This has become lless important with the advent of Live View and UV-LED torches together which permit focusing directly in UV for many scenes. This would permit focusing in visible light before placing the dark UV-pass filter over the lens. Lens is corrected for focus shift between the Visible and UV wavebands. Although it must be noted that some UV-dedicated industrial lenses - designed for use with narrowband filters - are not corrected.
Lens is corrected for chromatic aberration in the UV range. The lens should reach to at least 310-300 nm. Other glass is sometimes used.Įlements, element glue and internal lens parts are non-fluorescing under UV light.
Elements are typically made from fluorite and/or quartz for higher transmittance. Transmittance is (usually) an even 60-70% or more across the lens range. The next section will discuss the alternative: less expensive, non-UV-dedicated, UV-capable lenses.įor the record, here are some characteristics of a UV-dedicated lens suitable for reflected UV photography. Such lenses are very expensive and out-of-reach for most who want to try shooting UV. One of the most familiar UV-dedicated lenses is the UV-Nikkor 105/4.5. A UV-dedicated lens is one which was designed and manufactured specifically for reflected UV photography. There are UV-dedicated, UV-capable lenses and ordinary lenses. Or write to rudbeckia ultravioletphotography com. on with any corrections, additions or suggestions. Thanks to everyone for their suggestions, comments, proofreading, lists, links, measurements, experiments and all round good fellowship.
This Sticky began as a joint effort by the members of various forums who enjoy UV/IR photography. Sticky :: White Balance in UV/IR Photography Sticky :: UV Photography: Cams, Mods, Lights, Links Sticky :: UV Induced Visible Fluorescence
Last Update :: 15 April 2021 :: UV-Capable Lenses section is being rewritten.