Do not put your dslr in a handlebar bag.
The biggest impact are the transitions of temperature .... cold dry to warm moist causes condensation on metalDo you find that your cameras pick up that much moisture in the field from day to day?
But wouldn't that leave your camera COMPLETELY EXPOSED to the elements while riding??
Found an even better case
Standard SLR Chest Carrier
Keep Your Standard SLR Camera At Your Fingertips
Chest Carriers are an excellent way to keep your camera accessible while balancing weight. This newest model gains increased versatility and protection with belt compatible back panels, and side-sling shoulder straps. Quickly access your camera, data cards and fresh batteries from the main compartment. Add capacity and balance to your existing backpack with the Included ChestPort system.