Circular Variable Neutral Density Filters
|Diameter tolerance||+0/-0.1 mm|
|Inner diameter||8.0 mm|
|Surface quality||60-40 S-D|
|Surface flatness||<λ @ 632.8 nm|
|Parallelism error||<3 arcmin|
|Protective chamfers||<0.25 mm x 45°|
|Operating wavelength range||380 nm - 2000 nm (BK7)
250 nm - 2500 nm (UVFS)
|Mounting||Black anodized aluminum|
|Eeconomical solution to attenuate light|
|Comes with holder as one set|
|Altechna metrology lab applies following product inspection:|
|Visual inspection – surface quality evaluation according to MIL 13830 and ISO 10110 standards|
|Dimensions – measurement of geometrical dimensions, as diameter, thickness, etc.|
|Transmittance (Spectrophotometer, laser)*|
|Wavefront distortion (Interferometer)|
|Parallelism (Goniometer, interferometer)|
Polymer film First Contact™ is a unique product designed for laser optics protection, preservation and cleaning. For all sorts of optical items it serves as a protection layer from damages during shipping, long term storage, environment changes, etc. and removes all dust and other contamination after the film is removed from the optical surface. It is absolutely safe for almost all types of optics and optical coatings.*
- Protects against scratching, abrasion, dirt, and water damage. Also protects against corrosion caused by water vapor, oxygen, and sulfur.
- Cleans the surface, removes particulates and organic contaminants.
- Leaves no residue.
- Leaves no hazardous waste.
- Safe to store for up to 4 years (period may be extended depending on storing conditions).
- Comes off in one piece.
- Does not lift metal from metal films.
- Safe with temperatures up to 200° C.
- Environmentally friendly
* Protective polymer cannot be used with optical components sensitive to acetate.
Price – 3 EUR per item (price includes coating service and polymer)
If you want to order protective coating please select "Optics Protection" in the catalog list.
Holding the sticker slowly peel the film starting from the edge. If necessary place the optic in its corresponding mount prior to removing the film.
Order your item
|Average transmission in VIS, %||Optical density range||Dimensions, mm||Substrate material||Wavelength range, nm||Delivery||Product ID||Price||Action|
|90 to 1||0.04 to 2.0||Ø25||BK7||380-2000||Request||1-CNFH-2-A025||286 $|
|90 to 0.1||0.04 to 3.0||Ø25||BK7||380-2000||Request||1-CNFH-3-A025||194 $|
|90 to 0.1||0.04 to 3.0||Ø25||UVFS||250-2500||Request||1-CNFH-3-B025||248 $|
|90 to 1||0.04 to 2.0||Ø100||UVFS||250-2500||Request||1-CNFH-2-B100||380 $|
|90 to 0.1||0.04 to 3.0||Ø100||UVFS||250-2500||Request||1-CNFH-3-B100||402 $|
|90 to 1||0.04 to 2.0||Ø50||BK7||380-2000||Request||1-CNFH-2-A050||210 $|
|90 to 1||0.04 to 2.0||Ø25||UVFS||250-2500||Request||1-CNFH-2-B025||246 $|
|90 to 1||0.04 to 2.0||Ø50||UVFS||250-2500||Request||1-CNFH-2-B050||267 $|
|90 to 0.1||0.04 to 3.0||Ø50||UVFS||250-2500||Request||1-CNFH-3-B050||275 $|
|90 to 0.1||0.04 to 3.0||Ø100||BK7||380-2000||From stock||1-CNFH-3-A100||287 $|
|90 to 0.1||0.04 to 3.0||Ø50||BK7||380-2000||From stock||1-CNFH-3-A050||218 $|
|90 to 1||0.04 to 2.0||Ø100||BK7||380-2000||From stock||1-CNFH-2-A100||267 $|
You can customise this product to your needs. If you do not find suitable specifications for your application please contact us for custom solution.Fill form
Order from stock
Choose from 4 Circular Variable Neutral Density Filters