Anyone know of a way to get rid of and keep out condensation from the flash to pass lenses without getting new ones?

 

heat it up

pull them apart carefully

clean off the old seal and you could plug that hole

then clean them and apply new sealant and close them up.

thats what i would do.

 

I'll give that a shot, thanks

 

The FTPs have a little rubber vent in them to allow condensation to dissipate. Make sure you don't block that, because unless you re-seal the halves of the lens in a 0 humidity environment, you'll just be trapping moisture in it again.

 

drill a small hole into the bottom of the lense. works just fine.

 

plus 1

 

It is nearly impossible to "keep out condensation", since the lenses are ventilated, as DD has pointed out, through a little rubber vent at the bottom of the lens. So, air can freely enter and exit the inside of the lens. When warm humid air enters the lenses and then the ambient temp drops dramatically, the moisture in the warm air inside the lens can condense on the inside of the lenses. However, as the temp rises again the moisture will evaporate into the air clearing the condensation from the lens.

As DD stated, the only way to permanently solve the problem would be to completely dry out the lenses and seal them in a moisture-free environment. I "solved" the problem on one car by painting them the same color as the car. Of course, that solves one problem and results in another--they are useless. Looked kind of cool, though.

 

My FTP lense had the tiny vent hole plugged with undercoating or grease or something. Before you pull them apart, just check the vent hole is clear with a tiny nail. Once the air can flow easily, the moisture shouldn't build up.

 

I had an FTP once that got bumped in a parking lot nudge. It looked fine, but the seal between the two halves was cracked in spots. Even though the rubber vent was not blocked, I think so much rainwater and other moisture got inside through the cracked seams, it was always fogged. Maybe that's what's going on with the OP's FTP. In that case, separating the halves and resealing it may be necessary, though checking the function of the vent is a good first step.