720nm infrared (false-color development)

This photograph is a 16:10 ratio crop, 12048 x 7530px (90,7MP), of this panorama:

www.flickr.com/photos/197010762@N05/52540065298/in/dateta...

..to get more of the details :)

 

And btw, regarding the dreaded IR HOTSPOT and SHARPNESS:

The Tamron 10-24mm unfortunately has a rather nasty IR hotspot at 10mm, but it gets less with increased focal length to the point where it's acceptable at 24mm, yet not totally gone (as one can see). So I basically use this lens only at 24mm for IR.

My tests also showed that peak sharpness on the near infrared spectrum is at f/6.3, so consequently that's what I exclusively use it with. This is also beneficial in terms of the hotspot, which is usually less pronounced / more diffuse at a wider aperture.

 

 

Nikon D90 (APS-C, fullspectrum mod)

Tamron 10-24mm f/3.5-4.5 Di ll VC HLD

Hoya R72 (720nm infrared pass-filter)

ISO200, 24mm, f/6.3, 0,8sec

(so 36mm FX equivalent focal length)

tripod with panorama head, remote

Done