condens spots - how to avoid it?

[shunkka 0]

heya guys...
anyone had this kind of problem? when jumping in cold/cloudy day... after 5 seconds or so (after exit) a litle spot of condense apears on the lens... any tips/tricks to avoid it?

thanks

-------------------------
"jump, have fun, pull"

[dragon2 2]

Put some anti condens stuff on the lens, I like CatCrap.

ciel bleu,
Saskia

[skymarshal 0]

If the condensation you are experiencing is a small circular floating spot in the middle of the lens, it is more than likely not forming on the outside of the lens but rather on the inside surface of the lens.

Does the spot develop after climb out and then slowly dissipate in freefall as you enter warmer air? If so, it is forming from the temperature and humidity change. It will be particularly bad if doing back to back jumps. You can attempt to keep the lens warm on the way up, but the only true way I've found to eliminate it, is to switch to a single element lens, such as the Royal lenses. Since switching over, I've yet to have a problem.

Hope this helps.

[dragon2 2]

This is with a single element lens (.3), totally forgot to add cat crap:
http://www.12000ft.com/video/10.html

ciel bleu,
Saskia

[skymarshal 0]

Since you are already using the single element lens the only place it can be forming is on the video camera lens itself, or in the space between the single element lens and the camera. If you watch the video closely, you'll notice it only forms after you have been in the cold air for awhile at altitude and it shrinks closer to the ground in the warmer air. At landing it's gone.

You can test this the next time you're on the way to altitude if you sit by the door and it's reasonably cold at altitude. Hold your camera lens in the cold air stream all the way up. Just before you get all the way up, fire up the camera and see if the spot is there, if so, take the lens off and look in between them, I bet it will be on the camera lens itself. I've used Cat Crap in the past, I'd be surprised if it fixes it. Most of the time, condensation on the outside of the lens forms at the edges and works it's way in, not from the center out.

[shunkka 0]

thanks guys
the spot appears after exiting (5 seconds or so).... probably the warm air from the plane and the cold air from the outside made it

some anticiondens drops probably will fix it... but what i do if the spot is not on the lens? if it is inside?

edit: any info where can i buy some anticondes drops?... i cant find in fotostore ... maybe some websites?

thanks again

-------------------------
"jump, have fun, pull"

[HSPScott 0]

put your camera in a heating pad at the begging of the day. Warm it up good. It really keeps the condensation away.

[AlvaroCarvalho 0]

Fogging really sux!

The attached still was taken from the very first time I´ve filmed my wife...I was very upset when I saw the fogging...

Someone told me to sit near a window during the climb and put your lens directly under the sun but I´ve never tried...

Cheers,

Alvaro

Hey...ho...let's go!