Anti-Fog Spray for Ground Glass, Lenses and Eyeglasses

[Alan Klein]

Does anyone use this on their eyeglasses, lenses, and ground glass? How often do you use it? Other comments?

https://www.bhphotovideo.com/c/produ...ender_kit.html

[Alan Klein]

Anyone?

[Drew Wiley]

I once tried the ski-goggle type for my ground glass. It was worthless.

[BrianShaw]

When under the dark cloth it really pays to stop breathing in those conditiions. I've often wodered if a scuba snorkel would help avoid fogging but we don't get those kind of conditions enough to have tried.

[MikeAVC]

no, I never use these products. but in winter due to fog lenses are covered with moisture. so I'm thinking to buy an antifog spray for the winter season.

[Havoc]

We had something that helped very well for glasses. But can't find it anymore. It worked far better than what they sell now at the opticians. Never tried it on lenses however.

[Willie]

Have tried a number of products. Rain-X anti fog and Easy View Anti-fog cloth both work for me about as well. Not great, but OK. The Rain-X lasts while the cloth needs to be used every few days. Have not used on lenses, just ground glass and digital camera rear screens. For lenses I use a heated lens wrap. A Dew Heater used for telescopes.
The idea of a scuba snorkel works well. My Uncle showed me how it works at 30 below(f) temperatures with 8x10. Somewhat unwieldy with a dark cloth in the wind but does keep breath off the ground glass. After you remove it the moisture freezes fast so putting it back in your mouth is cold for the first bit as you work on another image.

[Drew Wiley]

Lenses are off-limits as far as I'm concerned. ... Aaah, this reminds me I better turn on the heater to my big cold light, so there won't be any condensation issue with my neg carrier later this morning. It's been cold and clammy.

[Keith Pitman]

I use Cat Crap on my ground glass and it works very well. It’s available from Amazon and elsewhere. I love recommending it too!

I wouldn’t put anything on my photo lenses. They shouldn’t fog up if you condition them first, i.e., don’t use them until they have been in the cold for a while. If you take them into the cold from a warm house or car, you have a good chance of having them fog up.

[Alan Klein]

Lenses are off-limits as far as I'm concerned. ... Aaah, this reminds me I better turn on the heater to my big cold light, so there won't be any condensation issue with my neg carrier later this morning. It's been cold and clammy.

How about ground glass and coated eyeglasses?