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Articles Table of Contents   Page 1: Overview Page 2: Optical Performance Page 3: Apochromatic Behavior Page 4: Hot Spot Issue Page 5: Examples in Color Page 6: Examples in Infrared Page 7: Examples in Ultraviolet Page 8: Lens Designer Notes Page 9: Spectral Transmission Page 10: Conclusions

Examples in Ultraviolet

This section shows photographs taken with the Coastal 60/4 APO macro in ultraviolet light, or at least an attempt at it: I do not have UV-capable camera.

The example below shows the Nikon D3 using the Coastal 60/4 with the Baader “Venus” filter (original). Chances are that some of this is UV, but a lot of it might be infrared— hard to say.

UV-capable lenses

If the aim is to shoot ultraviolet, there are several other options. Here are a few:

• Coastal Optics 105/4.5 APO macro (250-650nm correction)
• Tochigi-Nikon UV-105/4.5, see the specifications. This lens is very similar to the original UV-Nikkor, perhaps even the same design.
  
• A used Nikon 105/4 UV-Nikkor

All of these options are more limited in spectral range than the Coastal 60/4 APO macro. They might not offer the same level of performance in other ways as well (flare resistance, color rendition, etc).