Confirm the exact configuration
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

Thorlabs
Thorlabs manufactures the LA1389-ML, a Ø1.5" N-BK7 Plano-Convex Lens featuring an SM1.5-Threaded Mount, a focal length of 200 mm, and an uncoated optical surface. Released on September 1, 2020, each unit has a package weight of 0.09 lbs, with lifecycle status available in current manufacturer documentation. Submit the exact part number, quantity, and application requirements for a quote.
Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Thorlabs references — within one business day.
For a faster response, include quantity, condition, and delivery destination.
Verified configuration
Engineering context
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Our sourcing response is prepared against Thorlabs LA1389-ML. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.