Grab Box

Rummage through and choose whatever you like.

We offer any item from our grab box stock list for EUR 10,- / pc plus transport costs of 19,50 per delivery (within Germany) if the value of your order falls below EUR 50,-.

Please send a request with your required items.

Note: This list is not updated in real-time. We do not guarantee stock amounts.

Quality Assurance

We take quality control very seriously: we rely on accurate, widely recognized measurement systems for testing our optics. The following table indicates the accuracy of measurement for the most relevant parameters.

Surface figure: λ/20
Angle: 0,5 arcsec
Radius: 0,01%
Focal length: 0,03%-0,3%
Centration: +/-0,2µm or +/-2 arcsec
Wavelength: +/-0,3nm (190-1100nm)