Dry Box


Status
Not open for further replies.

Halfmoon

Senior Member
Feb 26, 2005
4,590
6
0
Hougang, Singapore.
#1
Hi all

I just got a dry box, and turn it on for 24 hrs... so can I put the lenses in now??

The RH is now 30 too low??? What is the recommended range???

Mine is the Akarui from Cathay.... 40L...

Thank you..
 

Galdor

Senior Member
Jul 5, 2006
9,544
0
0
Planet Gaia
s105.photobucket.com
#2
After you put your lenses in, it wouuldn't be 30% anymore. Let it settle at between 45-55% (recommended range) would be good enough. Anything lower may dry up the lubrication in the lenses and the rubber may crack and if it's too high, fungus may grow.
 

Octarine

Moderator
Staff member
Jan 3, 2008
12,488
26
48
Pasir Ris
#3
Every dry cabinet comes with a manual, right? Reading the manual takes less time than posting a question here and waiting for answers.
In short: recommended RH range for cameras and lenses is 45-55% (also, see your camera manual, there is a chapter about "Environmental Conditions").
Watch the RH reading for the next days, it will fluctuate and start at higher level. Reason is: the dry box must get dry at inside and your camera as well (especially if you put it in with strap on). Don't get nervous, just watch. If RH goes below 45% then adjust the box accordingly (again: see manual). After a couple of days the RH will stabilize, adjust when necessary and leave it there. Once you open the door of course RH will go up. That's normal cause you let in humid air from outside. Don't do anything, within a few hours everything's back to normal.
 

Halfmoon

Senior Member
Feb 26, 2005
4,590
6
0
Hougang, Singapore.
#6
Thank you all for your reply...

I overlooked the instruction manual.... that's why I posted here...

I have placed all my lens inside.. and seems like still got some room... so can get another few lens and body maybe..... heheh..... ;)
 

scorpioh

New Member
Jul 17, 2007
1,973
0
0
Woodlands
#7
Be careful with analog hygrometers: they may not be accurate. Digital ones are usually quite accurate.
 

kelvgoh

New Member
Oct 3, 2006
242
0
0
Woodlands
kelvgoh.multiply.com
#9
From my experience, best RH range is between 40%-60%. Anything lower would be too dry and may cause problems with lubricants and other coatings. Higher than 60% may be too damp and may cause fungus growth.

Kelvin
 

Octarine

Moderator
Staff member
Jan 3, 2008
12,488
26
48
Pasir Ris
#10
Be careful with analog hygrometers: they may not be accurate. Digital ones are usually quite accurate.
The display type is irrelevant. The main question is: is it calibrated or not? Secondly: does it matter if the hygrometer shows 5% more or less as to justify the purchase of a (more expensive) calibrated device?
 

Halfmoon

Senior Member
Feb 26, 2005
4,590
6
0
Hougang, Singapore.
#11
I believe some will actually have 2 hygrometer in the dry cab for insurance...

I got my dry cab to stabilized at 40RH... so hope everything will be fine now...

If the lens have signs of fungus, where can I get it cleaned? Also, how much would it cost???

Thanks..
 

Status
Not open for further replies.
Top Bottom