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Looking For a Custom Optical Solution? Enquire

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.

Focal Length (@587nm):
Surface Quality:

BK7 or equivalent
± 0.25mm
± 5%
<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.

7 Items

Name Focal Length (mm) Diameter (mm) Centre Thickness (mm) Form Material Coating Toughened Price Buy
LSQ8575 85 75 25.2 Planoconvex AR coated 400-700nm Toughened
LSQ200100 200 100 17 Planoconvex AR coated 400-700nm Toughened
LSQ250114 250 114 18.2 Planoconvex Uncoated Untoughened
LSQ250150 250 150 30 Planoconvex Uncoated Untoughened
LSQ350150 350 150 24 Planoconvex Uncoated Untoughened
LSQ500150 500 150 17.5 Planoconvex Uncoated Untoughened
LSQ500250 500 250 38 Planoconvex H-K9L Uncoated Untoughened

7 Items


Condenser Lenses

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Focal Length (mm)
Diameter (mm)
Centre Thickness (mm)