromide paper, but "Velox " will generally be the better, because of the simplicity and certainty of the method of exposing. Moreover, " Velox " dispenses with the dark room required for bromide papers, an advantage which is too obvious to need emphasis.

" Velox " paper and post cards are made in a variety of surfaces, each in two grades-Soft and Vigorous. For enlarging, the Soft grade should be used ; it is better adapted for the majority of amateur's negatives.

The requirements are : a packet of Soft " Velox " post cards or paper, and a packet of glossy Solio printing-out paper, the same size as the negative to be enlarged. Soft " Velox " is made in the following surfaces : Soft Art, Soft Glossy, Special Carbon and Special Portrait.

The exposure necessary for an enlargement on Soft " Velox " in the " Kodak " Post Card Enlargers is exactly the same as for a Solio contact print from the same negative. The time varies of course with the strength of the light.

As the Solio print and the " Velox " enlargement cannot be made from the one negative at the same time, it is necessary to proceed as follows : The Actinometer supplied with the Enlarger is placed in an ordinary printing frame, the negative in another. Each is covered with a piece of Solio paper, and the two frames are exposed to daylight together, for exactly the same time. When the print under the negative is dark enough for toning, the Actinometer print will show a series of numbered tints, and printing in both cases must be stopped.

Take the Enlarger and thoroughly clean the two pieces of glass which will be found at the smaller end.

Now put the negative with its dull side towards the inside of the Enlarger and in contact with the longer piece of glass. Lay the other piece of glass on the back of the negative and adjust the spring-clips so that they hold the negative and glasses securely without encroaching upon the picture. If the dull side of the negative be outward the enlarged picture will be reversed-the right side of objects will become the left.

Now shut out direct sunlight and take a position at a table as far away as possible standing with your body between the Enlarger and the source of light.

Open the hinged door at the larger end of the Enlarger and slide a Soft " Velox " post card or piece of paper, sensitised side upwards, into the carrier. There is no difficulty in knowing the sensitised side of a post card because the other side carries printed matter. The sensitised side of paper is slightly concave, and will be readily recognised. If you want a clean white margin all round your picture, slide in the orange celluloid mask on top of the post card or paper. The carrier is fitted with adjustable slides which, when opened up to their limit, take the regulation 51/2 x 31/2 in. post card. The carrier can be narrowed to take paper 31/4 in. wide. When paper is used, it is a good plan to back it up with a thin card so that it is held firmly by the slides. Close the door, securing it with the hook, and cover up the unused paper so that light cannot reach it.

Now open the printing frame containing the Actinometer, and move the piece of Solio paper to one side, in readiness for a second impression. Close the frame and expose the Enlarger and the Actinometer to daylight side by side. Do not let the direct sunlight fall on either. Examine the second Actinometer print from time to time, and when it is exactly as dark as the first Actinometer print, that is to say, when the highest number on the first print is visible also on the second, the enlargement will be correctly exposed.

Remove the exposed paper from the enlarger in the safe light of a room with the sunlight excluded, and put it away until you are ready to develop and finish it.

Directions for this part of the process are supplied with the paper.

It is a good plan to mark on the negative the highest Actinometer number that has printed out on the Solio paper, so that whenever you want to make another enlargement you can do so without spending time on a further test exposure.