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Cold Weather: Use
at 0ºF (-20º C)
© 2006 KenRockwell.com
Nikon 12 - 24
mm f/4, Tokina 12 - 24 mm f/4, Sigma 10 - 20 mm f/4 - 5.6 and Tamron
11 - 18 mm f/4.5 - 5.6.
Click an image to get it from Adorama.
Also try Amazon.
It helps me if you get yours at either one.
I didn't feel like overnighting on Mt. Whitney, so I left these lenses in my freezer at 0º F (-20º C) for 24 hours. I kept them in ziplock bags to avoid condensation when I took them out. In the old days lenses were lubricated with grease that froze solid. This prevented them from focusing. That's why I tried this. The good news is these lenses all work. They were fairly similar. AF speeds were unchanged. The zoom rings got stiffer. Manual focus got very stiff on the Tokina. There isn't much difference between these. They all work fine at 0ºF, at least for the short while I tried them.
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