The Long Tailed Macaque or Crab-eating Macaque as it's also known (Macaca fascicularis), can be found throughout Asia. The species vary in colour from light brown, brown through to grey. They are mostly arboreal meaning they are adapt to life in the trees. and can leap quite impressive distances of up to 5 metres. Like most monkeys they are quick and agile and quite difficult to photograph.
The challenge of photographing animals in the canopy is selecting the right shutter speed. When photographing quick moving subjects, you would usually favour a faster shutter speed but you also have the difficulty of filming in a dark shadowy canopy environment where the light is low and often the air is humid. (another challenge in itself) There has to be a compromise, (as with most things in photography.) I tend to favour a slightly higher shutter speed and compromise on under exposing my images, knowing I can make the adjustments I need in photoshop if necessary. As long as you capture the image in focus, then you can often work around you lighting issues. Of course that's not to say that you can't wait for your moment either. This monkey was photographed in Borneo Malaysia. Monkeys do have moments when their natural behaviour causes them to stop for a second of two. Like foraging or eating or in this case preening himself. The moment doesn't last long but it's a great opportunity. I particularly like the background of this image, how the curving circular branches, which are out of focus, frame the monkey in the foreground. His sitting position is also quite amusing with his legs crossed. They are very intelligent and quite bold, not unfazed at all by human presence. The IUCN Red List Category & Criteria is of Least Concern.