I think my speedy35 got darker being stored in my closet. Not a whole lot but is there a way to prevent it? I hate folding it because the crease it causes so I put the open end of the dust bag toward the wall. Thanks
I don't think there is a way to completely stop patina.
Even in dust bags it should/will turn a bit but not as much as when you take it out.
I noticed all of my bags have turned a bit but they still look like new.