Originally Posted by john_s
Too dry can dry out leather if there's leather on your cameras, and i've read that it can hasten the drying out of lubricants. I don't know if that applies to all lubricants.
I've heard this too, but subjected my photographic gear to low humidity dry boxes for years anyway...
But I finally caved a few years ago and got a Toyo Living Auto Dry Clean cabinet
from Yodobashi, and don't regret it one bit. Should really have gotten it years ago, but hey, BLTN !!!
If you have considerable $$$ invested in your photographic gear, and also plan on staying on in Tokyo for a few years, I highly recommend jumping in the deep end now and getting a proper dry cabinet. Totally worth it for the peace of mind.