SVBONY SV172 Lens Warmer, 240mm Lens Heater Warmer Dew, 3 Gear Regulator Temperature USB Universal Dew Heater Strip for Telescope Camera
Electronics > Camera & Photo > Accessories > Telescope & Microscope Accessories > Telescope Accessories > Dew Caps
About this item
- USB port design; 1.8m USB cable length you can connect it your power bank or any other power source with a USB port; 1.9A to 2.0A input current; 5V input voltage
- Universal lens warmer;Lens Warmer prevents telescope camera lens from fogging dew by warming up the lens on a camera or telescope; it also warming up water bottle and use as wrist knee strap
- Fit external diameter below 76mm; 50mm narrow width does not interfere focusing and will not produce dark corners in the field; 66g or 2.32oz net weight will not be a burden for your telescope
- Temperature adjustment; strong medium weak 3 gear heating modes that you can adjust the temperature according to your requirements
- Heating fast and evenly; built in aluminum make heating evenly; Alloy fiber heating wire provides super fast;Three layer insulation material to reduce heat dissipation
Reviews
★★★★★
Size: 240mm | Verified Purchase
It works with my USB powerpack
I needed an eyepiece heater to combat the inevitable breathing induced fog that cursed my infrequent viewing nights...I am primarily a visual observer, and I have a few 2" eyepieces that plop into my dob for orgasmic stellar and planetary observations. Recently with the conjunction of Saturn and Jupiter, my target was way low on my horizon and was only getting worse as the days ticked off to the 21st...was out with my wife in early December and we kept breathing on the eyepiece and it was super frustrating, so I researched and bought this thingy.
It works well and plugs right into my USB powerpack that I've had for years. This one worked, while another type of heater meant for a more expensive battery setup did not work with my powerpack and an adaptor cord to USB (returning the other one, cause it was just an experiment to see if it would work and it did not warm appreciably). I don't need a dew-not or dewzapper system, when I have something that works very well with my USB pack...you mileage may vary, especially if you intend to use a 12v power supply for other things and justify a $150 power distro system.
★★★★★
Size: 400mm | Verified Purchase
Good product, keep an eye on temperatures if not using regulator
I used this product to warm up the sides of an acrylic fish tank to stop condensation from forming and leading to mold. It worked great with the included temperature regulator, but the regulator automatically shuts it off after a certain period of time. I wanted it on constantly, so I plugged it in directly without the regulator. I got a little bit of deformed plastic on the fish tank after leaving it running it constantly for about 3 days. So, I guess I should have kept using the regulator!
I'm leaving 5 stars because the quality was very solid and it looks like it would work great for its intended use on cameras.
I also loved the velcro system, I was able to attach the lens warmer to something bigger than intended simply by buying a normal strip of velcro.
I also liked that the regulator was a separate piece, gives more flexibility for use.
★★★★★
Size: 320mm | Verified Purchase
Works Great!
I used this on a Nikon 500mm f8 catadioptric lens for astrophotography in coastal Maine. Without the dew heater I had a 1/4 inch of water condensate on the lens. On a second attempt, using the dew heater set on high, there was no condensation on the lens. I have attached the 120 minute integration of the Andromeda Galaxy taken from that session.
★★★★★
Size: 400mm | Verified Purchase
Order the long one
Easy to use and works. Order the long one (400mm) because it just wraps round on itself so it will cover a wider range of diameters from 2 inch up to 5 inch and it's only a couple more bucks. I just ordered a second one as a backup.
★★★★★
Size: 400mm | Verified Purchase
Perfect Fit
Perfect fit for my Explore Scientific 127. I turn it on when I set up about dusk. I set it on medium. No Dew issues by imaging time. I plug it into my USB port of my power strip.
★★★★★
Size: 320mm | Verified Purchase
Works Great!
I needed a dew heater that is minimum 17" so I bought two of the 9" strips they velcro together and worked Perfect! for The "Uranus Explorer"
★★★★★
Size: 400mm | Verified Purchase
on a budget here is your answer
Can't speak about longevity yet but this works way better than expected on my 80mm APO. For the price will order a spare.
★★★★★
Size: 320mm | Verified Purchase
Be sure to measure your scope's CIRCUMFERENCE (not aperture) in selecting which model.
Economical and works as described. I ordered the 320 mm (middle size) for my 100 mm aperture skywatcher ed refractor. It was barely big enough and I should have chosen the larger model. Measure the circumference in the area where you plan to attach the dew heater!
★★★★★
Size: 320mm | Verified Purchase
great strip
great design, fits scope, for power i use 12v 3amp dc adapter and works great.
★★★★★
Size: 240mm | Verified Purchase
Works great
Easy to use.
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Farpoint Flexible Dew Shield Designed for The Celestron 8" or Meade 8" SCT, Notched, FP351
Question & Answer
Question :
Does this have an auto-shutoff? and what's the difference between the sv172 and dn30?
Answer :
Dear customer ,
Thanks for your contact.
No, it is manual.
There is a power button and a thermostat on the cable. Just press it to use.
For accessories;we provide 2 months warranty;within 2 months;you can return for refund or replacement.If you have any other questions about warranty;please contact us freely;we will work with you win to win.
If my reply still doesn't answer your question well or you want to know more details about this product, please contact us by message on Amazon. Because the customer's message can be seen in the first time on Amazon, and will solve the problem as soon as possible. Once I receive your response, I will try my best to answer your questions. Sincerely look forward to your reply.
Best wishes !
Kelly
Question :
How long will these stay on for? I have 3 of them (two large and one small) and the small one around my guide scope turns off after a shot time?
Answer :
Dear customer ,
Thanks for your contact.
The duration is determined by the power supply.
Please connect the SV172 Dew Heater Strip to the power supply through the USB port, and it can be used after connecting the power supply.
For accessories;we provide 2 months warranty;within 2 months;you can return for refund or replacement.If you have any other questions about warranty;please contact us freely;we will work with you win to win.
If my reply still doesn't answer your question well or you want to know more details about this product,please contact us by message on Amazon. Because the customer's message can be seen in the first time on Amazon, and will solve the problem as soon as possible. Once I receive your response, I will try my best to answer your questions. Sincerely look forward to your reply.
Best wishes !
Kelly
Question :
Is this the right size for an 8" SCT telescope?
Answer :
Dear customer ,
Thanks for your contact.
It fit external lens diameter:below 101mm.
For accessories;we provide 2 months warranty;within 2 months;you can return for refund or replacement.If you have any other questions about warranty;please contact us freely;we will work with you win to win.
If my reply still doesn't answer your question well or you want to know more details about this product,could you please contact us by message on Amazon? Because the customer's message can be seen in the first time on Amazon, and will solve the problem as soon as possible. Once I receive your response, I will try my best to answer your questions. Sincerely look forward to your reply.
Best wishes !
Kelly
Question :
How do u get it to turn on ?
Answer :
Dear customer ,
Thanks for your contact.
There is a power button and a thermostat on the cable. Press it to use.
For accessories;we provide 2 months warranty;within 2 months;you can return for refund or replacement.If you have any other questions about warranty;please contact us freely;we will work with you win to win.
If my reply still doesn't answer your question well or you want to know more details about this product,could you please contact us by message on Amazon? Because the customer's message can be seen in the first time on Amazon, and will solve the problem as soon as possible. Once I receive your response, I will try my best to answer your questions. Sincerely look forward to your reply.
Best wishes !
Kelly
Question :
Will this fit the 14-24mm Nikon lens ?
Answer :
Dear customer ,
Thanks for your contact.
The SV172 band is 320mm long. You can choose according to the circumference of your lens.
For accessories;we provide 2 months warranty;within 2 months;you can return for refund or replacement.If you have any other questions about warranty;please contact us freely;we will work with you win to win.
If my reply still doesn't answer your question well or you want to know more details about this product,could you please contact us by message on Amazon? Because the customer's message can be seen in the first time on Amazon, and will solve the problem as soon as possible. Once I receive your response, I will try my best to answer your questions. Sincerely look forward to your reply.
Best wishes !
Kelly
Question :
Does it turn off after a few hours even if there is adequate power?
Answer :
Dear customer ,
Thanks for your contact.
When the chip settings are limited, it will automatically shut down in about 8 hours.
For accessories;we provide 2 months warranty;within 2 months;you can return for refund or replacement.If you have any other questions about warranty;please contact us freely;we will work with you win to win.
If my reply still doesn't answer your question well or you want to know more details about this product,please contact us by message on Amazon. Because the customer's message can be seen in the first time on Amazon, and will solve the problem as soon as possible. Once I receive your response, I will try my best to answer your questions. Sincerely look forward to your reply.
Best wishes !
Kelly
Question :
Are there longer versions than 400mm available? Unfortunately the 400mm won't fit a standard 5" telescope.
Answer :
Dear customer ,
Thanks for your contact.
SV192 Dew Heater Strip has 480mm and 560mm.They are expected to arrive in 2 months.
For accessories;we provide 2 months warranty;within 2 months;you can return for refund or replacement.If you have any other questions about warranty;please contact us freely;we will work with you win to win.
If my reply still doesn't answer your question well or you want to know more details about this product,could you please contact us by message on Amazon? Because the customer's message can be seen in the first time on Amazon, and will solve the problem as soon as possible. Once I receive your response, I will try my best to answer your questions. Sincerely look forward to your reply.
Best wishes !
Kelly
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