This Canon lens works well for UV photography to about 340nm.  With its simple construction, it passes UV much better than a complex prime or zoom lens.

The lens uses 52mm filters.  If needed, you can use a 52mm to 58mm step-up ring to mount 58mm filters to the lens.  We have the greatest selection of filter options in 58mm diameter.

 

 

Maximum format size	35mm full frame
Focal length	40mm
35mm equivalent focal length (APS-C)	64mm
Diagonal Angle of view	• 56.8º (full frame)  • 37.1º (APS-C)
Maximum aperture	F2.8
Minimum aperture	F22
Lens Construction	• 6 elements / 4 groups  • 1 aspherical element
Number of diaphragm blades	7, rounded
Minimum focus	0.3m
Maximum magnification	0.18x
AF motor type	• Linear Stepper Motor  • Full-time manual focus  • 'Focus-by-wire' manual focus
Focus method	Unit
Image stabilization	No
Filter thread	• 52mm  • Does not rotate on focus
Supplied accessories*	Front and rear caps
Optional accessories	ES-52 screw-in metal hood
Weight	130 g (4.6 oz)
Dimensions	68 mm diameter x 22 mm length (2.7 x 0.9 in)
Lens Mount	Canon EF