Home

Please support mflenses.com if you need any graphic related work order it from us, click on above banner to order!
SearchSearch MemberlistMemberlist RegisterRegister ProfileProfile Log in to check your private messagesLog in to check your private messages Log inLog in

Lens Fungus
Post new topic   Reply to topic
Home   Manual Focus Lenses
View previous topic :: View next topic  


PostPosted: Sun Dec 31, 2017 5:34 pm    Post subject: Lens Fungus Reply with quote
Article from a 2011 edition of Amateur Photographer magazine





PostPosted: Tue Jan 02, 2018 11:47 am    Post subject: Reply with quote
"If the fungus has etched the glass, the lens is useless."

?

Is it?


PostPosted: Tue Jan 02, 2018 12:07 pm    Post subject: Reply with quote
Sciolist wrote:
"If the fungus has etched the glass, the lens is useless."

?

Is it?



Yes ... look at the wiki article of glass erosion ...


PostPosted: Mon Jan 08, 2018 8:44 am    Post subject: Reply with quote
Wrong, even an fungus etched lens can creat wonderful imges - with lower contrast.
In case only small parts of the lens surface are etcheed, it is often no big problem. THe more of the surface is defective, the worse.
I still love and use my Fd 300mm f/2.8L with fungus etched lens.


PostPosted: Mon Jan 08, 2018 10:41 am    Post subject: Reply with quote
When the etching is severe the lens is useless, this is an element from a Rokkor 135 / 3.5 that was so bad any picture taken through it was pretty much indistinguishable. This is after I'd removed the fungus, this is just the etching.

Post new topic   Reply to topic
Home   Manual Focus Lenses
Page 1 of 1