BnS claim: "fungus dead and not growing"


kwanhan

New Member
Aug 17, 2009
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Redhill
#1
A claim on a BnS thread:

"glass element condition is good except fungus (dead and not growing) on edges of front glass element which not gonna appear and affect IQ with crop body or even full frame body"


anybody has got any takes on fungus dead and not growing? scientific or otherwise? :bsmilie:


personally, (without googling), i think that fungus spores can be dormant and never truly dead?

i mean fungus its all about having the right conditions for growth

....so fungus is like some sort of zombie apocalypse right?

ANYWAY TO KILL IT? :bsmilie:
 

spree86

Senior Member
Feb 3, 2009
4,774
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Bishan
www.flickr.com
#2
A claim on a BnS thread:

"glass element condition is good except fungus (dead and not growing) on edges of front glass element which not gonna appear and affect IQ with crop body or even full frame body"


anybody has got any takes on fungus dead and not growing? scientific or otherwise? :bsmilie:


personally, (without googling), i think that fungus spores can be dormant and never truly dead?

i mean fungus its all about having the right conditions for growth

....so fungus is like some sort of zombie apocalypse right?

ANYWAY TO KILL IT? :bsmilie:
Dip the lens into alcohol or fungicide?:bsmilie:
 

Sep 17, 2008
3,656
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0
#3
ppl are getting more creative nowadays
 

kwanhan

New Member
Aug 17, 2009
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Redhill
#4
if i were a newbie... i may have bought that lens

when i was still clueless, i bought a nikkor 50 1.4 AIS cheap for $150... only later did I realize there was whitish stuff on the edge of the front element.

passed it to Bro Fatigue to have a look... the lens had been taken apart before and said it was leftover cleaning stains.. didn't affect the IQ though
 

eleveninth

Senior Member
Jan 17, 2006
6,217
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#5
wah.

fungus pronounce dead at .....
 

spree86

Senior Member
Feb 3, 2009
4,774
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Bishan
www.flickr.com
#6
if i were a newbie... i may have bought that lens

when i was still clueless, i bought a nikkor 50 1.4 AIS cheap for $150... only later did I realize there was whitish stuff on the edge of the front element.

passed it to Bro Fatigue to have a look... the lens had been taken apart before and said it was leftover cleaning stains.. didn't affect the IQ though
Hmm fungus removal by the shops costs around $65, so if the buyer is confident enough that the lens coating is not affected actually he might get a pretty good deal.
 

ed9119

Moderator
Staff member
Mar 11, 2002
11,013
37
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Singapore
www.walkeast.com
#8
be kind + nice guys.... seller was honest enough to mention it .... appreciate it...... u have heard enough stories of sellers who will try to pass off an infected lens as dust or cleaning stain to a newbie or just hope buyer dont notice it because of carelessness/ignorance/rushing when transacting

He probably described it wrongly.... or maybe he did not..... it might already be cleaned of fungus with permanent cleaning stains left behind leading to that claim or it might not...... or maybe he was just plain ignorant about the nature of fungal infections if not treated ..... but still honest about it nonetheless

if its priced to your satisfaction, take the chance to meet up and decide for yourself if you are keen.

we should be encouraging honesty, yes?

peace
 

Last edited:

Yutaka Go

Senior Member
May 22, 2010
983
7
18
SG
#9
A claim on a BnS thread:

"glass element condition is good except fungus (dead and not growing) on edges of front glass element which not gonna appear and affect IQ with crop body or even full frame body"


anybody has got any takes on fungus dead and not growing? scientific or otherwise? :bsmilie:


personally, (without googling), i think that fungus spores can be dormant and never truly dead?

i mean fungus its all about having the right conditions for growth

....so fungus is like some sort of zombie apocalypse right?

ANYWAY TO KILL IT? :bsmilie:
Ask seller to produce a death cert for the fungus :bsmilie:
 

geraldkhoo

Senior Member
Jun 15, 2007
2,571
0
36
The Tiny Red Dot
sgstrobist.blogspot.com
#10
maybe the seller does not know much about fungus... and he has not seen the fungus grow while he owned the lens... so he pronounced it dead :bsmilie:

yah... it is good that the seller said that there was fungus. i'd rather have someone honest and declare it (though may not know much about fungus) than one who is out to deceive...
 

kwanhan

New Member
Aug 17, 2009
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Redhill
#12
ok i retract my nasty statements

didn't occur to me that it could have been phrased out of ignorance!
 

fatigue

Senior Member
Sep 26, 2005
2,924
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Blk138 Bedok North Ave3
forums.clubsnap.org
#13
be kind + nice guys.... seller was honest enough to mention it .... appreciate it...... u have heard enough stories of sellers who will try to pass off an infected lens as dust or cleaning stain to a newbie or just hope buyer dont notice it because of carelessness/ignorance/rushing when transacting

He probably described it wrongly.... or maybe he did not..... it might already be cleaned of fungus with permanent cleaning stains left behind leading to that claim or it might not...... or maybe he was just plain ignorant about the nature of fungal infections if not treated ..... but still honest about it nonetheless

if its priced to your satisfaction, take the chance to meet up and decide for yourself if you are keen.

we should be encouraging honesty, yes?

peace
:thumbsup:
 

hongsien

Senior Member
Mar 11, 2002
3,688
0
36
105
Hong Kong
Visit site
#14
A claim on a BnS thread:

"glass element condition is good except fungus (dead and not growing) on edges of front glass element which not gonna appear and affect IQ with crop body or even full frame body"


anybody has got any takes on fungus dead and not growing? scientific or otherwise? :bsmilie:


personally, (without googling), i think that fungus spores can be dormant and never truly dead?

i mean fungus its all about having the right conditions for growth

....so fungus is like some sort of zombie apocalypse right?

ANYWAY TO KILL IT? :bsmilie:
The fungus threads may be killed by strong UV light, I am not sure if leaving it in the sun may kill them. But spores probably not.........quite tough
 

Exposure

New Member
Apr 6, 2008
1,264
0
0
#15
A claim on a BnS thread:

"glass element condition is good except fungus (dead and not growing) on edges of front glass element which not gonna appear and affect IQ with crop body or even full frame body"


anybody has got any takes on fungus dead and not growing? scientific or otherwise? :bsmilie:


personally, (without googling), i think that fungus spores can be dormant and never truly dead?

i mean fungus its all about having the right conditions for growth

....so fungus is like some sort of zombie apocalypse right?

ANYWAY TO KILL IT? :bsmilie:
seller used the wrong term, the correct word is not growing, the fungus was actually dried up. When fungus is found present, the lens coating is gone. The only way is to re-coat the lens in the lab which is often expensive.
 

Jun 12, 2008
757
0
0
Jalan Poonpipi
#16
Actually, fungus is almost everywhere. The big difference is that it takes certain conditions for fungus to grow, like high humidity and in the dark. When exposed to sunlight and UV, and low humidity, fungus just cannot grow.

So, if you use your lens often and often enough outdoors, where there is UV light, then, you can be sure that fungus will not grow.
 

#17
Actually, fungus is almost everywhere. The big difference is that it takes certain conditions for fungus to grow, like high humidity and in the dark. When exposed to sunlight and UV, and low humidity, fungus just cannot grow.

So, if you use your lens often and often enough outdoors, where there is UV light, then, you can be sure that fungus will not grow.
My cam is in air-con room for a long time.. Low humidity in air-con room? :dunno:
 

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