foggy scope

[Pbj ak]

what are you guys using to keep your optic from fogging when going from cold to hot or hot to cold (inside to outside)?

I’m using a razor 1-6 now but have had problems with several optics. This is an external problem no issues inside the scope from what I can tell.

 

[JBoyette]

Quit storing in AC 1hr before use.

 

[LeeMajors]

My mom used the old school foam shave cream on the bathroom mirrors

That's what I use on my sunglasses and scopes as well

Not perfect but better than nothing

 

[Pbj ak]

Quit storing in AC 1hr before use.

Sounds good but doesn’t always happen that way. I was hoping for maybe a product I could apply or a home remedy. I had a guy here at work mention something called cat crap and another said a light coat of dawn dish soap, then wipe it off just leaving a thin layer behind. Guess I might give the dawn a try being I have some at home.

 

[Jeff Alan]

Cat crap works pretty good.

 

[JBoyette]

Sounds good but doesn’t always happen that way. I was hoping for maybe a product I could apply or a home remedy. I had a guy here at work mention something called cat crap and another said a light coat of dawn dish soap, then wipe it off just leaving a thin layer behind. Guess I might give the dawn a try being I have some at home.

Not a fan of a "add on" when the coatings on lens is what you did or did not pay for.

 

[Pbj ak]

I hear that, I’ve had this problem with a few different optics that I would consider decent quality (accupoint, accupower, and now a gen 2 razor). Just looking to see if anyone had a remedy. It doesn’t have to be combat ready, this is mostly used for groundhogs, raccoons, and garden pests although I’d like something that doesn’t compromise the optic if possible.

 

[JBoyette]

I hear that, I’ve had this problem with a few different optics that I would consider decent quality (accupoint, accupower, and now a gen 2 razor). Just looking to see if anyone had a remedy. It doesn’t have to be combat ready, this is mostly used for groundhogs, raccoons, and garden pests although I’d like something that doesn’t compromise the optic if possible.

Question, is the fog coming from your breath exhale?

If so its a body mechanics issue that is a complex fix that takes a trained eye to adjust

 

[Pbj ak]

Question, is the fog coming from your breath exhale?

If so its a body mechanics issue that is a complex fix that takes a trained eye to adjust

I don’t think so but to be honest I haven’t really paid attention. I would think not, being I’m usually laid out on the ground to get a nice stable shot off. I will take note the next time I’m out. I’ve got to work this weekend but will definitely have the rifle out Monday and/or Tuesday.

The past couple days it seemed to be worse than normal, we had rain and very high humidity.

 

[Derek8404]

I have a friend that uses Cat Crap on the lens of his duty RMR and says that it works very well. He is a cop in Austin TX, so fogging is a real issue they have to deal with when getting out of an AC’d cruiser in the summer heat and having to immediately get their weapon out.

 

[GymB]

It’s really just a function of the lens being below the current dew point. The more mass in the optic, the longer it takes to warm up. The extra stuff you put on the lens doesn’t stop the condensation, it reduces the surface tension of the condensate so it spreads out flat on the lens rather than balling up. This created diffraction issues, but I have no idea of their magnitude.

With sealed optics this is a minor annoyance, with older optics you’d get condensation on the internal elements, and that really sucked.

Best bet is to leave the optic outside. No place to leave the rifle, get a quick release mount that you trust, pop the optic off the rifle and leave it in the trunk of the car or on the back porch (out of the rain). You could also leave it in the garage or in the gun safe with a golden rod, anything to keep it warm.