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Archive 2013hey guys, is this fungus?
p.1 #1hey guys, is this fungus?
I have this lens for sale and now I'm not sure what to do... I'd hate to pollute someone's bag with fungi 
I just noticed this today as I was giving the lens its last clean, it is definitely on the front element but doesn't go away no matter how much I clean. It's pretty much 99% invisible from every angle except from this one, so I managed to take a couple of snaps:
this is how the lens performs stopped down and wide open
what do you reckon?
I just noticed this today as I was giving the lens its last clean, it is definitely on the front element but doesn't go away no matter how much I clean. It's pretty much 99% invisible from every angle except from this one, so I managed to take a couple of snaps:
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| http://spyro-p.smugmug.com/Other/zuiko-85/i-k8kFBbf/0/XL/DSCF4094-XL.jpg | ||
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| http://spyro-p.smugmug.com/Other/zuiko-85/i-ZK6F48C/0/X2/DSCF4092-X2.jpg | ||
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this is how the lens performs stopped down and wide open
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| http://spyro-p.smugmug.com/Other/zuiko-85/i-Jf2kdkF/0/X2/_MG_7940-X2.jpg | ||
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| http://spyro-p.smugmug.com/Other/zuiko-85/i-4wzncDz/0/X2/_MG_7939-X2.jpg | ||
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what do you reckon?
Mar 20, 2013 at 03:04 AM
p.1 #2hey guys, is this fungus?
I'm guessing: yes
isn't it an urban legend that they pass on fungi to other lenses? The spores of fungi is everywhere, all the time and it's the conditions that need to be correct for them to infect coating, no?
isn't it an urban legend that they pass on fungi to other lenses? The spores of fungi is everywhere, all the time and it's the conditions that need to be correct for them to infect coating, no?
Mar 20, 2013 at 03:26 AM
p.1 #3hey guys, is this fungus?
I don't think all fungi are alike, but I am not sure if you are right.
It looks like fungus to me too, and is probably on the inside of the front element. Normally it comes off when cleaned.
It looks like fungus to me too, and is probably on the inside of the front element. Normally it comes off when cleaned.
Mar 20, 2013 at 03:29 AM
p.1 #4hey guys, is this fungus?
Can't say for sure but it looks like the dust/fungus is on the front element.
Should be easy to clean, if you have a heavy massive rubber piece of the inner ring size, to unscrew the ring. Cannot find it at the moment but I bought a set of those once through the site of mflenses.com. May be there are other tricks to open it up. Otherwise have it cleaned.
It is a good lens, that Zuiko.
Michiel
Should be easy to clean, if you have a heavy massive rubber piece of the inner ring size, to unscrew the ring. Cannot find it at the moment but I bought a set of those once through the site of mflenses.com. May be there are other tricks to open it up. Otherwise have it cleaned.
It is a good lens, that Zuiko.
Michiel
Mar 20, 2013 at 03:33 AM
p.1 #6hey guys, is this fungus?
Righto, I've cancelled the ebay auction.
I think the lens is worth a bit of TLC as it produces good results.
I'll take it to my local repair guy and see if he has time to give it a clean, otherwise I'll have a go at it myself with the tool sculptormic suggested.
Thank you all
I think the lens is worth a bit of TLC as it produces good results.
I'll take it to my local repair guy and see if he has time to give it a clean, otherwise I'll have a go at it myself with the tool sculptormic suggested.
Thank you all
Mar 20, 2013 at 04:37 AM
p.1 #7hey guys, is this fungus?
Looks like fungus on the back of the frontlens.
I agree with the others: Look like it should be easy to clean away. I suppose it could be without coating damage.
At the moment I have found one lens fungus: Aspergillus Niger - this sort of fungus loves it dry! And it is very common - it is the one that could be found on old fruit and vegtables.
Would like to know the other types of lens fungus too, need a biologist with fungi knowledge.
Edited on Jun 29, 2013 at 04:22 PM · View previous versions
I agree with the others: Look like it should be easy to clean away. I suppose it could be without coating damage.
At the moment I have found one lens fungus: Aspergillus Niger - this sort of fungus loves it dry! And it is very common - it is the one that could be found on old fruit and vegtables.
Would like to know the other types of lens fungus too, need a biologist with fungi knowledge.
Edited on Jun 29, 2013 at 04:22 PM · View previous versions
Mar 20, 2013 at 05:09 AM
p.1 #8hey guys, is this fungus?
sculptormic wrote:
Can't say for sure but it looks like the dust/fungus is on the front element.
Should be easy to clean, if you have a heavy massive rubber piece of the inner ring size, to unscrew the ring. Cannot find it at the moment but I bought a set of those once through the site of mflenses.com. May be there are other tricks to open it up. Otherwise have it cleaned.
It is a good lens, that Zuiko.
Michiel
Once you get the front ring off, chances are that you will need something like this to get the element out:
http://www.micro-tools.de/en/Shutter-Spanner-Wrenches/Spanner-Wrench-Slotted-Imported.html?listtype=search&searchparam=spanner
Can't say for sure but it looks like the dust/fungus is on the front element.
Should be easy to clean, if you have a heavy massive rubber piece of the inner ring size, to unscrew the ring. Cannot find it at the moment but I bought a set of those once through the site of mflenses.com. May be there are other tricks to open it up. Otherwise have it cleaned.
It is a good lens, that Zuiko.
Michiel
Once you get the front ring off, chances are that you will need something like this to get the element out:
http://www.micro-tools.de/en/Shutter-Spanner-Wrenches/Spanner-Wrench-Slotted-Imported.html?listtype=search&searchparam=spanner
Mar 20, 2013 at 07:45 AM
p.1 #9hey guys, is this fungus?
Not sure but I don't think there is under the front ring another ring with the wholes in front of the front lens.
But you might also need a little sucker, if the lens doesn't fall out by itself. (On a soft piece of cloth, of course)
But you might also need a little sucker, if the lens doesn't fall out by itself. (On a soft piece of cloth, of course
)Mar 20, 2013 at 08:06 AM
p.1 #10hey guys, is this fungus?
Zeiss recommends to polish the fungus off with cigarette ash. If you're not a smoker, it's time to start
Mar 20, 2013 at 08:24 AM
p.1 #13hey guys, is this fungus?
edwardkaraa wrote:
Zeiss recommends to polish the fungus off with cigarette ash. If you're not a smoker, it's time to start
Done that - without positive result on a FD 300mm f/2.8L lens. The "permanent" fungus etching was permanent.
But I guess the fungus on Spyro P.´s lens could easily cleaned away with alcohol / fungus cleaner / or other liquid cleaner. Probably even with dry cleaning - but I would suggest a wet cleaning.
Zeiss recommends to polish the fungus off with cigarette ash. If you're not a smoker, it's time to start
Done that - without positive result on a FD 300mm f/2.8L lens. The "permanent" fungus etching was permanent.
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| http://www.4photos.de/camera-diy/Fungus-Canon-300-2.8-.jpg | ||
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But I guess the fungus on Spyro P.´s lens could easily cleaned away with alcohol / fungus cleaner / or other liquid cleaner. Probably even with dry cleaning - but I would suggest a wet cleaning.
Mar 22, 2013 at 01:59 PM
