24 PICTURING MIRACLES 



opening as it revolves, the speed at which it passes 

 the film and the lens opening and also the brightness 

 of the illumination. So if the camera is running very 

 slowly on a slow growing flower the width of the 

 slot, or open part of the shutter, must be very nar- 

 row and the lens diaphragmed down to a small 

 opening. Only a great amount of experience with 

 infinite patience will teach these various steps and 

 the success of the picture must depend greatly on 

 the ability to foresee how it is going to look at all 

 stages of its pictured life. 



The kind of film and color screen used governs the 

 correct color rendering. The red flowers require a 

 much greater color separation than yellow or white 

 ones. Now with panchromatic film and a careful use 

 of Wratten filters it is possible to get a red flower 

 and its white seed pod side by side and obtain the 

 correct color values in each. This, of course, does not 

 mean that the picture would be in its natural color, 

 but in a true color rendering in the black and white 

 tones, and red or yellow flowers would not print 

 black as they do in using the old type kodak film. 



This early work was carried out as a hobby in my 

 Yosemite studio. Only the most cramped space was 

 available the camera on a narrow shelf so it could 

 slide back and forth, the flower in the corner and 

 just room to squeeze in beside the camera to focus 



