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Knight Optical(UK) Ltd - [email protected] - +44 (0)1622 859444

Condenser lenses

What are you looking for in Stock?

Condenser lenses are used for concentrating light into a beam. Condenser lenses are typically used in enlargers, projectors and illumination lighting systems. This range of large condenser lenses have been optically polished and of high quality at very reasonable prices.

Our stock range of high quality planoconvex condenser lenses are available direct from this page with focal lengths between 250mm to 500mm and diameters between 114mm and 250mm.

Knight Optical also offer an extensive custom optic service thanks to our many years experience in the industry. We are able to supply bespoke condenser lenses up to 500mm diameter and more, designed to fit individual applications. For more information on our custom lens service, or to enquire about any of our other optical components, contact our technical sales team.

Material: BK7 or equivalent
Diameter: ± 0.25mm
Focal length (@587nm): ± 5%
Surface quality: <60-40 scratch/dig


  • Mounting options available.
  • Special AR coatings.
  • Stock lenses can be edged to smaller diameters.
  • Stock lenses can be reshaped to square/ rectangular apertures to fit your application.

Stock Optics

Get a Custom Quote

Part No. Focal Length
Centre Thickness
FormMaterialCoatingToughened Price
LSQ250114 25011418.2PlanoconvexUncoatedUntoughened £145.00
LSQ250150 25015030PlanoconvexUncoatedUntoughened £145.00
LSQ350150 35015024PlanoconvexUncoatedUntoughened £145.00
LSQ500150 50015017.5PlanoconvexUncoatedUntoughened £145.00
LSQ500250 50025038PlanoconvexH-K9LUncoatedUntoughened £245.00
LSQ200100 20010017PlanoconvexAR coated 400-700nmToughened £85.00
LSQ8575 857525.2PlanoconvexAR coated 400-700nmToughened £75.00

Get a Custom Quote

Get in touch

Our Multi-Lingual Sales Team are here to help with your requirments:

UK +44 (0)1622 859444
UK +44 (0)1622 850614
UK +44 (0)1622 851078
+1 401 583 7846

International Shipping

We are able to ship to most countries at good rates, please click here for more info.

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