Do not forget that it is necessary to have sun pares hard to fix the visor (the hard part with velcro). A fog is created by definition, given that we will insert our hands and that the cover is tight because condensation occurs. Try this with the semi-open zipper is down.
There are some habits to take to the lens adjustment, and be careful that there is not the need for flash.
In manual mode the passages are sometimes necessary.
No manual so a little reflection is needed. Zipper down, visor up and after no problem.
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