2O2 PICTURING MIRACLES 



correct exposure, has almost no latitude, does not 

 work well with any back or side lighting, shadows 

 come out black and overexposure is flat and not 

 natural in color rendering. All these results may be 

 overcome only by the greatest care in the lighting 

 and correct exposure. In landscapes, if the lighting 

 is not right, either the location of the camera must 

 be changed to get the necessary so-called flat light- 

 ing, the color film giving all the necessary contrast, 

 or the photographer must wait until he can get the 

 light coming from the direction desired possibly on 

 another day. This means often going more than 

 once to procure the desired picture. 



Photography with the Eastman or other standard- 

 ized material is an exact scienceno hit or miss prop- 

 osition as it was once. It takes a given volume of light 

 to make the correct exposure. Measure it in pounds 

 or gallons or candle power or however you may 

 wish; qualify its strength by the time of day, the 

 season of the year; the opening or diaphragm of your 

 lens through which it must flow; the time the shutter 

 is open or other factors, and still, to get the correct 

 exposure the film or plate must receive a certain 

 volume of light. 



Fortunately with the photo electric cells now on 

 the market the strength of the light can be very ac- 

 curately measured and with scaled disks, knowing 



