Paramo de Guerrero, Boyaca

Very interesting. I posted a picture recently taken on Rollei infrared and the photo had a similar "light beam" effect. Beautiful location. You can see how that beam of light has illuminated the vegetation on the far shore. It's a great picture. What filter did you use?

I used a Hoya R72 (I believe it is the equivalent to a Wratten 89 B ??). It is the
most expensive piece of glass I've bought, looks like my conscience, but gets the
job done. I use it with the SFX and Rollei IR, and achieve nearly the same effect.

That is the filter I used, R72. I also rated the SFX at at 6 (+5 stops for the filter) but the negatives were very dense and probably overexposed. When I came to use the Rollei I only used +4 stops and this worked well when the infrared effect was there. When there was no infrared effect it was underexposed. I think it must have to do with how much red light is available but then again maybe my camera isn't very accurate. It is nearly 60 years old.

I had my R72 from when I was very keen years ago. As soon as I found I had it I had to buy some IR film.

Wow, super photograph Peter and amazing looking lake. The water seems to have a special quality either because of the film or because it is a glacial lake. Is this anywhere near a volcano?

Thanks Michael ! This is a typical South American highland ecosystem. The Paramo lies above the treeline, and has a unique vegetation, dominated by peatmoss and Espeletia (a relative of sunflowers with silver leaves). The lakes were carved out by glaciers and hold water from the constant rains, as the cloud from the Amazon condense here.

Wonderful FG to BG depth of this scene. Appears to be a very pristine environment too......Nice !