Female Oriental Garden Lizard

This Female Oriental Garden Lizard (Calotes versicolor) was photographed using Canon EF 400mm f/5.6 L USM & 24mm extension tube set.
It is an agamid lizard found widely distributed in Asia. It has also been introduced in many parts other parts of the world. It is an insectivore and the male gets a bright red throat in the breeding season leading to a incorrect name of Bloodsucker. These lizards can change their colours, quite rapidly, but not as rapidly as chameleons.

Oriental Garden Lizard also known as Changeable Lizards are usually a dull brown, grey or olive with speckles or bands, but can can be seen in other colours such as bright green. These colour changes may reflect their moods. During the breeding season, the male’s head and shoulders turns bright orange to crimson and his throat black. Males also turn red-headed after a successful battle with rivals. Thus their other gruesome name of “Bloodsucker Lizard”. But they don’t actually suck anybody’s blood! Both males and females have a crest from the head to nearly the tail, hence their other common name “Crested Tree Lizard”.

Changeable Lizards are related to iguanas (which are found only in the New World). Unlike other lizards, they do not drop their tails (autotomy), and their tails can be very long, stiff and pointy. Like other reptiles, they shed their skins. Like chameleons, Changeable Lizards can move each of their eyes in different directions.

Changeable Lizards eat mainly insects and small vertebrates, including rodents and other lizards. Although they have teeth, these are designed for gripping prey and not tearing it up. So prey is swallowed whole, after it is stunned by shaking it about. Sometimes, young inexperienced Changeable Lizards may choke on prey which are too large. They are commonly found among the undergrowth in open habitats including highly urban areas. The lizards were introduced to Singapore from Malaysia and Thailand in the 1980s.

Breeding: Males become highly territorial during breeding season. They discourage intruding males by brightening their red heads and doing “push-ups”. Each tries to attract a female by inflating his throat and drawing attention to his handsomely coloured head. About 10-20 eggs are laid, buried in moist soil. The eggs are long, spinde-shaped and covered with a leathery skin. They hatch in about 6-7 weeks. They are able to breed at about 1 year old.

Role in the habitat: Changeable Lizards control the population of their prey. In turn, they are food for predators higher up in the food chain.

Status and threats: The Changeable Lizard is relatively common and found in a wide range of habitats. They appear to adapt well to humans and are thus not endangered.

When you enlarge images to view larger on this blog, you might notice exif information about the photo at the bottom of the image. I am in the process of changing all my images exif display option from YAPB engine to Exif & Zoom engine as I can use newly acquired PHP5 capability for this blog. You might notice that few images may not load correctly during this process. I have also incorporated GPS information with the images in their exif using the excellent Jeffrey’s “GPS-Support” Geoencoding Plugin for Lightroom

Please tell me your impression on this change.

Canon announced that it will release a firmware update for the EOS 5D Mark II allowing users to manually control exposure when shooting video. The new firmware will be available for download from 2 June 2009 on Canon web site. Following the launch of the EOS 5D Mark II in September 2008, Canon’s Research and Development team has listened closely to customer feedback to develop additions to the camera’s movie recording functionality.

Allowing EOS 5D Mark II owners to achieve even more stunning video results with the camera, the firmware update will include the following manual controls when shooting video:

• Full aperture selection
• ISO speed: Auto, 100 – 6400 and H1
• Shutter speed: 1/30th – 1/4000th second

The EOS 5D Mark II integrates full HD movie capability into a high-end 21.1 Megapixel camera; opening a multitude of new possibilities for photojournalists and news photographers. Since its launch the camera has proved its appeal to professionals working in diverse fields, from studio and wedding to nature and travel. Now, following customer feedback, Canon has improved functionality for professional video users, further unleashing the potential of the EOS 5D Mark II for cinematographers and photographers alike.

Disappointing news is that there is no news about 24p option to record movie.