Caution with Dew Heaters: Just a heads up about the dangers of no knowing what your doing.. Apparently I used one with to many amps. Really not any instructions came with it but Amazon...

Ronsh Loc: Floresville,Tx.

Just a heads up about the dangers of no knowing what your doing.. Apparently I used one with to many amps. Really not any instructions came with it but Amazon had something about 1 amp.

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ahudina Loc: Browns Point, WA

Ronsh wrote:

Just a heads up about the dangers of no knowing what your doing.. Apparently I used one with to many amps. Really not any instructions came with it but Amazon had something about 1 amp.

I just today ordered one of these from amazon, supposed to be delivered tomorrow. It looks like you used a battery pack similar to what I was going to use, a Rav power pack that I use to charge up my cell phone. The ad said that this type of power pack was what to use. Can you provide any more details on the power source you used? Thanks.

lamiaceae Loc: San Luis Obispo County, CA

Ronsh wrote:

Just a heads up about the dangers of no knowing what your doing.. Apparently I used one with to many amps. Really not any instructions came with it but Amazon had something about 1 amp.

Now if I knew what a "dew heater" was. Somehow I picture a field of orange trees in a frost storm. Smudge pots? No. Yikes, 1 amp is a good amount of current. That is 120 watts @ 120 volts! Say like your regular house AC power in a major city in the USA. Some systems are at 115 volts or as low as 110 volts. Gets a bit complicated as "things" are often rated in RMS electrical power.

So, I'm guessing you overloaded some Li-Ion battery.

lamiaceae Loc: San Luis Obispo County, CA

Ronsh wrote:

Just a heads up about the dangers of no knowing what your doing.. Apparently I used one with to many amps. Really not any instructions came with it but Amazon had something about 1 amp.

[I looked the products up on Amazon.] Yikes, it gets that cold and damp where you live that you need to bake your camera lenses? I might try a chemical heating pack first. Actually, I'm glad I know how to focus manually if need be in weather where my camera's electronics start shutting down. I'd hate to think what you might do about a cold sensor! I once walked into a steamy orchid house and walked right back out as to not ruin my DSLR camera. Water saturated air can easily cause damage to cameras and lenses. People shooting in say snow or rain or damp places must use special techniques and equipment correctly. It is easy where I am, the air stays fairly dry in So. Cal. even when it rains.

jerryc41 Loc: Catskill Mts of NY

Ah, I see what you mean.
https://smile.amazon.com/s?k=dew+heaters&ref=nb_sb_noss_1

I took a course in night sky photography, and all participants had to bring a pack of these single-use warmers. They are warm - not hot.

https://smile.amazon.com/dp/B0028AD6V0/?coliid=I3VPP2MNRL9FHV&colid=397RKZB5HZQZX&ref_=lv_ov_lig_dp_it&th=1

Longshadow Loc: Audubon, PA, United States

Dew usually forms on things that are exposed directly to the sky, not things that are covered. Same with frost.
I'd try a small towel over the camera when not in use, stuff the towel in my shirt when using the camera.
Unless it's chilly and ≈100% humidity. If it's that bad, then a hand warmer would be in order.

Ronsh Loc: Floresville,Tx.

ahudina wrote:

I just today ordered one of these from amazon, supposed to be delivered tomorrow. It looks like you used a battery pack similar to what I was going to use, a Rav power pack that I use to charge up my cell phone. The ad said that this type of power pack was what to use. Can you provide any more details on the power source you used? Thanks.

Got it from Walmart, it was. 2.1 amp you need a 1 amp. Found one at BH

Ronsh Loc: Floresville,Tx.

lamiaceae wrote:

I looked the products up on Amazon. Yikes, it ge... (show quote)

MilkyWay shooting here in South Texas is during the warm months. But we get dew or condensationon my lens . I try the hand warmer thing but the four I was using never got hot

Ronsh Loc: Floresville,Tx.

jerryc41 wrote:

Ah, I see what you mean.
https://smile.amazon.com/s?k=dew+heaters&ref=nb_sb_noss_1

I took a course in night sky photography, and all participants had to bring a pack of these single-use warmers. They are warm - not hot.

https://smile.amazon.com/dp/B0028AD6V0/?coliid=I3VPP2MNRL9FHV&colid=397RKZB5HZQZX&ref_=lv_ov_lig_dp_it&th=1

Jerry I try the warmer trick, the four I used never got warm! So I tried this ,to hot . Just glad i didn’t burn the house down. Cause I would leave in running laying out on the table when done to run the battery all the way down

Ronsh Loc: Floresville,Tx.

Longshadow wrote:

Dew usually forms on things that are exposed directly to the sky, not things that are covered. Same with frost.
I'd try a small towel over the camera when not in use, stuff the towel in my shirt when using the camera.
Unless it's chilly and ≈100% humidity. If it's that bad, then a hand warmer would be in order.

You are right , but I find it hard to take a picture thur a towel! But I understand what your saying. Thanks

Longshadow Loc: Audubon, PA, United States

Ronsh wrote:

You are right , but I find it hard to take a picture thur a towel! But I understand what your saying. Thanks

Ronsh Loc: Floresville,Tx.

Longshadow wrote:

Longshadow, I may set camera up like a time lapse and go to back to bed or so I can stack images! Thanks

Longshadow Loc: Audubon, PA, United States

Ronsh wrote:

Longshadow, I may set camera up like a time lapse and go to back to bed or so I can stack images! Thanks

Slightly different situation.
The heater strip might be better in this case.
(Or tape a small hand warmer to the lens?

)

dhroberts Loc: Boston, MA, USA

Take a lookout this device from Kendrick:

http://www.kendrickastro.com/dew_cameracozy.html

Their dew removers are widely used by amateur astronomers; I have employed them successfully many times. Although I have not used this particular item, their products are in general first rate.

billnikon Loc: Pennsylvania/Ohio/Florida/Maui/Oregon/Vermont

Ronsh wrote:

Just a heads up about the dangers of no knowing what your doing.. Apparently I used one with to many amps. Really not any instructions came with it but Amazon had something about 1 amp.

Barnum Bailey used to sell those. Wonder why he went out of business?
If it was me, I would notify amazon. Or at least write an appropriate review.