Infrared ridge (720nm b&w)

I captured this in April on a more or less IR telephoto focused hike, the conditions were "interesting" - after a snowfall, pretty cold and very windy! So much so that the wind turned out to be the primary challenge that day.

I use a generic foldable rubber hood on my 77mm IR filter, it's nice and deep but also heavy and catches the wind almost like a sail, so unfortunately at least half of the photos done out in the open were blurry due to the wind janking on my rig. I tried shielding and standing really close to it, but there is really just so much one can do.

 

It took a whole while, but finally, I managed to produce an image that credits the 80-200mm f/4 AI-S, showing that it is as good of a performer on the IR spectrum as it is for visible light. *big fan* I like this panorama, cause I think there is something in it that only IR can offer, or maybe IR + (Nikon) vintage glass?

Also did this cumbersome 180° switcheroo thing again here too, but that's just a technical aspect of course.

 

 

The source for this is a 9-piece pano, portrait orientation, 20935 x 4268px, ~89,4MP, but I could only use 4 cause of the strong gusty wind and the extended shutter speed (sky, rock and coniferous forest don't reflect too much), yielding just 9136 x 4193px, 38,3MP.

 

Nikon D90 (APS-C / DX, fullspectrum mod)

Nikon Zoom-NIKKOR 80-200mm f/4 AI-S

Hoya R72 (720nm infrared pass-filter)

ISO250, 200mm, f/8, 1sec

(thus 300mm full frame equivalent)

tripod, regular 3-way head, remote (ML-L3)

Done