Discussion in 'Tips, tricks and tutorials' started by Bill Fowler, Nov 22, 2018.
What do people do to stop your scope lenses misting up through winter shooting please.
How do you mean ?
Is it the eye piece, ! If you breath near it, or is something else ?
I've been using rifle scopes for over 39 years and ( apart from one Russian built )I've never had one fog up even when used in the Arctic circle .
Don’t breathe on it
Shot at the weekend couldn't tell whether it was glasses or scope but I thought prevention is better.
Rainex…. wipe on wipe off and no misting
Good idea, I've used on cars and it's pretty good.
Is there definitely no residue left on the lens as an expensive scope is a whole different beast to a car windscreen?
Their is a lot of debate about this stuff and its use on optics, especially camera optics, most ppl say NO No No as its actually oil based but the specific anti fog rainex I have used on some pretty high end filters and the coatings haven't degraded.... We did use rainex a lot in car racing at one time but we actually changed over to a VERY mild soap solution as it worked just as well in the end..... some of the lads used shaving foam... it all worked.... as with all things on the internet its buyer beware ;-) but its never been an issue on my coated filters and a bit of shaving foam would work just as well.... don't use the scented stuff though lmao
A leupold scope
Condensation is caused by things being cold being hit by warm air which holds more water than cold air (contrary to the myth that cold air makes pellets sink because it's denser due to moisture content).
When your breath hits a cold lens the water in your breath (which is warm) is forced out and condenses on the surface. Dirt and grease aids condensation, and your finger grease really attracts it.
So the way to keep it to a minimum is to keep the lenses clean. Using a good quality lens brush keeps the big bits away, a puffer can be a better way than rubbing a lens with a soggy tissue in the field, good quality lens wipes at home do the rest, and very occaisionaly a really good quality microfibre cloth for any drip marks... but the latter are very hard to find.
Kept clean they'll mist up a lot less, especially if you learn to breathe away from the scope.