checking of fungus

[Namer]

can anyone tell me how to check a lens if its fungus free

 

[Artosoft]

Look into the lens elements. Pointing to light maybe help.
If you find something like spider web inside, that's fungus.

Regards,
Arto.

 

[Stress]

The best is to use a led torch light and shine it into the lens and you can see very clearly. Always bring alone a small led torch for inspection of lens

 

[antitrust]

actually, a quick and fast rule when buying 2nd hand lenses is that, when you point at a light source, it should be TOTALLY clear. even little spots could be fungi spores.

 

[Namer]

thanks folks