Changchun VY Optics Factory Customized Subsea Camera Protection K9 Sapphire Glass Flange Dome Lens

Item Number:X-P22D2Y8601

The dome port is a concentric lens.Dome ports greatly reduce refraction, radial distortion, axiality, and chromatic aberration.

  • Outer Diameter: 3mm - 300mm
  • Thickness: 1mm-30mm
  • Dimension Tolerance: +/-0.05mm or better
  • Surface Quality: 60-40 or better
  • Surface Accuracy: 1 lambda or as requested
  • Centration: 1 arc min or customized
  • Coating: Optional

What is optical dome lenses?

Optical dome lenses provide protective boundaries while allowing for a clear view between two environments.

An optical dome is a lens with two concentric spheres. Sometimes they are referred to as curved planar parallel plates.

VY Optics provides dome lenses of various materials.


Why choose dome lens?

Domes are ideal for underwater and split-level (half over/under) photography, because they correct for aberrations that occur as light travels at different speeds above and below water. 


Picture display of VY hemispherical dome lens


Specification of glass flange dome lens

Material K9
Flange Diameter 156mm
Flange Thickness 10mm
Outer Diameter 150mm
Inner Diameter 140mm
Thickness 5mm


Video presentation of glass dome lens with flange 



People also ask

  • What does a dome do for underwater photography?
    Domes are essential underwater when shooting wide angle and zoom lenses. A flat port magnifies objects the same way your dive mask does, and it turns into a port hole when shooting wide lenses. 

  • Which lens makes things look closer?
    A concave lens makes objects look smaller and closer. Concave lenses correct nearsightedness.

  • What lenses make you look bigger?
    Telephoto lens compress space, making objects appear larger and closer together than normal


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