Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
10-13-2013, 12:36 PM   #16
Veteran Member
hcarvalhoalves's Avatar

Join Date: Aug 2010
Location: São Paulo, Brazil
Posts: 836
I remember your last topic about preventing fungus.

QuoteQuote:
You definitely don't want to put your lenses inside a ziplock bag, even with silica inside. All you'll get is condensation inside the lenses if the air is 80-90% humidity (not unusual in those places).
Can't say I didn't warned

The risk now that the fungus started growing on the lens is that it will etch the coating after a while.

You might want to do as I said in the last thread: keep the lenses in a well ventilated space, under an incandescent lamp - or better yet, give them an UV-C light bath - before the more radical solution of taking them apart to clean. I've saved a couple used lenses bought on thrift shops with these measures. Avoid keeping it in the dark with silica gel, it does nothing to prevent fungus.

10-13-2013, 09:46 PM   #17
Site Supporter
Deimos's Avatar

Join Date: Oct 2010
Location: Kingdom of Wonder
Posts: 1,707
Original Poster
QuoteOriginally posted by hcarvalhoalves Quote
I remember your last topic about preventing fungus.

Can't say I didn't warned

The risk now that the fungus started growing on the lens is that it will etch the coating after a while.

You might want to do as I said in the last thread: keep the lenses in a well ventilated space, under an incandescent lamp - or better yet, give them an UV-C light bath - before the more radical solution of taking them apart to clean. I've saved a couple used lenses bought on thrift shops with these measures. Avoid keeping it in the dark with silica gel, it does nothing to prevent fungus.
The problem for me is there was no well ventilated space to keep the lenses that was not 95% humidity, I have no AC and it is so wet here. If I had kept them in a ziplock with the silica it would have been better than in my camera bag with silica which allowed the humidity and moisture to penetrate the lenses.

In the ziplock at the moment with ten bags of silica gel (inidicating gel) it seems to be keeping the moisture out. Pretty much the same thing as people have suggested: putting the lenses in a sealed container with some sort of humidity control. Perhaps I can put them under a lamp if that will deliver some UV, I have put them out in the sun already which seemed to help.

I knew there was a risk but didnt realize it would happen in less than two weeks before I could move to an apartment and setup a proper storage solution. I am staying in a cheap guesthouse and there are zero options for storage that dont either put my gear in the super-humid air or allow for easy theft of my items.

Anyways, I will be sending them to get cleaned, it is what it is at this point, with my location and what I have with me there is not much I could have done differently sadly.
10-14-2013, 03:10 PM   #18
Veteran Member
hcarvalhoalves's Avatar

Join Date: Aug 2010
Location: São Paulo, Brazil
Posts: 836
QuoteOriginally posted by Deimos Quote
I knew there was a risk but didnt realize it would happen in less than two weeks before I could move to an apartment and setup a proper storage solution
Yeah, the tropics are killer for lenses, doubly so if you're in the middle of rainforest. It's one of the reasons why I want to upgrade all my equipment to WR.

The most important thing though is that while humidity increases the chances of fungus, it's darkness (more specifically, the lack of UV radiation) that allows them to spread. If you manage to keep the lenses under sunlight, or grab the UV-C lamp I talked about, it will help the most.

Good luck!
10-15-2013, 07:22 AM   #19
Site Supporter
Deimos's Avatar

Join Date: Oct 2010
Location: Kingdom of Wonder
Posts: 1,707
Original Poster
Thanks I am in a nice new hotel for a conference for a few nights. I have ac and just took all lenses out, caps off and have them sitting where they are getting at least bulb light and some cool dryish air.

10-15-2013, 07:58 AM   #20
Veteran Member
alexeyga's Avatar

Join Date: Dec 2008
Location: Montreal, Canada
Posts: 838
QuoteOriginally posted by hcarvalhoalves Quote
It's one of the reasons why I want to upgrade all my equipment to WR.
You might want give that thread a shot before making such claims: Fungus in my DA* 16-50mm & DA* 50-135mm

WR is not the answer, common sense is.
10-17-2013, 11:20 PM   #21
New Member




Join Date: Jan 2013
Location: Leyte
Posts: 8
you can visit LOT Camera Shop. They sell dry cabinet

or you can visit a small camera shop at st. 143 corner 276 ( I bought a dry box here in 2009, still using now)
10-18-2013, 12:59 AM   #22
Site Supporter
Deimos's Avatar

Join Date: Oct 2010
Location: Kingdom of Wonder
Posts: 1,707
Original Poster
QuoteOriginally posted by mjsn Quote
you can visit LOT Camera Shop. They sell dry cabinet

or you can visit a small camera shop at st. 143 corner 276 ( I bought a dry box here in 2009, still using now)
Great! I will def buy a dry box from them. Do you have any experience with lens cleaning there? Otherwise I will ship the lenses to Eric in the US

Thanks!
10-18-2013, 01:18 AM   #23
New Member




Join Date: Jan 2013
Location: Leyte
Posts: 8
as of cleaning lens, I don't have any experience having it cleaned by someone there. I cleaned it by myself . You can also ask the store owner if they do lens cleaning. I think LOT Camera has some trained staff for camera servicing (mostly CanNikon, not sure about Pentax).

10-20-2013, 04:53 AM   #24
Site Supporter
Deimos's Avatar

Join Date: Oct 2010
Location: Kingdom of Wonder
Posts: 1,707
Original Poster
QuoteOriginally posted by mjsn Quote
as of cleaning lens, I don't have any experience having it cleaned by someone there. I cleaned it by myself . You can also ask the store owner if they do lens cleaning. I think LOT Camera has some trained staff for camera servicing (mostly CanNikon, not sure about Pentax).
Which dry box did you buy? Was it any good? I looked at a couple the range from $115-160 for a similar size, digital readout and plugin dehumidifiers. I found a store across from Sorya with a sign saying "camera repair" they claim to clean a lot of lenses, I was thinking about trying them. But still a little wary...
10-20-2013, 05:47 PM   #25
New Member




Join Date: Jan 2013
Location: Leyte
Posts: 8
I bought my dry box in 2009 in that camera shop at st. 143 corner 276.

This is exactly the same dry box. http://76.my/Malaysia/wonderful-dry-box-db-2820-electronic-moisture-absorber...nnieheng@1.jpg

Probably, similar type of this dry box are now available in other camera shops there. Try checking the branch of LOT camera outside Phsar Thmei (eastern part).

Currently, am still using it (5 years already (y) ). I put 2 camera bodies (K30 and K20D, lens unmounted), 2 zoom lenses (DAL 55-300 & A 35-105), 4 prime lenses (FA 50 1.4, M 28, Voigtlander Color Skopar 20mm, & Jupiter 9) and then the reusable dessicant.

I did not buy the dry cabinet with the digital sensor and dehumidifier since its quit big for my needs and not practical for travel.
10-20-2013, 05:53 PM   #26
New Member




Join Date: Jan 2013
Location: Leyte
Posts: 8
I forgot to mentioned the price. I bought the dry box for $25 including the reusable dessicant. Probably the price is higher now.
10-20-2013, 06:03 PM   #27
New Member




Join Date: Jan 2013
Location: Leyte
Posts: 8
you may also ask this Phnom Penh photog group https://www.facebook.com/groups/p3.club/


10-20-2013, 07:51 PM   #28
Site Supporter
Deimos's Avatar

Join Date: Oct 2010
Location: Kingdom of Wonder
Posts: 1,707
Original Poster
QuoteOriginally posted by mjsn Quote
you may also ask this Phnom Penh photog group https://www.facebook.com/groups/p3.club/

Thanks for the info. I saw the small one with the Silica gel but wasnt sure how well it worked. I may just pay the extra to get the nice cabinet as it will mostly stay in my apartment.
10-21-2013, 05:55 AM   #29
Site Supporter
Deimos's Avatar

Join Date: Oct 2010
Location: Kingdom of Wonder
Posts: 1,707
Original Poster
For the record I ended up buying a plugin dry cabinet (30L) with a digital readout and manual controls, brand Hui Tong. I got it from LOT camera on Monivong in Phnom Penh and paid $110.

I have only had it plugged in for an hour or two and it has already brought the humidity down from 80% (!!) to 50%, hopefully it will continue to go down to ~40% which I believe to be pretty optimal. The temperature is ~29 degrees C, hopefully that wont affect much as there isnt much I can do about that.

I must say it feels good to have this level of security, and I wish I had bought it sooner but it did cost more than I expected to pay. That said it seems like a pretty solid piece of gear. I will also try LOT for lens cleaning, even though the lenses dont look nearly as bad as they did when I started this thread. I will start with the 43 and if it comes back well cleaned and functioning as it should I will let them work on the 31/77. I will update this thread with the results
10-22-2013, 01:21 PM   #30
Pentaxian
Jonathan Mac's Avatar

Join Date: Apr 2009
Location: Madrid, Spain
Posts: 3,923
I had no idea these dry boxes even existed.

I wish you luck with your lenses Deimos, I'm very glad to see things aren't so disastrous as you first thought. The photos I've seen you post recently from the FA limiteds have been superb.
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
bag, pentax help
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Fungus? Ms.Information Pentax SLR Lens Discussion 2 09-14-2013 10:09 AM
fungus Lowell Pentax Film SLR Discussion 8 09-04-2013 06:27 PM
Pentax F 35-70 - keep perfect past-fungus or worse without fungus Dr.Gaga Pentax SLR Lens Discussion 2 04-25-2013 05:06 AM
Fungus pbancr Pentax SLR Lens Discussion 3 02-18-2013 03:00 PM
Macro Rainbow fungus??? bluestringer Post Your Photos! 2 12-22-2012 08:10 PM



All times are GMT -7. The time now is 10:00 AM. | See also: NikonForums.com, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top