actually i just want to store my silica gel inside dry box, not for protection purpose.. however it can double protection my dslr and lens.. the silica gel i bought come without package, i DIY the small package for my self.

normally fungus difficult to grows on body dslr.. if your worry abt fungus on dslr body, what u have to do is.. test shot using aperture priority at least f/16 and point to the clear sky on the day light.. check the img and find the spider web like.. if u only found the black dot, this is dust not fungus..

hi yesterday i take my d7k and point to the sky and i see a white circle on viewfinder, quicklly take off lens, check it and didnt see anything like fungus there, take my d7k see through viewfinder and i see the white circle again..wht th hell is that?is it fungus or something like dust?

keep the cap and filter ON, by opening and putting them back will give chance for dust to get it. and its okay to leave the lens mounted when store in drybox.

avoid changing lens on the beach too, sand particle in the air (or salt particle from the sea vapour under hot sun, wind blow, reason why ur hair is so salty and dry) is dangerous and very bad of the internal of the camera.

that's fungus. usually we send to shop, because they have the tools to open and clean it. do it ASAP, the fungus will grow and spread. unless u know how to service a lens, then u can do it urself.

if its an USD/SSM/HSM/SWM/MMMMMM lens, better send it back to original manufacturer for service.