AC508-400-C

Name: Thorlabs AC508-400-C — f = 400.0 mm, Ø2" Achromatic Doublet, ARC: 1050 - 1700 nm
Brand: Thorlabs

Thorlabs AC508-400-C — f = 400.0 mm, Ø2" Achromatic Doublet, ARC: 1050 - 1700 nm

The Thorlabs AC508-400-C is a discontinued Ø2" achromatic doublet with a focal length of 400.0 mm and an antireflection coating specified for 1050 to 1700 nm. Originally released on July 21, 2003, this optic was officially discontinued on May 18, 2023, and has been superseded by the replacement model ACT508-400-C. Submit the exact part number, quantity, and application requirements to request a quote for available inventory.

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Why no listed price?

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.

Manufacturer: Thorlabs
Part number: AC508-400-C
Product series: f = 400.0 mm, Ø2" Achromatic Doublet, ARC: 1050 - 1700 nm
Data verification: Manufacturer evidence reviewed

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Exact part-number verificationTechnical properties are matched to AC508-400-C.

Worldwide sourcingSupport for planned and urgent industrial requirements.

Manufacturer documentationA document is added when the reviewed source provides one.

Verified configuration

Technical Specifications

Product Name: f = 400.0 mm, Ø2" Achromatic Doublet, ARC: 1050 - 1700 nm
Lifecycle Status: Discontinued
This item has been replaced by ACT508-400-C .: View its last web presentation.
Last Web Presentation: Open
Release Date: July 21, 2003
Discontinued Date: May 18, 2023
Official Replacement Model: ACT508-400-C

Engineering context

Identification and RFQ Guidance

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.

What to include in your RFQ

Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.

Technical verification

Our sourcing response is prepared against Thorlabs AC508-400-C. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.