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Not for sissies : fungus compilation
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PostPosted: Sat Dec 25, 2010 9:32 pm    Post subject: Not for sissies : fungus compilation Reply with quote
A compilation of heavily damaged lenses that will illustrate a page on my site :

























PostPosted: Sat Dec 25, 2010 9:34 pm    Post subject: Reply with quote
It would be nice if you take shoots with them and share information how they impact picture quality.


PostPosted: Sat Dec 25, 2010 9:41 pm    Post subject: Reply with quote
That is one part of the planned experiments on fungus for 2011 : I have 9 Tak 50/1.4 (S-M-C and SMC) with different infections (including a minty one with clean elements that will be used for reference). I also planned an experiment on the speed of the fungus development in clasical condition : leather case type stockage, wet environment. I alrdeay posted pictures with the 83/1.9, 50/1.2 Wink


PostPosted: Sat Dec 25, 2010 10:46 pm    Post subject: Reply with quote
Oh my, that hurts!


PostPosted: Sat Dec 25, 2010 11:20 pm    Post subject: Reply with quote
CarbonR wrote:
That is one part of the planned experiments on fungus for 2011 : I have 9 Tak 50/1.4 (S-M-C and SMC) with different infections (including a minty one with clean elements that will be used for reference). I also planned an experiment on the speed of the fungus development in clasical condition : leather case type stockage, wet environment. I alrdeay posted pictures with the 83/1.9, 50/1.2 Wink


Great plan I look forward your publishing!


PostPosted: Sat Dec 25, 2010 11:26 pm    Post subject: Reply with quote
I forgot there already is a comparison here :
http://kajiwara.weebly.com/bellows-vs-s-m-c-macro-1004.html

Picture of the Bellows if here :
http://kajiwara.weebly.com/champignons-et-autres-joyeuseteacutes.html


PostPosted: Sun Dec 26, 2010 12:01 am    Post subject: Re: Not for sissies : fungus compilation Reply with quote
CarbonR wrote:
A compilation of heavily damaged lenses that will illustrate a page on my site :






Were you able to test the results from this mirror lens? I am also interested if you will be cleaning these, and doing before/after comparisons?


PostPosted: Sun Dec 26, 2010 12:17 am    Post subject: Reply with quote
Seeing that 50/1.2 and the Taks, it almost hurt. Sad

What I'd like to know is, how successful you'll be at removing the fungus, especially with the more severe cases.


PostPosted: Sun Dec 26, 2010 12:27 am    Post subject: Reply with quote
I was like "eh, it happens" until I got to the Pentax 50/1.2. Ouch.


PostPosted: Sun Dec 26, 2010 8:35 am    Post subject: Reply with quote
I took some shots with the 500SP, and it clearly had worst performance than a clean copy of the lens...

I started to clean a Super Takumar 55/1.8 : no problems with it, I just have to reassemble it again. For most cases I will just have to unscrew the two optical groups (front and rear) Smile


PostPosted: Sun Dec 26, 2010 10:25 am    Post subject: Reply with quote
What about coatings? They won't get washed?


PostPosted: Sun Dec 26, 2010 10:42 am    Post subject: Reply with quote
fungus is contagious, so be careful to keep these infected lenses away from your other ones!! (this is the reason why ZEISS refuses to accept them even for service!)


PostPosted: Sun Dec 26, 2010 11:10 am    Post subject: Reply with quote
kds315* wrote:
fungus is contagious, so be careful to keep these infected lenses away from your other ones!! (this is the reason why ZEISS refuses to accept them even for service!)


Not sure I believe that to be honest, I've never experienced that. Suspect Zeiss don't want to be liable for coating damage endured whilst cleaning the fungus. Never know though!


PostPosted: Sun Dec 26, 2010 12:16 pm    Post subject: Reply with quote
The general consensus seems to be that fungus is not contagious. Fungus spores are everywhere, in everything.. it simply needs the right conditions to grow.


PostPosted: Sun Dec 26, 2010 5:08 pm    Post subject: Reply with quote
spleenone wrote:
What about coatings? They won't get washed?


Never had a coating problem yet (the 55/1.8 is not the first lens I clean, only the first one to be totally disassembled).

Andrew G. wrote:
The general consensus seems to be that fungus is not contagious. Fungus spores are everywhere, in everything.. it simply needs the right conditions to grow.


That's it. There is more than 3 years that I have lenses with fungus, kept with other lenses, and I never had any fungal development at my home. You just need to cut at least one of the required conditions : humidity and darkness. I'm used to use silica to be sure that there is not enough humidity, and that works great Smile


PostPosted: Sun Dec 26, 2010 7:46 pm    Post subject: Reply with quote
ManualFocus-G wrote:
kds315* wrote:
fungus is contagious, so be careful to keep these infected lenses away from your other ones!! (this is the reason why ZEISS refuses to accept them even for service!)


Not sure I believe that to be honest, I've never experienced that. Suspect Zeiss don't want to be liable for coating damage endured whilst cleaning the fungus. Never know though!


+1 this is my four years experience too, I store separately fungus infected lenses some of them badly infected, some of them minimal , minimal infected ones not get worst under years.


PostPosted: Mon Dec 27, 2010 8:29 pm    Post subject: Just loving those fungus-monsters !!! Reply with quote
Now I recently got started repairing and cleaning old lenses your fungus-pics make my hands itch.
But indeed, experimenting with them to see just what pics they can make in their fungy situation is also very interesting. Good luck !


PostPosted: Mon Dec 27, 2010 8:55 pm    Post subject: Reply with quote
"Ouch" to the pics.

"Great" to your project.

I don't know for sure if fungus is contagious or not, most experts say it is not really, I still would not store a fungus lens together with my "healthy" ones - just to be on the safe side. Wink


PostPosted: Wed Dec 29, 2010 4:59 am    Post subject: Reply with quote
ManualFocus-G wrote:
kds315* wrote:
fungus is contagious, so be careful to keep these infected lenses away from your other ones!! (this is the reason why ZEISS refuses to accept them even for service!)


Not sure I believe that to be honest, I've never experienced that. Suspect Zeiss don't want to be liable for coating damage endured whilst cleaning the fungus. Never know though!


FYI: manufacturers don't "clean" fungus. They replace infested elements with new ones. Independent camera repair shops may attempt cleaning the glass, but I doubt it's cost-efficient for all but legacy lenses.
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