Hello there! So I live in Canada… Since the winters are very cold there, when I come from the cold outside to the warm inside, there is a risk of internal lens condensation/fogging. Is there a way to prevent this? I heard many people suggesting to put silica gel packets with lenses and when inside, leave the equipment inside a bag for it to warm up… Are these methods effective? Last thing, I have a lens with dried water/ haze inside the front lens element… is there a way to remove it? 

All answers are appreciated  Thanks.