Originally Posted by AgX
When out in remote areas (hiking, skiing) I often use a Nikon F or F3 with a short 45mm lens (about 1 inch long), which is all similar to a 35-mm rangefinder in size.
I carry it in an Army surplus canteen holder attached to a waist belt. In a backpack I carry the lenses etc. that I think I would need for the day beyond the 45mm.
The challenge is during cold weather (< 10 F) . I have tried keeping it in an inner jacket pocket, but condensation fogged the viewfinder. I use a lithium battery in the F3, and this provides good metering and shutter speeds when exposed to the elements. I guess and bracket more with the F.