Tried going for a hike this morning, its roughly 8o% humidity outside, the air temp is 70 dg or so. I had my camera bag in the garage, which gets some residual A/C as it passes through the ductwork, not a lot, but it's still cooler and drier in there than it is outside. Before I left I threw my camera bag into the car, turned on the A/C there as well. Got to my destination, took the D810 out, and blam..condensation. Pretty irritating as I wanted to get some photos of a waterfall that was at its peak after a recent rain. I didn't have time to spend waiting for the condensation to clear, so left without getting any photos.
The cars A/C had minimal impact, so it's the fact it was in the cool dry air of my garage that caused this.
Is there any issue with just leaving my gear in a car on a hot summer day as long as it's in the case in order to avoid this?
Not worry about theft...only asking if there will be negative consequences from the leaving my gear in a car on days where its 80-90 dg F to avoid condensation issues.