UV/IR-Cut Filter 400-700nm Rectangular=25mm*33mm Thick-2.0MM +AR Coating For Astronomy Photography 1PCS
Product description
High-quality short-wave pass filter has the advantages of wide cut-off bandwidth, deep cut-off depth, high conversion steepness, and high transmittance. It can be widely used in fluorescence excitation spectrum measurement, Raman spectroscopy applications, spectral grouping applications, and astronomical observation applications, etc. It can also be widely used in imaging optical systems and machine vision system applications to eliminate interference light outside the available band. Improve imaging clarity and system sensitivity.
The UV/IR-CUT filters are designed to block ultraviolet and infrared wavelengths and to capture the luminance in monochrome cameras. Also, this filter is needed to cut off unwanted wavelengths in colour cameras which are sensitive to these radiations. Using one shot colour cameras without these filters will cause unnatural colour balances.
Optical index
Size(Dia.T.): 25mm*33mm
Center wavelength: CWL 700nm
Transmission band: 400~680nm
Cut-off band: 750~1100nm
Material: UV Fused Silica
Transmission wavefront error: λ/4 @ 633 nm
Parallel difference: <30 arc seconds
Surface finish: 40-20
Diameter tolerance: +0.0/-0.1mm
Thickness: 0.3mm/0.55mm/0.7mm/1.1mm/2.0mm ±0.05mm
Center wavelength tolerance: ±1%
Transmittance T: Tavg>90%
Cut-off zone depth: OD4
Cut-off band steepness: <1%
Effective aperture: >90%
Incident angle: 0°
Package
Rectangular 25mm*33mm Thickness 2.0 mm UV/IR Cut Filter 1PCS.
Shipping rates for orders shipped internationally
Standard Shipping from China/Hong Kong/Taiwan to worldwide.--- （Delivery time:11~35 Days ）---（Some countries need more than 40 days）
If you need (2-5 days) Fast delivery, please select Express (EMS, FedEx, UPS, DHL). --- (need to pay freight)
Shipping
We ship within 1~2 business day once payment completed.
Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility.
Please check with your country's customs office to determine what these additional costs will be prior to buying.
Please ensure address information with your payment, Please check your full name and full address (Post Code and phone number is very important for International delivery)
Shipping detail warning notes!!
If the product is contrary to local customs regulations.please think over again if you really want to buy it before purchase and buyers have the duty to custom clearance.
Russian Buyer should leave your full name or may put you in trouble.
Argent Buyer can only buy twice per year oversea and beyond 25 USD should pay 50% taxes.
European Buyer need EORI Number Especially German.Please leave your EORI NO. when purchase ship in Express.
Brazil Buyer need VAT Number when ship in Express.
Saudi Arabia Buyer ship in Express need a copy file of the recipient of the valid identity (take a clear photo and upload it in leaving a note for me to print out) etc.