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Availability: Production Overrun Product:
5 In stock

Customize this Filter: Request a quote for custom specifications, sizes, or volume quantities.




About Production Overrun Products

Omega's production overruns offer exceptional value at a discounted price, and are backed by the same warranty as our stock products. After overrun inventory is exhausted, this product will still be available on a made-to-order basis. Please note it is available at this price on an overrun basis only.


Spectral Curves

The spectral curve and ascii data is a typical representation of this filter's performance, but may vary due to production and design variations. Omega only guarantees this part to meet the product specifications listed.

Detailed Specifications

Additional Information

SKU W2758
Filter Type Longpass
Inventory Type Production Overrun
Coating Type Protected Coating
Shape Round
Diameter (mm) 40
Diameter Tolerance (mm) +0/-0.25
Thickness (mm) 4.7
Thickness Tolerance (mm) +0.1/-0.1
Clear Aperture Diameter (mm) ≥34
Flatness λ/2 RMS in 80% of CA
Parallelism ≤ 15 arc seconds
Mounting Type Ring Mounted
Mounting (Outer Ø - Thickness - Clear Aperture in mm) M03-40-4.7-36
Center Wavelength (nm) 510
Center Wavelength Tolerance (nm) +5/-0
Transmission ≥ 85% avg cut-on to 700nm
Blocking ≥ OD5 UV-504nm
Transmitted Wavefront Distortion ns
Angle of Incidence 0
Half-Cone AOI 0
AR Coating Semi-hard BBAR on F side
Minimum Surface Quality Assembly per MIL-C-48497A (F scratch/ F Dig)