MidOpt AC850 Acrylic Near-IR Longpass
AC850 is similar to AC800 IR Pass/Visible Block acrylic sheet except that it blocks further into the near IR. It is available both with and without scratch-resistant hard coating and is very well suited for use with 880nm and 940nm LED illumination, or in situations where visible light emitted by arc/flash lamps needs to be blocked while near-IR light is passed. AC850 material is custom cut from 3mm thick sheets according to customer requirements and is supplied with a removable protective overlay material. Orders for AC850 material are most often shipped “next day”. Other thicknesses are available on request.
*Not available in 1mm thickness or standard 25.4™ C-Mount option. For filters thicker than 1mm, we offer an alternative mounting solution that has an overall thickness of 5.5mm. This mount can accommodate filters up to 3.5mm thick.
MidOpt AC850 Acrylic Near-IR Longpass Technical Characteristics
*Filters 62mm and greater have a surface quality tolerance of 60/40.
MidOpt AC850 Acrylic Near-IR Longpass Transmission Chart
MidOpt AC850 Acrylic Near-IR Longpass Transmission Data
MidOpt AC850 Part Numbers:MidOpt AC850-25.4
MidOpt Filter Mounting Options
Midwest Optical Systems offers filters in the following standard mounts. Most filters have both male and female threads to enable the ability to stack filters. For specific questions, please contact Machine Vision Direct.
- Designed for lenses with filter threads, a variety of filter types and stock threaded sizes are available: M13.25-M105
- Larger sizes, 62mm to 105mm, are made to order and are not returnable
- Custom thread sizes are available upon request
- Black anodized aluminum rings
- Rotating mounts with locking thumb screws are available upon request and come standard with Polarizing Filters
How to Order
To order a filter with a threaded mount, first select a filter (e.g. BP470) and add the mount size (e.g. M27) to build your part number (e.g. BP470-27). For help building your filter part number, visit an individual filter page.
Thread Dia x Pitch
|Part Suffix||Outer Diameter||Clear Aperture|
|M13.25 x P0.5||-13.25||14.4||10.6|
|M22.5 x P0.5||-22.5||24||18.5|
|M25.5 x P0.5||-25.5||27.5||21|
|M27 x P0.5||-27||29||22.5|
|M30.5 x P0.5||-30.5||32.5||25.5|
|M34 x P0.5||-34||36||29|
|M35.5 x P0.5||-35.5||37.5||30.5|
|M37 x P0.75||-37||39||31.9|
|M37.5 x P0.5||-37.5||39.5||32.5|
|M39 x P0.5||-39||41||34|
|M40.5 x P0.5||-40.5||42.5||35.5|
|M43 x P0.75||-43||45||38|
|M46 x P0.75||-46||48||41|
|M48 x P0.75||-48||50||43|
|M49 x P0.75||-49||51||44|
|M52 x P0.75||-52||54||47|
|M55 x P0.75||-55||57||50|
|M58 x P0.75||-58||60||52.9|
|M62 x P0.75||-62||64||57.1|
|M67 x P0.75||-67||70||61.8|
|M72 x P0.75||-72||75||66.9|
|M77 x P0.75||-77||80||71.9|
|M82 x P0.75||-82||85||76.8|
|M86 x P1.0||-86||89||80.8|
|M95 x P1.0||-95||98.2||89.9|
|M105 x P1.0||-105||109.8||100|
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.