also refer to

Short focal length focusing lenses

Microscope objectives for focusing laser beams in spatial filters. In holder with standard microscope thread or in special holder for compact spatial filter, with two lenses. Achromatic for the visible spectral range. Uncemented, broadband multilayer antireflection coated. Aperture ratio about f:3 or f:7.

focal length	clear Ø	for compact spatial filter				microscope thread
focal length	clear Ø	Ordernr.	Price 1 pc.	Price 2-5 pc.	Price 6-10 pc.	Ordernr.	Price 1 pc.	Price 2-5 pc.	Price 6-10 pc.
5 mm 10 mm 14 mm 20 mm 33 mm	1.5 mm 3.5 mm 2.0 mm 2.8 mm 4.0 mm	OML 2.3.05 OML 2.3.10	€ 678 € 678	€ 611 € 611	€ 577 € 577	OML 3.05 OML 3.10 OML 7.14 OML 7.20 OML 7.33	€ 738 € 738 € 738 € 738 € 738	€ 665 € 665 € 665 € 665 € 665	€ 628 € 628 € 628 € 628 € 628