You might also want to look unto Black Diamond gloves line-up. The Power Stretch might be a good candidate for your range of temperatures.
One key question though is whether you expect strong winds/rain on a regular basis or not.
- for wind, I woud look into gore wind stopper options (Black Diamond has such gloves as well),
- for rain, a Goretex XCR/eVent lining is the only really waterproof option, but those gloves typically get too bulky for easy camera operation.
Regards,
Bernard