gekopaca
French photographer
The green boxes mean the contents are usually better lubricated due to the reflective properties of the box outer so the lenses don't haze from fungus and stuff. The black boxes also push your rangefinder patch out of alignment as they have a higher mass than surrounding air (and green boxes) so the gravitational pull on your RF over time in storage means a CLA is necessary upon removal from storage.
Ooooooooh yeaAAAH !!!!