looking dew heater or cheap alternatives?

[Gabriel Perano]

looking for a dew heater or a cheap alternative? just don’t want my lens to keep frosting on the felid. if anyone has any for sale or has any cheaper ideas please comment it. cheers

• This topic was modified 4 years, 5 months ago by Marc Bunyan.

[Marc Bunyan]

I use this on my 73mm, works perfectly.

 

[Gabriel Perano]

hello, thanks for replying, where did you buy this from? because the photo does not link to a site. cheers

• This reply was modified 4 years, 6 months ago by Gabriel Perano.

[Terry Richardson]

You can make one cheap with a ladder of resistors. you can make it the right diameter for the camera/telescope lens. Can run directly from 12 volts or use an arduino to set variable duty cycle to save power. Mine full blast uses about 1.5 amps.

I can show you how it is constructed if you want.

Cheers

Terry

 

[Gabriel Perano]

hello, sounds simple enough and a viable option, I think there are a couple websites covering this, so I should be fine and wont need to be shown but thank you 🙂

[Anonymous]

Hi

As above, you could make them, but there are companies that sell them. I have a couple from astrozap. They are a little bit pricey but are well made and have Velcro and a DC plug already fitted

Cheers

 

[Marc Bunyan]

hi, sorry about that paste – amazon clipboard links  come out weird sometimes.

http://www.amazon.com/dp/B08LGN222F/ref=cm_sw_em_r_mt_dp_6JSPF75FZ02PH228V030?_encoding=UTF8&psc=1

$28 and was delivered in about 5 days.

• This reply was modified 4 years, 6 months ago by Marc Bunyan.
• This reply was modified 4 years, 6 months ago by Marc Bunyan.

[Gabriel Perano]

awesome, cheers

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