EKSMA Optics uses cookies to give you the best shopping experience. If you continue to use our services, we will assume that you agree to the use of such cookies.

Understand
Your cart
0
There are no items in your cart.
Add items to your cart and request an official quote or order online
Your cart
0
Products categories
Login/Register
There are no items in your cart.
Add items to your cart and request an official quote or order online

EKSMA Optics uses cookies to give you the best shopping experience. If you continue to use our services, we will assume that you agree to the use of such cookies.

Understand
arrow--left
Go back

Neutral Density Absorption Type Filters at 450-650 nm

Neutral Density Absorption Type Filters at 450-650 nm

EKSMA OPTICS neutral density (ND) filters attenuate VIS spectral region. The optical density varies from 0.1 to 3.0, 1 or 2 inches size square and round shapes are available.

from 28 $
delivery Estimated delivery time: 4 - 5 days
Qty discount: 5-9 pcs. of the same item - 5% OFF! 10+ pcs. 10% OFF!
Products
Specifications
Brochures
Description
Size
Optical Density
Internal Trans­mi­ttance
Remove all filters
Round, ø25.4 mm
Code Material Size Optical Density Internal Trans­mi­ttance Price Delivery Add to cart
240-2500 neutral density color glass ø25.4 mm 0.05 89% @ 546 nm 28 $ 4 - 5 days
i 240-2501 neutral density color glass ø25.4 mm 0.1 80% @ 546 nm 28 $ 4 - 5 days
i 240-2502 neutral density color glass ø25.4 mm 0.2 63% @ 546 nm 28 $ 4 - 5 days
i 240-2503 neutral density color glass ø25.4 mm 0.3 50% @ 546 nm 28 $ 4 - 5 days
i 240-2504 neutral density color glass ø25.4 mm 0.4 40% @ 546 nm 28 $ 4 - 5 days
i 240-2505 neutral density color glass ø25.4 mm 0.5 32% @ 546 nm 28 $ 4 - 5 days
i 240-2506 neutral density color glass ø25.4 mm 0.6 25% @ 546 nm 28 $ 4 - 5 days
i 240-2507 neutral density color glass ø25.4 mm 0.7 20% @ 546 nm 28 $ 4 - 5 days
i 240-2508 neutral density color glass ø25.4 mm 0.8 15% @ 546 nm 28 $ Request
i 240-2509 neutral density color glass ø25.4 mm 0.9 12.5% @ 546 nm 28 $ Request
i 240-2510 neutral density color glass ø25.4 mm 1 10% @ 546 nm 28 $ 4 - 5 days
i 240-2515 neutral density color glass ø25.4 mm 1.5 3% @ 546 nm 28 $ 4 - 5 days
i 240-2520 neutral density color glass ø25.4 mm 2 1% @ 546 nm 29 $ 4 - 5 days
i 240-2530 neutral density color glass ø25.4 mm 3 0.1% @ 546 nm 31 $ 4 - 5 days
i 240-2540 neutral density color glass ø25.4 mm 4 0.01% @ 546 nm 32 $ 4 - 5 days
i 240-2550 neutral density color glass ø25.4 mm 5 0.001% @ 546 nm 28 $ 4 - 5 days
i 240-2560 neutral density color glass ø25.4 mm 6 0.0001% @ 546 nm 29 $ 4 - 5 days
Rectangular, 25.4 x 25.4 mm
Code Material Size Optical Density Internal Trans­mi­ttance Price Delivery Add to cart
i 240-2600 neutral density color glass 25.4 x 25.4 mm 0.05 89% @ 546 nm 29 $ 4 - 5 days
i 240-2601 neutral density color glass 25.4 x 25.4 mm 0.1 80% @ 546 nm 29 $ 4 - 5 days
i 240-2602 neutral density color glass 25.4 x 25.4 mm 0.2 63% @ 546 nm 29 $ Request
i 240-2603 neutral density color glass 25.4 x 25.4 mm 0.3 50% @ 546 nm 29 $ Request
i 240-2604 neutral density color glass 25.4 x 25.4 mm 0.4 40% @ 546 nm 29 $ 4 - 5 days
i 240-2605 neutral density color glass 25.4 x 25.4 mm 0.5 32% @ 546 nm 29 $ 4 - 5 days
i 240-2606 neutral density color glass 25.4 x 25.4 mm 0.6 25% @ 546 nm 29 $ 4 - 5 days
i 240-2607 neutral density color glass 25.4 x 25.4 mm 0.7 20% @ 546 nm 29 $ Request
i 240-2608 neutral density color glass 25.4 x 25.4 mm 0.8 15% @ 546 nm 29 $ Request
i 240-2609 neutral density color glass 25.4 x 25.4 mm 0.9 12.5% @ 546 nm 29 $ Request
i 240-2610 neutral density color glass 25.4 x 25.4 mm 1 10% @ 546 nm 29 $ 4 - 5 days
i 240-2615 neutral density color glass 25.4 x 25.4 mm 1.5 12.5% @ 546 nm 29 $ Request
i 240-2620 neutral density color glass 25.4 x 25.4 mm 2 1% @ 546 nm 31 $ 4 - 5 days
i 240-2630 neutral density color glass 25.4 x 25.4 mm 3 0.1% @ 546 nm 32 $ Request
i 240-2640 neutral density color glass 25.4 x 25.4 mm 4 0.01% @ 546 nm 33 $ 4 - 5 days
i 240-2650 neutral density color glass 25.4 x 25.4 mm 5 0.001% @ 546 nm 29 $ Request
240-2660 neutral density color glass 25.4 x 25.4 mm 6 0.0001% @ 546 nm 30 $ Request
Round, ø50.8 mm
Code Material Size Optical Density Internal Trans­mi­ttance Price Delivery Add to cart
240-5000 neutral density color glass ø50.8 mm 0.05 89% @ 546 nm 74 $ Request
i 240-5001 neutral density color glass ø50.8 mm 0.1 80% @ 546 nm 74 $ 4 - 5 days
i 240-5002 neutral density color glass ø50.8 mm 0.2 63% @ 546 nm 74 $ Request
i 240-5003 neutral density color glass ø50.8 mm 0.3 50% @ 546 nm 74 $ Request
i 240-5004 neutral density color glass ø50.8 mm 0.4 40% @ 546 nm 74 $ 4 - 5 days
i 240-5005 neutral density color glass ø50.8 mm 0.5 32% @ 546 nm 74 $ 4 - 5 days
i 240-5006 neutral density color glass ø50.8 mm 0.6 25% @ 546 nm 74 $ 4 - 5 days
i 240-5007 neutral density color glass ø50.8 mm 0.7 20% @ 546 nm 74 $ Request
i 240-5008 neutral density color glass ø50.8 mm 0.8 15% @ 546 nm 74 $ 4 - 5 days
i 240-5009 neutral density color glass ø50.8 mm 0.9 12.5% @ 546 nm 74 $ 4 - 5 days
i 240-5010 neutral density color glass ø50.8 mm 1 10% @ 546 nm 74 $ 4 - 5 days
i 240-5015 neutral density color glass ø50.8 mm 1.5 3% @ 546 nm 74 $ Request
i 240-5020 neutral density color glass ø50.8 mm 2 1% @ 546 nm 75 $ 4 - 5 days
i 240-5030 neutral density color glass ø50.8 mm 3 0.1% @ 546 nm 77 $ Request
i 240-5040 neutral density color glass ø50.8 mm 4 0.01% @ 546 nm 78 $ 4 - 5 days
i 240-5050 neutral density color glass ø50.8 mm 5 0.001% @ 546 nm 66 $ 4 - 5 days
240-5060 neutral density color glass ø50.8 mm 6 0.0001% @ 546 nm 67 $ Request
Rectangular, 50.8 x 50.8 mm
Code Material Size Optical Density Internal Trans­mi­ttance Price Delivery Add to cart
240-5600 neutral density color glass 50.8 x 50.8 mm 0.05 89% @ 546 nm 73 $ Request
i 240-5601 neutral density color glass 50.8 x 50.8 mm 0.1 80% @ 546 nm 73 $ Request
i 240-5602 neutral density color glass 50.8 x 50.8 mm 0.2 63% @ 546 nm 73 $ 4 - 5 days
i 240-5603 neutral density color glass 50.8 x 50.8 mm 0.3 50% @ 546 nm 73 $ Request
i 240-5604 neutral density color glass 50.8 x 50.8 mm 0.4 40% @ 546 nm 73 $ Request
i 240-5605 neutral density color glass 50.8 x 50.8 mm 0.5 32% @ 546 nm 73 $ 4 - 5 days
i 240-5606 neutral density color glass 50.8 x 50.8 mm 0.6 25% @ 546 nm 73 $ 4 - 5 days
i 240-5607 neutral density color glass 50.8 x 50.8 mm 0.7 20% @ 546 nm 73 $ Request
i 240-5608 neutral density color glass 50.8 x 50.8 mm 0.8 15% @ 546 nm 73 $ Request
i 240-5609 neutral density color glass 50.8 x 50.8 mm 0.9 12.5% @ 546 nm 73 $ Request
i 240-5610 neutral density color glass 50.8 x 50.8 mm 1 10% @ 546 nm 73 $ 4 - 5 days
i 240-5615 neutral density color glass 50.8 x 50.8 mm 1.5 3% @ 546 nm 73 $ Request
i 240-5620 neutral density color glass 50.8 x 50.8 mm 2 1% @ 546 nm 74 $ 4 - 5 days
i 240-5630 neutral density color glass 50.8 x 50.8 mm 3 0.1% @ 546 nm 75 $ 4 - 5 days
i 240-5640 neutral density color glass 50.8 x 50.8 mm 4 0.01% @ 546 nm 77 $ 4 - 5 days
i 240-5650 neutral density color glass 50.8 x 50.8 mm 5 0.001% @ 546 nm 65 $ Request
240-5660 neutral density color glass 50.8 x 50.8 mm 6 0.0001% @ 546 nm 66 $ Request

Material neutral density color glass
Surface quality
60-40 scratch & dig (MIL-PRF-13830B)
Surface flatness 1 λ per inch @ 633 nm
Parallelism 3 arcmin
Diameter tolerance +0.0/-0.2 mm
Clear aperture 90% of diameter
Design wavelength 450-650 nm
Optical density tolerance +/- 5% of density

EKSMA Optics Neutral Density Absorption Type Filters
98.82 kB
download PDF

EKSMA OPTICS neutral density (ND) filters attenuate VIS spectral region. The optical density varies from 0.1 to 3.0, 1 or 2 inches size square and roud shapes are available.

Neutral density absorption type filters decrease the intensity of light without altering the relative spectral distribution of the energy. They are used to filter the entire visible spectrum evenly, allowing light reduction, without influencing color or contrast. Attenuation is accomplished by using a light-absorbing glass.