Lantern-slide making and exhibiting ([pref. 1905])

Page scan 00020 from Lantern-slide making and exhibiting

Record Details:

Title:
Lantern-slide making and exhibiting
Date:
[pref. 1905]
Publisher:
London, Marshall, Brookes & Chalkley
Volume:
Lantern-slide making and exhibiting
Leaf #:
00020
Language:
English
Collection:
Books
Format:
Books
Contributor:
University of California Libraries
Sponsor:
MSN
Coordinator:
Media History Digital Library
Date Added:
July 19, 2022
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CHAPTER III.—The Contact Method. An ordinary printing frame will be Contact all tne apparatus necessary for con- tact printing, but as in using it there is always a possibility of scratching the negative, the expenditure of half-a-crown in the purchase of a lantern-slide printing frame will be a wise investment. The negative is placed behind the springs with its film side against the cloth covered frame. If the hinged flap in the front be lifted and the frame held to the light, the position of the negative can be ad- justed until the most satisfactory composition is se- cured, the springs holding it in any required position. A lantern plate is then taken from the box (the re- mainder of the plates being wrapped up and the lid replaced) placed face downwards on the negative and the flap, or door, closed and fastened. Everything is then ready for exposure. Now this question of exposure is of Exposure and paramount importance; in fact, the its Effect upon secret O f successful slide-making is in the Slide. ,, ,. learning correctly to estimate the ex- posure required with a given negative and plate, coupled, perhaps, with the selection and proper use of a suitable developer. In making slides by con- tact the exposure question is simplified because arti- ficial light of the same strength can be used, thereby securing that all-important factor, uniformity. If we always use the same source of light, keep the print- ing frame at a fixed distance from it, and find by