Examples in Infrared


Coastal Optics 60mm f/4 UV-VIS-IR APO MACRO

Full review of the Coastal Optics 60mm f/4 UV-VIS-IR APO MACRO is found in DAP.

This section shows photographs taken with the Coastal 60/4 APO macro in infrared.

See also the following 2008 blog entries: Jan 16, Jan 18, Jan 23.

Because most cameras converted for infrared have had their focus adjusted for “average” lenses that strongly backfocus (focus behind what is seen in visible light), the Coastal 60/4 can front-focus on some cameras since it has zero focus shift from UV through IR. This means that accurate focus might require some trial and error (shoot, zoom in on the camera LCD, adjust focus, etc). The author’s Canon EOS 5D-IR suffers from this problem but his Nikon D70-IR does not.

The performance seen in infrared is limited largely by focus accuracy (and sensor digital artifacts and Bayer interpolation). It’s a shame that a monochrome sensor is not available to exploit the stunning sharpness of the 60/4.

 

 

 

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Examples

Examples below are all in infrared.

Red Barn. Nikon D70-IR
Hiker. Nikon D70-IR
Cliff and Ocean. Nikon D70-IR

It just doesn’t get any better than the level of detail seen in the next two images. Careful attention was paid to focus, and even though the 60/4 was stopped down beyond its optimal f/5.6 aperture, the results are still stunning. Click to see actual-pixels crops.

Miners food (Death Valley, CA). Canon EOS 5D-IR
Mining Death Valley. Canon EOS 5D-IR
Tools of the trade. Canon EOS 5D-IR
Ice in infrared false color. Nikon D70-IR

 

Moon and Plane. Nikon D70-IR
Moon and Plane. Nikon D70-IR
Beach. Nikon D70-IR
Trees. Nikon D70-IR
West Alpine Road. Nikon D70-IR

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