We just tested Coastal Optical 60 mm lens on our Nikon D800 for technical photography (visible, ultraviolet fluorescence, ultraviolet reflected, infrared) and infrared reflectography. This is an apochromatic lens in the range 310-110 nm. Indeed, the lens didn’t need any refocusing while shooting technical photos in the UV, VIS and IR region. It really resulted sharply apochromatic. Coastal Optical Apo Macro 60mm lens is a superb lens for visible and macro photography and consequently for UV fluorescence (UVF). At CHSOS we were more interested to evaluate its performance in UV reflected (UVR) and Infrared (IR) to spot any difference. The technical photos were comparable with those acquired with standard lenses but with the relevant advantage that no refocusing was needed. Another advantage of an apochromatic lens is that the creation of infrared false color images is straightforward since no registration is necessary between VIS and IR images. The lens was also checked for hotspots in the infrared and test data enriched the Infrared Photography Lenses Database. No hotspot even at the highest F-number was noticed.This property qualify this lens for infrared photography but also for panoramic infrared reflectography since it can be stopped down in order to increase the depth of field without causing hot spots. Of course, this is also a perfect lens for multispectral imaging (bandpass interferential filters). Its only drawback, very expensive.
No posts could be found that matched the specified criteria.