4 inch Attenuation Filter
Category: Accessories
- Description
This attenuation filter is used to optimize measurements of highly reflective parts and helps produce good fringe contrast. The filter is positioned between the test part and a standard transmission flat.
Specifications: Quality: ≤ ?/10 Transmitted wavefront (PVr) Transmittance (4 in. filter) : 20 ± 4% @ 10° angle of incidence @ ?=632.8 nm through the pelicle
Ready to check out
Review the selected option and total at checkout.
Delivery to you
Allow time for the store to prepare your order before transit begins.
Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.
Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.
View policyTalking through a refund
Send the store your order number and the reason for your request.
Please contact us for the refund processing timeframe before returning an item.
View policyYour shipping options
Choose from the delivery options available for your address.
Standard Shipping · United States: $0.00
Express Shipping · United States: $3.99
View policyBefore you return a product
Check the conditions for your product before sending it back.
United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.
View policy
