Circus LED

Large diameter round lens bench magnifier

Circus LED is specially designed to withstand the rigours of everyday use in industrial and manufacturing applications where foreign object debris (FOD) is a concern.

  • 3.5 and 5 dioptre (1.88x and 2.25x magnification)
  • Superior round crown glass 6.5″ diameter lens
  • Ideal for clean environments

    Large diameter round lens bench magnifier

    Circus LED is specially designed to withstand the rigours of everyday use in industrial and manufacturing applications where foreign object debris (FOD) is a concern.

    The fully enclosed neck and internal spring-balanced arm make the Circus LED ideal for environments where cleanliness and sanitation are sought.

    No knobs to tighten, nothing to adjust. Circus LED has a highly flexible, self-balancing lamp head allowing it to be positioned vertically, horizontally and laterally.

    Circus LED bench magnifiers incorporate the same design excellence adopted throughout Vision Engineering’s award-winning stereo microscopes, providing maximum clarity, flexibility and stability.


    Shadow-free magnification

    Circus LED offers shadow-free magnification with light coming from both sides.

    Flexible working positions

    Our magnifiers are specially designed to maximize horizontal and vertical movement. They provide significant horizontal reach, and will always stay in the right position without drifting.

    The arms are balanced by spring systems which ensure smooth and easy positioning – no knobs to tighten, nothing to adjust.

    The flexibility of the self-balancing arm and friction-free joint between the head and arm makes exact positioning easy. The fully-enclosed neck design is ideal for mechanical, electronics, circuit boards, dental and jewellery and other precision applications.


    Importance of light quality

    Good lighting reduces the risk of health problems, increases safety, and enhances productivity.

    Hence great importance is placed on the light quality of our illuminated magnifiers, having powerful luminators with excellent light output. The quality and exact positioning of the light sources in relation to the lens allows for virtually shadow-free magnification and excellent colour rendering capabilities.

    Glass lens for superb clarity and comfort

    The quality of Circus LED starts with the high performance optical glass lens providing superb clarity. The crown glass lens has a lower refractive index than plastic lens bench magnifiers, which reduces the loss of light in transmission through the lens and therefore less distortion of the image.

    Less distortion makes for more comfortable viewing over longer periods of time.


    Our bench magnifiers have a number of accessories to provide the ultimate flexibility and comfort.

    STAYS Lenses

    Self-Traction Accessory Yield System for use with KFM LED, WAVE LED, LFM LED, IFM, and Circus LED Magnifiers. 2” lens diameter (2.5” diameter including the silicon gasket frame).
    504044 diopter STAYS Lens
    504066 diopter STAYS Lens
    5041010 diopter STAYS Lens

    Floor Stand Trolley

    863mm (34″) Painted steel pole and cast iron base includes both casters and glides
    50036BKRolling Floor Stand, black
    50036LGRolling Floor Stand, light grey
    50036WTRolling Floor Stand, white
    SPA025674Extra weight for Rolling Floor Stand, white (required for Circus magnifiers)

    A-Edge Mount Bracket

    For mounting products to horizontal surfaces. Maximum 57mm (2.25”) opening.
    60001BKA Edge Mount Bracket, black
    60001LGA Edge Mount Bracket, light gray

    C-Surface Mount Bracket

    For permanent mounting to tables or other horizontal surfaces.
    50005BKC Surface Mount Bracket, black
    50005LGC Surface Mount Bracket, light grey

    AH Mount Bracket


    To discuss your particular requirements in further detail, please contact  your local Vision Engineering representative.


     Lens3.5 diopter or 5 diopter, Large diameter crown glass lens
     Secondary  lenses4, 6 or 10 diopters STAYS secondary suction lenses can be attached to the crown glass lens.
    • LED modules Dimmable 10-100%.
    • 10W total energy consumption
    • 3830 lux at 297mm (11″) focal length
    • Correlated colour temperature (CCT) is 4000°K
     Arm  technologySelf-balancing arm with friction-free joint between the head and arm. Heavy duty internal spring,1000mm (40″) parallel, three pivot arm with19.05mm (0.75″) steel tubing.
     MountingEdge clamp or other table clamps, integrated table mounts and trolley available.
     TimerCircus LED is equipped with dimming 10-100%.
    Auto shut-off function after 4 or 9 hours.
     Power  consumption10 Watts
     Power supplyOperating voltage 100V – 240V 50/60 Hz.
     AccessoriesDust cover included. Refer to accessories tab for other options.

    Magnification Table

    This table provides a complete overview of the total magnification options available by adding secondary lenses to the illuminated magnifiers.

    lens diopter
    lens diopter
    Total magnificationTotal
    Focal length
    Wave® LED, Circus LED (incl. ESD-Safe and UV models)
    3.51.88X3.5285mm (11″) (5″) (4″)
    3.510.04.38X13.575mm (3″)
    5.02.25X5200mm (8″) (4.3″) (3.5″) (2″)
    KFM™ LED, LFM LED, KFM, IFM (incl. ESD-Safe models)
    3.01.75X3330mm (13″) (5.5″) (4.3″) (2.8″)
    5.02.25X5200mm (8″) (4.2″) (3.5″) (2″)


    Can I have a higher dioptre lens?

    There are two options available 3.5 and 5 dioptre models, please specify which dioptre lens you wish when ordering. The lenses are fixed and not inter-changeable.

    To increase magnification further there are a number of secondary lenses available (refer to magnification table in Technical section).

    Generally 3 and 3.5 dioptres provide the best balance between magnification and working distance for more industrial uses.

    What is the benefit of a glass lens over a plastic lens?

    There are number of reasons that mineral glass lenses provide exceptional clarity and robustness over that of plastic lenses.

    High quality glass mineral lens offers less distortion than plastic as it has a better surface form and refraction index, so allowing more light through providing better optical clarity of the image.

    Plastic can be easily scratched and is less durable than glass and can be accidentally melted through contact with a hot source such as solder or splatter as well as being less resistant to chemical and solvents.

    Glass lenses bench magnifiers are usually higher quality than plastic lens versions and are more suited to industrial, scientific and manufacturing applications.

    Can I easily adjust the illumination?

    Yes. There is 10% – 100% dimmable illumination control.

    What is a dioptre?

    A dioptre (UK), or diopter (US) is a unit of measurement of the optical power of a lens or curved mirror.

    As the dioptre increases, the lens becomes thicker, making the object look bigger. The higher the dioptre, the more magnification the lens provides. A flat window has an optical power of zero dioptres, and does not converge or diverge light.

    It is also important to note that the power of the lens is inversely related to the focal distance (working distance). Meaning, as the power of the lens increases, so the focal distance decreases, making it more difficult to perform tasks with high magnification lenses.

    See Mantis Compact low magnification stereo microscope if higher magnification is required.

    Magnification is calculated by simply dividing the dioptre by 4, then adding 1.

    e.g. 3 dioptre lens = 3/4 + 1 = 1.75x

    Therefore, objects viewed through a 3 dioptre lens will appear 175% bigger than normal.

    Additional information

    Ergonimic 'Eyepiece-less"


    Image Capture



    Low (20x max)

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