LucisPictor
Joined: 26 Feb 2007
Posts: 17633
Location: Oberhessen, Germany / Maidstone ('95-'96)
Expire: 2013-12-03
|
 Posted: Fri Oct 17, 2008 7:57 pm Post subject: Tough treatment... |
 |
|
LucisPictor wrote:
Well, I have never treated a lens like that...
I have got a Kaleinar-5N 2.8/100 which is a fantastic lens with wonderful colours.
Unfortunately it has some fungus inside.
This is what I did to kill it - the fungus, not the lens!
1) I took it apart as far as possible and cleaned the internal lenses, but I could not get inbetween the two front elements.
2) I had a strong UV-lamp shine on the lens for a couple of hours.
3) I put it into a box with some dehumidifying bags inside for several months. The fungus did not come back, but of course the filaments at the front element were still there but had not grown any further.
And now the weird parts follow ...
4) I put into a baking oven for 10 minutes at 80°C to kill the fungus. I have read somewhere that any protein will dissolve when heated to more than 60°C for several minutes. So, I thought destroying the protein chains inside the filaments might kill them. 
> The lens survived and did still work perfectly!
5) I put the lens into a plastic box with a puddle of de-fungus liquid that works with chlorine at the bottom of this box. The lens did not get in contact with the liquid but I wanted the chlorine gases to permeate the lens internals.
> The lens survived and still works perfectly.
The filaments are still there, of course, but I hope that I have killed them now.
This is a shot I took tonight with the Kaleinar on the Fuji S1 pro (M-mode, ISO800):
_________________
Personal forum activity on pause every now and again (due to job obligations)!
Carsten, former Moderator 
Things ON SALE
Carsten = "KAPCTEH" = "Karusutenu" | T-shirt?.........................My photos from Emilia: http://www.schouler.net/emilia/emilia2011.html
My gear: http://retrocameracs.wordpress.com/ausrustung/
Old list: http://forum.mflenses.com/viewtopic.php?t=65 (Not up-to-date, sorry!) | http://www.lucispictor.de | http://www.alensaweek.wordpress.com |
http://www.retrocamera.de
Last edited by LucisPictor on Sun Oct 19, 2008 8:02 am; edited 1 time in total |
|
Jesito
Joined: 24 Aug 2007
Posts: 5745
Location: Olivella, Catalonia, (Spain)
Expire: 2015-01-07
|
| Posted: Sun Oct 19, 2008 4:31 am Post subject: |
|
|
Jesito wrote:
Well done Carsten!.
The results are very promising...
Thanks for sharing!
Jes.
_________________
Jesito, Moderator 
Jesito's backsack:
Zooms Sigma 70-300, Tamron 35-135 and 70-210 short, 70-210 long, 28-70 CF Macro, 35-70, 35-80, Vivitar 70-210 KA, Tamron 70-250.
Fixed Industar-50, , Tamron 24mm, Tamron 135mm, Sands Hunter 135mm, Pancolar 50mm, Volna-3, many Exakta lenses
DSLR SIGMA SD9 & SD14, EOS 5D, Sony A700 and NEXF3, Oly E-330, E-400, E-450, E-1
TLR/6x6/645 YashicaMat, Petri 6x45, Nettar, Franka Solida, Brilliant
SLR Minolta X300, Fuji STX II, Praktica VLC3, Pentax P30t, EXA500, EXA 1A, Spotmatic(2), Chinon CM-4S, Ricoh, Contax, Konica TC-X , Minolta 5000, 7000i, 3Sxi, EOS 500 and CX
Rangefinders Chinon 35EE, Konica C35 auto, Canonet 28, Yashica Lynx, FED-2, Yashica electro 35, Argus C3 & C4, Regula Cita III, Voigtlander Vitoret (many), Welta Welti-I, Kodak Signette 35, Zorki-4, Bessa-R & L, Minolta Weathermatic, olympus XA2
Compact Film Konica C35V, Voigtlander Vitorets, Canon Prima Super 105, Olympus XA2 and XA3
Compact Digital Olympus C-5050, Aiptek Slim 3000, Canon Powershot A540, Nikon 5200, SIGMA DP1s, Polaroid X530, IXUS55, Kodak 6490, Powershot G9 and G10
CSCCanon EOS-M, Samsung NX100 and NX210, Lumix G5, NEX-F3 |
|
Search
Memberlist
Register
Profile
Log in to check your private messages
Log in
