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Astromania 25 cm DC Lens Heater Warmer Dew Heater Strip - Stepless Temperature Regulator for Telescopes Lens Less Than 3.15 inch (80mm) in Diameter and Universal Camera

4.8 (5) Write Review
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$20.97

$ 9 .99 $9.99

In Stock

1.Size:40cm


About this item

  • Widely Applicable: Can be adjusted and used according to the lens size; and is suitable for most telescopes; cameras; and other lenses with an outer diameter of less than 80mm "3.15 inches"
  • DC Lens Warmer: 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
  • Stepless Temperature Regulation: This product is equipped with a stepless temperature regulation controller; by sliding the knob on the controller; you can adjust the temperature according to different needs
  • Quick Use and Removal: which not only allows the defogging belt to fit your lens; but also allows you to quickly disassemble and adjust the length you need
  • DC 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 DC port; Specific Dimensions of DC Female Port: Outside Diameter: 5.5mm and Inside Diameter: 2.1mm


Product Description

1

Astromania Lens warmer protects the lens of your camera or telescope before freezing and fogging. Perfect for taking pictures overnight or morning in somewhere with high humidity.

DETAIL OF ASTROMANIA 25CM DC LENS WARMER

25DC

Astromania 25cm DC Dew Heater Information

Connection DC
Material Neoprene (Diving Suit Material)
Length 25 cm / 9.84 inch
Width 5 cm / 1.97 inch
Maxium diameter 8 cm / 3.15 inch
1
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Long Time Use with Power Bank

It keeps the lens warm so it doesn’t form condensation. Perfect for any nighttime long exposure photography. Effective for keeping dew or frost off of your lenses. It seems to work well even when the outside temperature is quite low.

DC 25cm(3)

Touch Fasteners

Installed by hook and loop touch fasteners, the lens warmer can attach to your equipment quickly and securely.

1

SUITABLE FOR DIFFERENT SCENARIOS

DC 25cm(4)

Dave Allmon
2025-08-29 14:21:34
I recently moved from the desert to the east coast. Humidity went from 7% to 75%. Never had to deal with dew before. This thing works Ok, but the controller is very sloppy, in that it doesn't set to a current level and stay there - it moves around. from 0 to 1.5A, and back erratically. Then, of course, I eventually hooked it up backwards and fried the controller. I ordered 2 more LED dimmers, identical to this one, for $6 each to replace it, and the next one I fry. Live and learn. There's a label on the back showing exactly how to hook it up. I must have accidentally got it right the first time. But still, it should have regulated better out of the box.
Douglas Hemingway
2025-07-28 15:52:04
I've used it for a few months nearly every clear night. I feed it with an ASIAIR and works flawlessly. I don't use the adjustment knob because I can adjust it from ASIAIR. Good value.
KRAM02
2025-07-26 13:33:54
This thing works but it just takes up too much space. The strap itself is thick and difficult to wrap around your lens/scope. The dial for the temperature is very big. The cable length is just way too long for what I do. This was just too annoying to rig to my scope so I sent it back for something else
GVPA1
2025-06-17 16:25:11
Works well and the switch is a nice touch
Prasad
2025-01-24 15:48:46
It works well on my guide scope. Unlike the 400mm dew heater, this has a rubber base. Have used it on about 5 sessions with temperature between 48 to 44F. Works well to keep the dew off.Close to the scope, burnt rubber smell. When I removed the dew heater, it had molded to the shape of the scope end. Also left some liquid residues. Easy to wipe off.For the price, I would expect a better quality. Using rubber is a very bad idea.