Model No.:3.5-8mm, 2.8-12mm, 4-9mm,6-15mm, 6-60mm, 5-100mm
Product Origin:China
Brand Name:Ricom
Price Terms:FOB
Payment Terms:T/T
Certification:CE, RoHS
Description:Our lenses are all-metal except for the non-cylindrical components in the surface. Other lenses in the same price range are partly plastic. Surface finish: our lenses are treated with oxidation, which is standard for the optical instrument. However, others use "painting" instead of "sand oxidation". The surface turns out with low hardness, thus fragile and easy to scratch. The result is a much shorter life. Processing technology and design standard: our lenses are designed following Korean and Japanese standards. Our manufacturer uses CNC (computerized numerical controlled) lathe and milling machines, therefore, our housing parts are high-precision, smooth, and highly finished. However, others use outdated ordinary lathe and milling machines. The lenses have big gaps so that they use a lot of "damping grease" to seal the gap. The main problem is grease will melt in summer and blur the lenses, which is very hard to clean. Only a special chemical fluid can wash the grease off. Assembling: all of our lenses are assembled in a clean room, which delivers a higher quality lens. Packing: Fore cam package / OEM package