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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

Spectral Transmission

Spectral transmission graphs on this page were provided by Coastal Optical System. Graphs used by permission.

The exotic optical elements and 12-layer coatings of the Coastal Optics 60/4 UV-VIS-IR APO Macro lens provide an exceptionally broad transmission band not available in any other commercially available lens.

With the right filtration and the right camera and the Coastal Optics 60/4 UV-VIS-IR APO macro, just about anything can be photographed!

Buying filters

A great source for filters at competitive prices is our trusted sponsor, B&H Photo. Get filters at B&H Photo.

Fujifilm white paper

Those shooting Fujifilm infrared cameras might wish to read the Fujifilm white paper for the Fujifilm IS Pro, which discusses filtration.

Full range — UV through infrared (275 - 1500nm) Permalink

Even digital cameras modified for infrared use rapidly lose sensitivity beyond 1000nm (1 micron); the 60/4 easily exceeds that wavelength with minimal attenuati*on.

Ultraviolet range (275 - 400nm) Permalink

As with infrared, the transmission of the 60/4 APO macro extends far beyond the capabilities of any DSLRs on the market (even ones modified for ultraviolet use).