About Apo Sironar S lens

[GPS]

I was looking at my lens today, and found a few of my sironar s lens has like some tiny spot on the glass inside the front element. Is that common? It does appear on more than one of the sironar s lens I have.

They all have spots. That's why they are named Sironar S(pot) lenses... Some even say it stays for Sironar Sweet Spot lenses... Just ask Bob about it... (If you want Sironar lenses without a spot go for the Sironar N(o spot) lenses...)

[Steve Barber]

They all have spots. That's why they are named Sironar S(pot) lenses... Some even say it stays for Sironar Sweet Spot lenses... Just ask Bob about it... (If you want Sironar lenses without a spot go for the Sironar N(o spot) lenses...)

Touche

[Armin Seeholzer]

GPS you made my day;--))))