Green Photography
Traditional photography, now referred to as analog, uses chemical solutions to change the latent image on film into a printable negative. Hydroquinone is the main active ingredient in black and white film developers. Acetic acid is in stop bath. The ammonium thiosulphate in fixer stabilizes the developed image while washing away excess silver compounds left on the less exposed areas of the film. With all of this chemistry entering our waste water systems, how can traditional chemical photography be considered ‘green’?
In very dilute solutions, the hydroquinone in developer decomposes in minutes. The acetic acid in stop bath is of the same kind found in orange juice or vinegar, just more concentrated. The ammonium thiosulphate and silver compounds in exhausted fixer are a different matter. With use, the silver concentration in fixer increases to the point where the fixer becomes exhausted. The silver can be recovered, refined, and reused. The ammonia thiosulphate is treated in waste water plants to remove excess nitrogen and prevent excessive algae growth in rivers and streams. If ‘analog’ photographers work responsibly, all of these chemicals can be treated and neutralized. Commercial processor technology uses color chemistry to its maximum potential. Modern hazardous waste processing later renders it environmentally safe.
Before digital photography, people kept their cameras longer than they do now. For example, a photographer who bought a Nikon FTn would use the camera for years while building an investment of lenses. New camera models were introduced every five to eight years instead of every year or two as digital cameras are today. Photographers would ‘upgrade’ to a new camera body from time to time, but they usually kept their lenses and older bodies until they wore out. Back then, any Nikon lens worked on any Nikon body. Today, photographers need to watch which lenses work with certain cameras. A Nikkor-P 105 mm f/2.5 lens built in 1968 will not function on a Nikon D200 camera. In fact, older lenses used on newer digital cameras can permanently damage them.
I can’t use my Nikkor-P 105 mm lens on my Fuji S2 Pro digital SLR, but I can use my Nikon AF-D lenses on my Nikon F. Now that’s green!
In very dilute solutions, the hydroquinone in developer decomposes in minutes. The acetic acid in stop bath is of the same kind found in orange juice or vinegar, just more concentrated. The ammonium thiosulphate and silver compounds in exhausted fixer are a different matter. With use, the silver concentration in fixer increases to the point where the fixer becomes exhausted. The silver can be recovered, refined, and reused. The ammonia thiosulphate is treated in waste water plants to remove excess nitrogen and prevent excessive algae growth in rivers and streams. If ‘analog’ photographers work responsibly, all of these chemicals can be treated and neutralized. Commercial processor technology uses color chemistry to its maximum potential. Modern hazardous waste processing later renders it environmentally safe.
Before digital photography, people kept their cameras longer than they do now. For example, a photographer who bought a Nikon FTn would use the camera for years while building an investment of lenses. New camera models were introduced every five to eight years instead of every year or two as digital cameras are today. Photographers would ‘upgrade’ to a new camera body from time to time, but they usually kept their lenses and older bodies until they wore out. Back then, any Nikon lens worked on any Nikon body. Today, photographers need to watch which lenses work with certain cameras. A Nikkor-P 105 mm f/2.5 lens built in 1968 will not function on a Nikon D200 camera. In fact, older lenses used on newer digital cameras can permanently damage them.
I can’t use my Nikkor-P 105 mm lens on my Fuji S2 Pro digital SLR, but I can use my Nikon AF-D lenses on my Nikon F. Now that’s green!