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Your cart is empty.Product Description
Temperature Control
The regulator features 3 temperature levels and an on/off button allowing you to control it quickly and easily.
Touch Fasteners
Installed by hook and loop touch fasteners, the lens warmer can attach to your equipment quickly and securely.
Wide Compatibility
Recommended for lenses/telescopes with a circumference of up to 12"/300mm and a diameter of 96mm.
M. Houston
Reviewed in Germany on March 2, 2025
This lens warmer fits perfectly with it’s velcro band and heats up quickly to one of three settings. The cord to the not-included battery is long enough to keep the battery in a pocket or attached to a tripod. Highly recommend!
Amanda D
Reviewed in the United States on March 19, 2025
Before this, I was using a hand warmer to avoid condensation in my lens. This is an environmentally conscious way of achieving the same effect. It is reliable, easy to use and adjustable so that it can be used on any lens. It is a great tool and is lightweight and easy to transport and store when not in use.
JD
Reviewed in the United Kingdom on January 8, 2025
Having read reviews of similar, but cheaper, products I decided to spend a few extra quid and get the Neewer dew strap as I've always been pleased with other Neewer products.Worked as expected when plugged into a power bank and a difference could be felt between each of the 3 heat settings. Fitted fine on the lens I plan to use as well as a 4" telescope I have. It does not wrap all the way round the telescope, but the elastic velcro strap bridges the last part. With heat coming from underneath it should not matter that an inch or so is missing at the top.However, when measuring the "max" temp reached by the strap it does not seem to tally with the documentation. That claims that you can get 65 degrees Celsius from the strap. However, even after letting the lens and body heat soak for some time in a room at around 19 degrees the max temp I recorded was just over 50 degrees C. Somewhat short of the 65 claimed.Is this going to matter? Well I guess I'll discover when I'm freezing my fingers off in the middle of Norwegian nowhere!
Peter Curley
Reviewed in Canada on January 4, 2025
Too cold to take my camera equipment outside, but I do use it to keep my coffee, hot and it does a wonderful job
W. S.
Reviewed in Germany on April 10, 2025
Das Heizband wird wie erwartet in den drei Heizstufen unterschiedlich warm. Die Leistungsaufnahme schwankt zwischen 0 und 9 Watt, die Heizleistung wird also über die (Einschalt-)Zeit gesteuert. In der niedrigsten Heizstufe wird es handwarm; in der höchsten schon merklich wärmer - mangels Thermometer würde ich ca. 50° C schätzen (bei Raumtemperatur versucht).
Hobby
Reviewed in the United States on July 2, 2024
As an avid astrophotographer, I often face the challenge of keeping my lens clear on cold, dusty nights. This lens heater has been a great solution, effectively preventing my lens from fogging up. However, the only drawback is that it requires more power than a standard 5V 2A power bank can provide. I had to purchase a more powerful power bank, which I also use for my flashlight, so it wasn't a big issue in the end. Despite this minor inconvenience, the lens heater performs exceptionally well and is a valuable addition to my gear. Overall, it's a good product that I would recommend.
Hubert de B.
Reviewed in France on October 18, 2024
Ce chauffe objectif ne fonctionne pas . Demande de sav aucune réponse.
Customer
Reviewed in the United States on April 16, 2024
These are a must have for any astro imager working in an environment where dew is a possibility. It helps to keep the dew off your optics so that your images aren't ruined. USB powered so you can just run it off your laptop or a portable charging battery. I've also found it useful to keep the dew off my 2" eyepieces when working visually. Highly recommend.
Jack
Reviewed in the United States on October 22, 2023
I currently own a Fantaseal dew heater and the reason I wanted to try this Neewer is the control of High Med low heat. My Fantaseal is one setting.I also own a more complicated set that is only for my telescope and eye piece.This Neewer heats up quickly. It starts on the highest setting and you have to push the button to go down. The buttons are all red, I do wish they would go white, blue, red, so in the dark I would know which setting without a light, but at least red doesn’t ruin your night vision. The strap is slightly longer than my Fantaseal yet the actual heat strip area is about the same. It is very soft fabric, I am not worried about scratching my lens. The cord is nice and thick. The purple part is very stretchy and allows to fit larger lenses, I was able to wrap it around my baby scope, which is 13” circumference. You could go farther but that would be about the limit if you want the full lens with a ring of heat around it. I see they sell a slightly longer one as well. Mine is a 12” and they have a 20” . Standard USB plug.I wrap my camera in a plastic cover that keeps any moisture build up off my gear, I live in the midwest and its always humid in the summer and frosty in the winter. With a heater on the lens and the camera on, I have never had my gear freeze. I sometimes wrap an extra velcro strap over the top of the heater to help retain heat.
Customer
Reviewed in the United States on October 19, 2023
This is great for night time and early morning long exposures. The heating portion of the band is about 12" long, then there is an elastic + velcro bit to secure it in place. That length of heating element is more than adequate to fit pretty much any lens with an 82mm filter (or smaller) easily. If you have a telephoto type lens with a huge front element, then measure before ordering.The description states that this needs a 2A (10W power supply and that's absolutely true. I tried this out on my test bench and the heater will power on for half a second if the power supply is less than 2A, but it won't stay on.When plugged into a battery bank that can put out 2A, this turns on to the highest mode first, then a tap of the button drops you to medium, then low, then off. This heater turns on and off to regulate the temperature-- that is, it runs at 0% and 100%, and nothing in between.At room temperature on the high setting, this pulls 10.6W for ~5 seconds, then turns off for ~2 seconds and repeats. At room temperature on medium this pulls 10.6W for ~2 seconds and turns off for ~4 seconds. On low, this turns on for ~1.5 seconds and off for ~7 seconds.I don't have a way to use my benchtop power supply outside in the cold to see if those times stay the same when it gets colder, but I'm betting there's not a huge change. That means on high it pulls an average of ~8W, on medium it pulls an average of ~4W and on low it pulls an average of ~2W. If you have a 25,000 mAh battery bank, you should get 16 hours on high, 35 hours on medium, and 67 hours on low.
PatGC
Reviewed in the United States on October 13, 2023
I remember trying to get autofocus to work when I used a slr camera and it was winter. This should help. I just gave away my heavy camera and equipment to a friend, so I’ll let him use this if he needs it.The heater has to be connected to a power source, which makes it inconvenient for outdoor photography. Tethering to something always seems to make it difficult to move the lens around freely.It can be used for other purposes, though. It can be a body warmer under coats or around wrists or ankles. As long as there is a power source it can be used to warm something up. That makes it more versatile and a better value.
DavidOrDave
Reviewed in the United States on October 12, 2023
Radiational cooling can quickly bring your astrophotography session to an end if the air is humid. You need a dew heater. This dew heater is nicely made and easy to secure around my camera lens. I use a homemade dew heater for my 8” telescope and it is invaluable. But I needed a heater for my camera when used stand-alone with just its lens, and this heater is a good value so I didn’t bother making my own.After wrapping around my DSLR camera lens, I placed this heater flat atop a temperature sensor and got readings about 10 degrees lower than listed in the product description. However, that’s not quite fair, as when it’s wrapped over a lens it probably does get warmer with the heat trapped in. In any case – you don’t need much…just enough to elevate the lens’ temperature above the dew point by a few degrees. It’s plenty warm enough for a camera lens or small telescope.The photo shows the dew heater laid out atop a temperature sensor board (Arduino) and another showing the dew heater's controller. There’s not much to that and it works well enough.Of course, you need something to plug it into! I use a battery box with a 12-volt car socket to power my telescope, and a 12v to USB adapter works fine. The dew heater comes with a decent fabric carrying pouch with draw strings.
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