Name: Anne Summerville, SC (Zone 8a) Only dead fish go with the flow!
In subfreezing temperatures the display might be a problem if you're out for very long - hadn't thought of that - I was thinking more along the lines of the gears in the auto-focus.
As to the display, it wouldn't be a bad idea to find out the freezing temperature of the liquid used.
Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so.
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