Marion and Co., compiler · London : Marion and Co. · leaf 177
the centre, whilst the sides are of a ruby colour so that no actinic light passes. The ruby colour is gently shaded off, so that great soft- ness is produced in the vignette. The vignetting-glass takes precisely the same position that the cardboard with the oval opening did. One of the best… … side so as to produce the same effect that the pinching up of the cardboard at the edge did. Marion's new vignetting-frame which we here illus- trate is an extremely useful piece of apparatus. It will be seen that besides the ordinary frame with a folding back, there is a space for slipping in a…
