Lens Warmer/Dew Heater Band for astrophotography (With Controller) & Dew Shield

Hi friends,

The Dew Heater finally comes!

Use it to prevent our camera lens from fogging up, Keep our lens dry. 

Option One- Lens Warmer 

Let me introduce this heater from 3 aspects:

The material:

This Dew Heater main fabric is made of Neoprene. It's different from general cloth. 

More introduction about this fabric:

Neoprene is water-resistant, exhibits good chemical stability, and maintains flexibility when subject to a wide range of temperatures. ... Given its incredible durability, neoprene is used in the creation of laptop sleeves, orthopedic braces, swimwear, wetsuits, camera bags..etc.

After comparing it with other Dew bands, we found such material is good at keeping the heat inside, that's to say, it will be more power-efficient for us. 

The Power

High: 7.5W

Medium: 3.75W

Low: 1.85W

Compatible with most power banks, 5V.

You can power it with your general power bank with a 5V output, USB-A connector.

Temperature Control

It has 3 levels of output

High Temp range:        61°C-75°C  /  141.8°F-167° F

Medium Temp range:  50°C-60°C  /  122° F-140 ° F

Low Temp range:         40°C-49°C  /  104° F-120 ° F

Testing with a Power Bank (output: 5V, 2A) at 24°C-25°C / 75.2° F-77° F

Do hope you like it, if not？ Just tell us what you want, let's do it for you.

Package includes:  Dew heater band+ control cable 

How to Use it?

1) This lens warmer can work with the main cable directly. If you do not connect the control cable to the main cable, you can directly use the warmer.

Wrap the warmer to the lens and charge this cable with the power bank then it will work at the high-temperature range from 61°C-75°C

2) Or you can connect the control cable to the main cable and use the control cable to set the temperature range you want.

And one more thing, 

We heard that many of you want something like heater pads to sit on, or other such heating systems for Astro, just tell us your need, we will design for you.

 Cheers!

John

18/11/2020

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Specification:

Power supply: 5V

Connection: USB-A

Material: Neoprene (Diving Suit Material)

Length: 42.5 cm / 16.73 inch

Width:   3.4 cm / 1.33 inch

Heating diameter:  9 cm / 3.54 inch

Maxium diameter: 13.5 cm / 5.31 inch

USB Power cable length: 153 cm / 60.23 inch

Temperature regulator cable length: 166 cm / 60.35 inch

Heating range: 40° C-75°C / 104° F-167° F

1.  Suitable to all kinds of lenses

2.  Prevents dew buildup on telescopes

3.  USB charging cable ensures easy connection to a power source

4.  The adhesive strap fastener makes it easy to be attached or removed

5.  Made from diving suit material, keep the heater warm for a long time.

Option Two-Dew Shield

This is a reliable Dew Shield for telescopes! It will keep the dew away from your telescope and ensure a clear observation for the whole night.

• Durable Material - Made of high-quality black ABA material, it’s super durable than other shields. It fits snugly and it can be fastened by the whole hook-and-loop section, with no worry about falling down when observing.

• Adjustable Dew Shield - It added flexibility to fit 5"/6”/8”/9.2" optical tubesoptical tubes, which it’s a great addition for your main telescope or little spare telescope.  

           Dimension: 79 x 33.5 cm 

• Easy Transportation - It rolls up small for storage and snugly stays on your telescope cutting down incoming light glare and dew from forming in the collector plate.

• Dew Away - Keep dew away and gives you clear observation for the entire night, on a cold night when your telescope was warm, just put it outside, and view through it and get no condensation on the main telescope glass. Cutout accommodates telescope dovetail rails.

• Flexible Velcro Fastener - Our velcro fastener is different from others’ dew shields, it is designed as four strips and it can be adjusted to different lengths as long as you want.