Double-convex Lenses (DCX)
Double-Convex lenses are lenses which have two outward curving faces. Their faces may be symmetric or they may have one curve sharper than the other.
Double-Convex Lenses have a positive focal length (F.L.) and will act as a mgnifying or condensing lens.

ITEM
Diameter
Focal Length
ITEM
Diameter
Focal Length
#3501
38mm
50mm
#3531
50mm
50mm
#3502
38mm
100mm
#3532
50mm
100mm
#3503
38mm
150mm
#3533
50mm
150mm
#3504
38mm
200mm
#3534
50mm
200mm
#3505
38mm
300mm
#3535
50mm
300mm

Double-concave Lenses (DCV)
Double-Concave lenses have two inward curving surfaces, nagative focal length (F.L.) and act as reducing or dispersing lenses.

ITEM
Diameter
Focal Length
ITEM
Diameter
Focal Length
#3602
38mm
-100mm
#3632
50mm
-100mm
#3603
38mm
-150mm
#3633
50mm
-150mm
#3604
38mm
-200mm
#3634
50mm
-200mm