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Attila
Joined: 24 Feb 2007 Posts: 57865 Location: Hungary
Expire: 2025-11-18
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Posted: Wed Oct 07, 2009 6:54 pm Post subject: Fungus test |
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Attila wrote:
Let we make clear case about fungus.
If you have a lens with little fungus and you will not care much to risk it.
Please do following put onto your desk or book shelf without caps don't keep in dark. Let we see how it is growing it should be interesting experience how much we need to worry about that. Nice if you able to put a healthy lens parallel to same place as control.
I did store right lenses with fungus in right humidity 35-45% they didn't grow even with heavily fungus lens in neighbor. I store them in a big dry box.
In my experience same lens get fungus some others don't I have a camera for my bird with lens. Bird lick lens surface and eat on it, lens covered fully with dust and food parts. Two years left still no fungus, environment is frequently humid almost every day around 60%. Lens get normal right in room. _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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CarbonR
Joined: 31 Dec 2008 Posts: 1969 Location: Clermont-Ferrand, France
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Posted: Thu Oct 08, 2009 4:50 pm Post subject: |
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CarbonR wrote:
All my Takumars stand on my desk, front cap off, day light incoming, 2 silica gel packs on the desk and I never had a fungus that developped in them, and the already present fungus didn't develop tehmselves _________________ Cameras : Canon 5D, Pentax K100D, Pentax 6x7, Spotmatic
Lenses : 15mm to 1000mm (24x36)
My websites : [FR & ENG]Takumar - the eyes of the Spotmatic : info about all Takumar lenses // Kogaku - My photo site
I am selling : Takumar lenses and rare Pentax bodies, pm me if you're interested in something [MFLenses feed-back]
Information on Takumar lenses with samples :
Wide angle : Takumar 15/3.5 15mm, Takumar 17/4 17mm, Takumar 18/11 18mm, Takumar 20/4.5 20mm, Takumar 24/3.5 24mm, Takumar 28/3.5 V1 28mm, Takumar 28/3.5 V2 28mm, Takumar 35/2 V1 35mm, Takumar 35/2 V2 35mm, Takumar 35/2.3 35mm, Takumar 35/3.5 35mm, Takumar 35/4 35mm
Standard : Takumar 50/1.4 V1 50mm, Takumar 50/1.4 V2 50mm, Takumar 50/3.5 50mm, Takumar 50/4 50mm, Takumar 55/2 55/1.8 55mm, Takumar 55/2.2 V1 55mm, Takumar 55/2.2 V2 55mm, Takumar 58/2 58mm, Takumar 58/2.4 58mm
Short tele : Takumar 83/1.9 83mm, Takumar 85/1.8 85/1.9 85mm, Takumar 85/1.8 85mm, Takumar 100/2 100mm, Takumar 100/3.5 100mm, Takumar 100/4 100mm, Takumar 105/2.8 V1 105mm, Takumar 105/2.8 V2 105mm, Takumar 120/2.8 120mm
Telephoto : Takumar 135/2.5 V1 135mm, Takumar 135/2.5 V2 135mm, Takumar 135/3.5 V1 135mm, Takumar 135/3.5 V2 135mm, Takumar 150/4 V1 150mm, Takumar 150/4 V2 150mm
Long tele : Takumar 200/3.5 200mm, Takumar 200/4 200mm, Takumar 200/5.6 200mm, Takumar 300/4 V1 300mm, Takumar 300/4 V2 300mm, Takumar 300/4 V3 300mm, Takumar 300/6.3 300mm, Takumar 400/5.6 400mm, Takumar 500/4.5 500mm, Takumar 500/5 500mm, Takumar 1000/8 V1 1000mm, Takumar 1000/8 V2 1000mm
Zoom : Zoom-Takumar 45~125/4 , Zoom-Takumar 70~150/4.5 , Zoom-Takumar 85~210/4.5 , Zoom-Takumar 135~600/6.7
Achromatic : Ultra-Achromatic-Takumar 85/4.5 , Ultra-Achromatic-Takumar 300/5.6 300mm |
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Attila
Joined: 24 Feb 2007 Posts: 57865 Location: Hungary
Expire: 2025-11-18
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Posted: Thu Oct 08, 2009 4:57 pm Post subject: |
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Attila wrote:
CarbonR wrote: |
All my Takumars stand on my desk, front cap off, day light incoming, 2 silica gel packs on the desk and I never had a fungus that developped in them, and the already present fungus didn't develop tehmselves |
Cool ! Very good to know ! How about humidity ? At summer time we have many humid day around 60% or more. _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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CarbonR
Joined: 31 Dec 2008 Posts: 1969 Location: Clermont-Ferrand, France
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Posted: Thu Oct 08, 2009 4:58 pm Post subject: |
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CarbonR wrote:
In Montpellier we have approximatively 300 days of sun per year _________________ Cameras : Canon 5D, Pentax K100D, Pentax 6x7, Spotmatic
Lenses : 15mm to 1000mm (24x36)
My websites : [FR & ENG]Takumar - the eyes of the Spotmatic : info about all Takumar lenses // Kogaku - My photo site
I am selling : Takumar lenses and rare Pentax bodies, pm me if you're interested in something [MFLenses feed-back]
Information on Takumar lenses with samples :
Wide angle : Takumar 15/3.5 15mm, Takumar 17/4 17mm, Takumar 18/11 18mm, Takumar 20/4.5 20mm, Takumar 24/3.5 24mm, Takumar 28/3.5 V1 28mm, Takumar 28/3.5 V2 28mm, Takumar 35/2 V1 35mm, Takumar 35/2 V2 35mm, Takumar 35/2.3 35mm, Takumar 35/3.5 35mm, Takumar 35/4 35mm
Standard : Takumar 50/1.4 V1 50mm, Takumar 50/1.4 V2 50mm, Takumar 50/3.5 50mm, Takumar 50/4 50mm, Takumar 55/2 55/1.8 55mm, Takumar 55/2.2 V1 55mm, Takumar 55/2.2 V2 55mm, Takumar 58/2 58mm, Takumar 58/2.4 58mm
Short tele : Takumar 83/1.9 83mm, Takumar 85/1.8 85/1.9 85mm, Takumar 85/1.8 85mm, Takumar 100/2 100mm, Takumar 100/3.5 100mm, Takumar 100/4 100mm, Takumar 105/2.8 V1 105mm, Takumar 105/2.8 V2 105mm, Takumar 120/2.8 120mm
Telephoto : Takumar 135/2.5 V1 135mm, Takumar 135/2.5 V2 135mm, Takumar 135/3.5 V1 135mm, Takumar 135/3.5 V2 135mm, Takumar 150/4 V1 150mm, Takumar 150/4 V2 150mm
Long tele : Takumar 200/3.5 200mm, Takumar 200/4 200mm, Takumar 200/5.6 200mm, Takumar 300/4 V1 300mm, Takumar 300/4 V2 300mm, Takumar 300/4 V3 300mm, Takumar 300/6.3 300mm, Takumar 400/5.6 400mm, Takumar 500/4.5 500mm, Takumar 500/5 500mm, Takumar 1000/8 V1 1000mm, Takumar 1000/8 V2 1000mm
Zoom : Zoom-Takumar 45~125/4 , Zoom-Takumar 70~150/4.5 , Zoom-Takumar 85~210/4.5 , Zoom-Takumar 135~600/6.7
Achromatic : Ultra-Achromatic-Takumar 85/4.5 , Ultra-Achromatic-Takumar 300/5.6 300mm |
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Attila
Joined: 24 Feb 2007 Posts: 57865 Location: Hungary
Expire: 2025-11-18
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Posted: Thu Oct 08, 2009 5:02 pm Post subject: |
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Attila wrote:
CarbonR wrote: |
In Montpellier we have approximatively 300 days of sun per year |
So your experience is not too relevant. _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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LucisPictor
Joined: 26 Feb 2007 Posts: 17633 Location: Oberhessen, Germany / Maidstone ('95-'96)
Expire: 2013-12-03
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Posted: Thu Oct 08, 2009 6:13 pm Post subject: |
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LucisPictor wrote:
In our area, we have more than 60% often more then 70% and regularly more then 80% r.h. outside, really!
Inside my study, the average rel. humidity is at about 50 to 60%, depending on the season. In winter it's lower because of the heating.
In my cabinet I have a humidity control device but this also often cannot achieve to push the humidtiy under 60% because it's too humid in my office.
But none of my lenses has ever developed fungus!
I have got some lenses that I got with a tiny fungus infection. These lenses I have stored in plastic boxes with silical packs. It did not grow.
Actually, I believe that an ongoing change of humidity from high to low with the possibility of condensation is much worse than a constant humidity of 60%, even though this is regarded as "too high".
If you store lenses in surrounding of 90% rel. hum. you surely will get some mould and later fungus.
Fungus spawn are everywhere! Perhaps apart from the desert. That means that we do not need to care about lens-to-lens infection too much.
Almost every lens carries fungus spawn already. _________________ 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 Thu Oct 29, 2009 7:32 am; edited 1 time in total |
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Attila
Joined: 24 Feb 2007 Posts: 57865 Location: Hungary
Expire: 2025-11-18
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Posted: Thu Oct 08, 2009 6:22 pm Post subject: |
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Attila wrote:
Quote: |
Fungus spawn are everywhere! Perhaps apart from the desert. That means that we do not need to care about lens-to-lens infection too much. |
Important to know! So many people worry about that, without reason. _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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Excalibur
Joined: 19 Jul 2009 Posts: 5017 Location: UK
Expire: 2014-04-21
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Posted: Wed Oct 28, 2009 7:42 am Post subject: |
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Excalibur wrote:
Attila wrote: |
Quote: |
Fungus spawn are everywhere! Perhaps apart from the desert. That means that we do not need to care about lens-to-lens infection too much. |
Important to know! So many people worry about that, without reason. |
Fungi and yeasts can effect humans too...I've got a rash and annular lesions on some of my lenses, but no pustules yet...... _________________ Canon A1, AV1, T70 & T90, EOS 300 and EOS300v, Chinon CE and CP-7M. Contax 139, Fuji STX-2, Konica Autoreflex TC, FS-1, FT-1, Minolta X-700, X-300, XD-11, SRT101b, Nikon EM, FM, F4, F90X, Olympus OM2, Pentax S3, Spotmatic, Pentax ME super, Praktica TL 5B, & BC1, , Ricoh KR10super, Yashica T5D, Bronica Etrs, Mamiya RB67 pro AND drum roll:- a Sony Nex 3
.........past gear Tele Rolleiflex and Rollei SL66.
Many lenses from good to excellent. |
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martinsmith99
Joined: 31 Aug 2008 Posts: 6950 Location: S Glos, UK
Expire: 2013-11-18
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Posted: Wed Oct 28, 2009 8:34 am Post subject: |
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martinsmith99 wrote:
I live in a damp old cottage on farmland in the UK. Humidity is shockingly high, so I have 4 dehumidifiers running constantly. My lenses are stored in a clear plastic box with lens caps off and 2 rechargeable gel packs.
Prevention is better than cure. _________________ Casual attendance these days |
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Anu
Joined: 14 Apr 2009 Posts: 879
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Posted: Wed Oct 28, 2009 8:36 am Post subject: |
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Anu wrote:
I think that people worry way too much about fungus. In my uneducated opinion, if the lens has no pre-existing fungus, it won't develope fungus unless you store your lenses very badly (in a black plastic bag inside a damp garage or so ). If in your home you have closets or drawers you barely ever open and which you never clean and they are not occupied by fungus, why would fungus appear on a lens? |
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Attila
Joined: 24 Feb 2007 Posts: 57865 Location: Hungary
Expire: 2025-11-18
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Posted: Wed Oct 28, 2009 12:11 pm Post subject: |
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Attila wrote:
martinsmith99 wrote: |
I live in a damp old cottage on farmland in the UK. Humidity is shockingly high, so I have 4 dehumidifiers running constantly. My lenses are stored in a clear plastic box with lens caps off and 2 rechargeable gel packs.
Prevention is better than cure. |
Exactly!! _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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Attila
Joined: 24 Feb 2007 Posts: 57865 Location: Hungary
Expire: 2025-11-18
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Posted: Wed Oct 28, 2009 12:13 pm Post subject: |
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Attila wrote:
Anu wrote: |
I think that people worry way too much about fungus. In my uneducated opinion, if the lens has no pre-existing fungus, it won't develope fungus unless you store your lenses very badly (in a black plastic bag inside a damp garage or so ). If in your home you have closets or drawers you barely ever open and which you never clean and they are not occupied by fungus, why would fungus appear on a lens? |
I believe it too, people has no idea what fungus and scratches means really. They reject beautiful lenses , just because small scratch or tiny spot of fungus there, big mistake. _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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mo
Joined: 27 Aug 2009 Posts: 8979 Location: Australia
Expire: 2016-07-30
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Posted: Wed Oct 28, 2009 9:19 pm Post subject: |
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mo wrote:
Quote: |
I believe it too, people has no idea what fungus and scratches means really. They reject beautiful lenses , just because small scratch or tiny spot of fungus there, big mistake. |
leaves them for us Attila who are willing to take a chance.... _________________ Moira, Moderator
Fuji XE-1,Pentax K-01,Panasonic G1,Panasonic G5,Pentax MX
Ricoh Singlex TLS,KR-5,KR-5Super,XR-10
Lenses
Auto Rikenon's 55/1.4, 1.8, 2.8... 50/1.7 Takumar 2/58 Preset Takumar 2.8/105 Auto Takumar 2.2/55, 3.5/35 Super Takumar 1.8/55...Macro Takumar F4/50... CZJ Biotar ALU M42 2/58 CZJ Tessar ALU M42 2.8/50
CZJ DDR Flektogon Zebra M42 2.8/35 CZJ Pancolar M42 2/50 CZJ Pancolar Exakta 2/50
Auto Mamiya/Sekor 1.8/55 ...Auto Mamiya/Sekor 2/50 Auto Mamiya/Sekor 2.8/50 Auto Mamiya/Sekor 200/3.5 Tamron SP500/8 Tamron SP350/5.6 Tamron SP90/2.5
Primoplan 1.9/58 Primagon 4.5/35 Telemegor 5.5/150 Angenieux 3.5/28 Angenieux 3,5/135 Y 2
Canon FL 58/1.2,Canon FL85/1.8,Canon FL 100/3.5,Canon SSC 2.8/100 ,Konica AR 100/2.8, Nikkor P 105/2.5
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