Lens fog (Page 2): I was on a river cruise on the Amazon in Peru a couple of years ago. The ship rooms were all well air-conditioned, but the hallways were at Amazon-ambient...

donb17

I was on a river cruise on the Amazon in Peru a couple of years ago. The ship rooms were all well air-conditioned, but the hallways were at Amazon-ambient temperature and humidity. The ship's crew advised us to leave our cameras (including lens) on a table in the hall (at ambient t/h) provided for the purpose when we went to bed in the evening, so the lens wouldn't fog up when we went for our morning rides up the side streams. I didn't do that the first morning, and it took 10-15 minutes for the lens to de-fog after leaving the room. After that, I did as the crew recommended and had no fog problems.

boberic Loc: Quiet Corner, Connecticut. Ex long Islander

jerryc41 wrote:

That's physics for you. Unless you use the plastic-bag-and-wait procedure, you'll get that fog. I wonder if scuba diver's anti-fog liquid would help. The alternative for scuba divers is spit.

The spit thing has more to do with surface tension than dew point. Moisture on a lens happens whEn the change is from cool to warm, A face mask goes from warm to cool.

therwol Loc: USA

Great if only your lens fogs. I went to Disneyland in Jan of 2016. It rained a lot most of the time I was there. I only took a Canon compact camera with me and walked around with it in my pocket. The inside of the camera apparently fogged with condensation. The inside of my Seiko (supposedly) waterproof watch also fogged. I saw that immediately. I didn't see the effect on the pictures I took until later (very unsharp). Both eventually dried out in warmer weather. It took a long time (a couple of months) with the watch, and I'm glad it still runs okay.

davidrb Loc: Half way there on the 45th Parallel

kodiac1062 wrote:

Grabbed my camera to take a picture of an Osprey in the back yard. Went outside and the lens fogged up. So much for the shot! I keep the lens in a Think Tank storage travel airline approved carry on. Any suggestions to prevent the fogging? The humidity in Fl is not going away any time soon.

People who carry lots of gear for "on the road shoots" learn to store the gear where it is going to be used, in outdoor air. You take a sealed lens from a cool, dry environment into warm moist air and fog is going to happen. Leave it in the trunk of your car and eliminate the problem.

whitewolfowner

Hsch39 wrote:

I put the camera and lenses on a 50 Watt-115Volt 12"x15" heating pad overnight when in an air-conditioned room and exterior high humidity environment. The 50 Watt heating pad maintains a temperature of about 90ºF.
Never had a problem again with condensation. Used it in Florida, Aruba and Singapore.

Very costly way to go about it for sure.

Hsch39 Loc: Northbrook, Illinois

I don't get it, what is costly about it, buying a $18.00 heating pad to take care of $4000.00 camera equipment?

whitewolfowner wrote:

Very costly way to go about it for sure.

Shoeless_Photographer Loc: Lexington

Hsch39 wrote:

I don't get it, what is costly about it, buying a $18.00 heating pad to take care of $4000.00 camera equipment?

whitewolfowner

Hsch39 wrote:

I don't get it, what is costly about it, buying a $18.00 heating pad to take care of $4000.00 camera equipment?

I guess your electricity is free?

Hsch39 Loc: Northbrook, Illinois

50 watt in 20 hours = 1KWH. The price for 1 KWH including taxes and delivery in the USA is less then 15 cents.

whitewolfowner wrote:

I guess your electricity is free?

whitewolfowner

Hsch39 wrote:

50 watt in 20 hours = 1KWH. The price for 1 KWH including taxes and delivery in the USA is less then 15 cents.

I guess you don't understand what free means, nor the power of cost over time?

Spectre Loc: Bothell, Washington

If you have a UV filter on your lens, you might try this. Take a piece of paraffin, (crayon, candle wax) mark the filter and rub it around with lens cleaning cloth. Try a very small amount.
It also works on bathroom mirrors, goggles and scuba masks.

therwol Loc: USA

Spectre wrote:

If you have a UV filter on your lens, you might try this. Take a piece of paraffin, (crayon, candle wax) mark the filter and rub it around with lens cleaning cloth. Try a very small amount.
It also works on bathroom mirrors, goggles and scuba masks.

Maybe Rain-X, the stuff that repels water from your windshield. I don't know how it might affect your pictures. Also, if the inside of your camera is also collecting condensation, it wouldn't help there. You wouldn't exactly want to coat your sensor with anything.

LFingar Loc: Claverack, NY

Hsch39 wrote:

50 watt in 20 hours = 1KWH. The price for 1 KWH including taxes and delivery in the USA is less then 15 cents.

His system works for him. He is happy. Why argue?

Don Mehl

I had the same problem when we cruised the Panama Canal & missed some great shots. Take the advice and go out on deck early.

whitewolfowner

Spectre wrote:

If you have a UV filter on your lens, you might try this. Take a piece of paraffin, (crayon, candle wax) mark the filter and rub it around with lens cleaning cloth. Try a very small amount.
It also works on bathroom mirrors, goggles and scuba masks.

Sorry, but that is terrible advise. For your information if you don't want a scuba mask to fog, all you have to do is to wipe it thoruoghly with your spit before it ever gets wet. Rinse the spit out and you can dive the whole dive and never have it fog.