Quality optics and reliable body made of metal. This magnifier is a great assistant for people with imperfect eyesight. It allows for reading small font text, examining tiny details on photographs, drafts, and maps. A magnifier delivers a sharp and clear image across the entire field of view. It comes in useful in any house.
SvBony SV192 Dew Heater 12V for Telescopes and Camera Lens, 560mm
Prevents dew condensation from forming on the glass surface.
Provides even heat distribution. Power-efficient design will not result in an extra drain on your power supply.
5.5X2.1 female interface design,easy connected to various 12V power inputs;
Protect optical equipment such as telescopes from fogging or freezing.
Three-speed regulator with medium-weak heating mode. Adjust temperature according to different usage requirements. Super-fast continuous heating, quick start heating;
Width of the 50mm belt will not interfere with focusing, and will not produce vignetting in the field of view;
Great heat preservation effect: imitating OK cloth, SBR, and Black-T three-layer heat preservation material, reducing heat dissipation, and no wrinkles on the inner surface after bending;
Uniform heating: the built-in aluminum film has a uniform heating surface and no dead ends;
TPE Silica power cord under low temperature won't become hard, also prevents internal short circuits.
Measure the circumference of the telescope tube or camera lens (or measure the tube diameter - not the scope aperture - ×3.14). Compatible with OD of telescopes/lenses below 178mm