#10 in Camera lens bags & cases
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Reddit mentions of USB Lens Warmer, Lens Defogging Heater Condensation Prevention Lens Warmer, Fast Warming for Universal Camera Lens,Telescopes,Coffee Cup,Baby's Bottle
Sentiment score: 1
Reddit mentions: 3
We found 3 Reddit mentions of USB Lens Warmer, Lens Defogging Heater Condensation Prevention Lens Warmer, Fast Warming for Universal Camera Lens,Telescopes,Coffee Cup,Baby's Bottle. Here are the top ones.
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Super fast and continuous warming with fast start up of 5 seconds to heat, and intelligently reach 122°F（50℃）the maximum given the actual needs, while the average temperature stays at 86°F(30℃).Protects the lens of your digital camera or finder scope from freezing by chilling fog and dew, enabling the devices to function properly at night when the temperature drops or places with bad weather.Great idea for warming up water bottle, drink cup, feeding bottle or anything needs keep warm. Based on the USB port design, it is very handy to use because you can connect it either to your power bank or any other power source with a USB port.Can surprisingly be used as a special wrist strap/knee strap to protect them from cold weather or emergency low temperature condition, which the warmth goes through your whole body from where you attach.With adjustable diameter and easy adherence, this dew heater strip fits to most size of telescope, finder scope, digital camera, bottle, cup, human wrist or knee. One heater strip to warm them all!
Specs:
| Weight | 0.0875 pounds |
I used this cheap USB heater from Amazon: https://smile.amazon.com/Warmer-Heater-Universal-Camera-Telescopes/dp/B075JKBN6D/ref=sr_1_3?keywords=usb%2Bdew%2Bheater&qid=1568167826&s=gateway&sr=8-3&th=1
That plus a portable charger USB block thing is perfect for a compact, cheap setup.
I bought an inexpensive USB powered one on amazon for my DSLR: https://www.amazon.ca/gp/product/B075JKBN6D/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1
I've only used it where I had an AC-powered USB power plug but it worked fine. I guess it would be too small for a big telescope though.
Somebody linked one on here last week that works by USB. When I saw this I had to order my own. It arrives tomorrow so I can’t attest to how warm it gets.