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SVBONY SV172 Dew Heater Strip 320mm for Telescopes Cameras Lens
SVBONY SV172 Dew Heater Strip 320mm
SVBONY SV172 Dew Heater Strip 320mm
SVBONY SV172 Dew Heater Strip 320mm
SVBONY SV172 Dew Heater Strip 320mm for Telescopes Cameras Lens

SVBONY SV172 Dew Heater Strip 320mm

by SVBONY
SKU SV-W9132B
$16.99 USD - $16.99 USD
$16.99 USD
$16.99 USD - $16.99 USD
$16.99 USD
Price Match Policy!
  • 320mm length for small telescopes, guide scopes and camera lenses
  • Actively prevents dew formation for clear, uninterrupted views
  • Flexible design wraps securely around optical tubes
  • Weather-resistant materials for reliable outdoor use
  • Engineered for efficient, low power consumption
2 in stock
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • SVBONY SV172 Dew Heater Strip 320mm for Telescopes Cameras Lens

    The SVBONY SV172 Dew Heater Strip delivers consistent, gentle warmth across its 320mm length, actively preventing dew from condensing on small telescope objectives and camera lenses to ensure your imaging or observing session is never cut short by moisture.

    The 320mm Solution for Dew-Free Nights

    As ambient temperatures drop, moisture in the air condenses on the coolest available surface—often your primary optics. The SV172 Dew Heater Strip's 320mm length suits smaller tubes and lenses, such as small refractors, guide and finder scopes, and camera lenses; it is too short to wrap an 8" Schmidt-Cassegrain. By maintaining the glass temperature just slightly above the dew point, it guarantees a clear, fog-free optical path from dusk until dawn.

    Efficient Power and All-Weather Design

    Built from durable, weather-resistant materials, the SV172 is designed to withstand damp, all-night observing sessions. Its construction ensures longevity and reliable heating in harsh conditions. The strip is engineered for thermal efficiency, drawing minimal power to preserve your field battery while providing the consistent heat needed to keep your optics clear.

  • Will the SVBONY SV172 320mm dew heater fit an 8" SCT?

    No. An 8" SCT tube has a circumference of roughly 720mm, so the 320mm strip cannot wrap around it. The SV172 320mm suits smaller tubes, finder and guide scopes, and camera lenses.

    Is the SV172 320mm strip long enough for a large camera lens like a 70-200mm f/2.8?

    Yes, the 320mm length is more than sufficient for large-barrel telephoto lenses. It allows you to wrap the heater around the main objective element or further down the lens barrel, effectively stopping both internal and external fogging during long-exposure astrophotography in humid conditions.

    Does the SVBONY SV172 include a power source or controller?

    The SV172 does not include a power source. Connect it to a compatible USB power source such as a power bank.

    How do I install the SVBONY SV172 320mm dew heater?

    Installation is simple. Just wrap the flexible strip snugly around the part of your telescope or lens you want to keep warm, typically the main housing for the objective lens or corrector plate. Secure it with the integrated fastener, then plug the cable into a USB power source.

    Will the SVBONY SV172 drain my field battery quickly?

    The SV172 is designed for high efficiency and low power draw. It consumes very little energy, making it an excellent choice for use with portable, limited-capacity power tanks during long nights in the field.

    Can I use the SVBONY SV172 on smaller equipment like finderscopes or eyepieces?

    Yes, on finders and guide scopes that fit within its 320mm length. For eyepieces, a shorter dew heater strip is usually more convenient.

  • Length 320mm

    • SVBONY SV172 Dew Heater Strip 320mm

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  • SVBONY Warranty Policy