How does the SVBONY SV172 320mm dew heater help when imaging with an 8" SCT?

An 8" SCT has a large corrector plate that is highly susceptible to dewing over. The SVBONY SV172's 320mm length is ideal for wrapping around the optical tube just behind the corrector cell, providing even heat distribution that keeps the entire glass surface clear all night, preventing loss of contrast and detail in your images.

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?

No, the SV172 is the heater strip only. You will need to connect it to a dedicated dew controller and a power source (typically a 12V field battery or power tank). This modular approach allows you to integrate it into your existing dew prevention system.

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 your dew controller.

Will the SVBONY SV172 drain my field battery quickly?

The SV172 is designed for high efficiency and low power draw. When used with a dew controller that pulses power, 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?

While the 320mm length is optimized for larger optics, you can wrap it multiple times around smaller components. However, for finderscopes and eyepieces, a shorter dew heater strip is often a more convenient and energy-efficient solution.

SVBONY SV172 Dew Heater Strip 320mm for Telescopes Cameras Lens

SVBONY SV172 Dew Heater Strip 320mm

by SVBONY

SKU SV-W9132B

CA$24.00 - CA$24.00

CA$24.00

CA$24.00 - CA$24.00

CA$24.00

Price Match Policy!

320mm length for larger telescopes, objectives, 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

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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 larger telescope objectives, camera lenses, and corrector plates 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 provides complete coverage for the optics on mid-to-large instruments, such as the corrector plates of 8" Schmidt-Cassegrains or the objective lenses of large refractors and telephoto lenses. 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.
How does the SVBONY SV172 320mm dew heater help when imaging with an 8" SCT?

An 8" SCT has a large corrector plate that is highly susceptible to dewing over. The SVBONY SV172's 320mm length is ideal for wrapping around the optical tube just behind the corrector cell, providing even heat distribution that keeps the entire glass surface clear all night, preventing loss of contrast and detail in your images.

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?

No, the SV172 is the heater strip only. You will need to connect it to a dedicated dew controller and a power source (typically a 12V field battery or power tank). This modular approach allows you to integrate it into your existing dew prevention system.

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 your dew controller.

Will the SVBONY SV172 drain my field battery quickly?

The SV172 is designed for high efficiency and low power draw. When used with a dew controller that pulses power, 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?

While the 320mm length is optimized for larger optics, you can wrap it multiple times around smaller components. However, for finderscopes and eyepieces, a shorter dew heater strip is often a more convenient and energy-efficient solution.
Length 320mm
SVBONY Warranty Policy

SVBONY SV172 Dew Heater Strip 320mm