Does anyone know the difference, if any, between nitrogen purged versus argon purged binoculars? A quick search on the Internet made it sound as though nitrogren and argon were synonyms.
Thanks,
Lew
Hi Lew,
Both are suitable for purging binoculars and I certainly wouldn't make it a factor in choosing between makes/models. The molecules of Argon gas are larger than those of Nitrogen gas and you could argue this makes it harder for Argon to escape from a sealed unit. This is really hair-splitting though and in practice makes no difference.
Cheers
John
..they glow dfferent colours when charged with electricity.. doesn't help tho I guess..