TY - JOUR
AU1 - Allen, D. E.
AU2 - Dowling, J. P.
AB - 0 Journal of Microscopy, Vol. 117, Pt 2, November 1979, p. 317. Dear Sirs, We read with interest a recent paper in the Journal of Microscopy describing an image reversal process for electron microscope film (C. R. Brandt and W. Davis, 1978, An image reversal process for electron microscope film. J. Microsc. 113, 145). We have used for some time a similar process to produce 35 mm transparencies of electron microscopy specimens for presentation at clinical seminars. For this purpose the direct production of positive transparencies from the 35 mm film offers a number of advantages. Slides are a more convenient form of presentation than prints and by using the reversal process slides can be ready for projection within 1 h after exposure in the microscope. In addition, the process offers considerable economy over negative/positive procedures and the slides are readily stored to provide permanent records. We can confirm the comments of Brandt and Davis that the method produces excellent results. Transparencies produced in this manner have very fine grain and contain at least as much detail as a conventional print. A possible limitation of the process is that the density of the transparency is controlled by the exposure 
TI - Letter to the Editors
JF - Journal of Microscopy
DO - 10.1111/j.1365-2818.1979.tb01189.x
DA - 1979-11-01
UR - https://www.deepdyve.com/lp/wiley/letter-to-the-editors-nUzuD0V0HA
SP - 317
EP - 317
VL - 117
IS - 2
DP - DeepDyve
ER -