Fuente Osmeña revisited with IR72

As soon as I received the Haida IR72, I scheduled a visit to Fuente Osmeña the following day. The Haida IR72 filter is so much better than the Haida IR85. It allowed me to take photos at 10 to 30 seconds exposure compared to the 5 -6 minutes with the IR85. With the shorter exposure time and lower ISO (100 to 200), I was able to get cleaner and sharper images. Another benefit with the IR72 is the available “false colors” you get during post process.
Fuente Osmeña in IR
Fuente Osmeña under a different light spectrum

For the past few days I have been experimenting with the Haida IR85 (IR850) filter. It’s just too dark for my camera. At ISO100 I need to reach 5 to 6 minutes exposure time just to get a decent exposure. Even though the photo was taken at ISO100 under noon time sun, the long exposure of 5 to 6 minutes introduced another problem – hot pixels. I’d rather have digital noise caused by high iso settings than hot pixels. Why? Because digital noise can be controlled using a noise reduction program like Noise Ninja. While the hot pixels are too big that noise reduction programs can’t get rid of them.
The photo above
Exposure: 240seconds
Aperture: f/5.6
Focal Length: 17 mm
ISO Speed: 400
Haida IR85 Filter
Canon EF 17-40 f4 L
Canon EOS 450D
Photo taken: July 8, 2011
Place: Fuente Osmeña








