Optical glass BK7 50mm 60mm Protective dome lens for camera photography

• Domes make it better - Domes help correct aberrations that occur when light travels thru water as opposed to air. Domes can deliver better results compared to flat ports, and also make it easier or possible some results that flat ports would not capture.
• Size matters - Bigger domes are better than smaller domes, for a number of reasons. The tradeoffs are; heavier, bulkier, pricier than smaller domes.
• Glass is optically superior - Glass domes are optically superior to plastic or acrylic, and they do not scratch as easily. VY Optoelectronics Co., Ltd. manufacture both material of dome lenses.
• Customized specially for you - VY manufacture and design optical dome lens to fit any or all lenses thru adaptors and clamps. This design protects your investment and optimizes your usability and upgradeability over time.
• Domes are ideal for split-level and underwater use - While dome ports will not take anything away from your work above water, their impact or difference above the surface is irrelevant. Domes are ideal for split-level and underwater work.

Specification

Materials	BK7 or other optical glass,quartz,sapphire,Ge,Si,ZnSe,CaF2 etc
Diameter	1.5~300mm
Center thickness tolerance	+/-0.01mm
Length tolerance	+/-0.01mm
Width tolerance	+/-0.01mm
Diameter tolerance	+/-0.0005mm
Surface accuracy	N=1~3
Irregularity	ΔN=0.1~0.5
Surface quality	10/5~60/40
Coating	Upon request
Application area	Imaging,Lighting,Laser etc