Who we are

Established in 2002, GEM International (Hong Kong) Limited is a ISO9001 certified professional manufacturer of consumer Oriented Optical goods.Such as camera Filters, extension lenses, lenses for iPhone, mobile phone camera add on lenses,digital camcorders  & cases.

Our team of professionals, with more than 20 years of experience in designing optical products is capable of developing innovative products for the global market and Delivering top grade quality.

Employing 250 highly skilled workers and 7 assembly lines in a 4,200 square meter production facility, our production capacity has reached over a quarter million Units per month. Following strict quality control protocols at every stage of the production process ensures that our products meets all international standards and Accurately fulfils our customers'expectations.

The core of our company's business philosophy is best represented by our motto "Better Quality, Better Performance and Better Profit”, we strive to bring better Quality and better performing products to all of our customers so they may earn better profit. Providing high quality products and excellent service at competitive Prices with prompt delivery, we look forward to Even greater cooperation with overseas customers.


Our factory has own  no dust assebline line and lens adjust and testing full TQC with 5S management.

Taiwan R&D team complied with Japan Design,international exclusive design.Welcome ODM& OEM.

Advanced information technology is bringing the world closer together,patented design in Taiwan and China is protected.
Purchasing is no longer just within the confines of your country,all of materials is approved by SGS certification for Reach and Rohs.

Tanla Lens is strong and reliable,with customers from all over the world (America,Europe,Middle East and Japan inclusive)

At Tanla lens, we care deeply about what we do! with over 20 years professional experience, our goal has always been to provide our products to the highest Standards. We take pride and pleasure in developing high quality equipments which have allowed our customers to enjoy better photography experience with Absolute trust in our products.

Assebly process, Laser printing process,Testing and Inspection process.

OEM/ODM: Specializing in optical solution provider.

Products related to photographic equipment, mobile phone camera lenses, camera additional lenses and filters, polarizers, ultraviolet rays, video lenses and filters, projectors, Drones, interactive game sensors, visual recording instruments, medical equipment, underwater imaging equipment, Unmanned aerial vehicles (UAV), detectors, practical education visual platforms, security equipment, law enforcement instruments, wearable digital devices, etc.

Tanla Logo is registed by Gem international (Hong Kong) Limited in china Since 2001.
Tanla Lens--Creative the Happy moment!