|[Note Guidelines] Photographer's Note|
|Just arrived back home after a quick trip across the 'ditch' to Australia for my niece's 21st birthday. While there I took the opportunity to visit the Melbourne Zoo. This interesting character is in the reptile house, behind glass, hence the high ISO. I forgot to note down what he is, so if anyone can ID him, I would appreciate it. Thanks for looking.|
Reptiles are tetrapods and amniotes, animals whose embryos are surrounded by an amniotic membrane, and members of the class Sauropsida. Today they are represented by four surviving orders:
* Crocodilia (crocodiles, gharials, caimans and alligators): 23 species
* Sphenodontia (tuataras from New Zealand): 2 species
* Squamata (lizards, snakes and amphisbaenids ("worm-lizards")): approximately 7,900 species
* Testudines (turtles and tortoises): approximately 300 species
Modern reptiles inhabit every continent except for Antarctica, although their main distribution comprises the tropics and subtropics. Though all cellular metabolism produces some heat, most modern species of reptiles do not generate enough to maintain a constant body temperature and are thus referred to as "cold-blooded" or ectothermic (the Leatherback Sea Turtle might be an exception, see also gigantothermy). Instead, they rely on gathering and losing heat from the environment to regulate their internal temperature, e.g, by moving between sun and shade, or by preferential circulation — moving warmed blood into the body core, while pushing cool blood to the periphery. In their natural habitats, most species are adapt at this, and can usually maintain core body temperatures within a fairly narrow range. Reptiles are thick-skinned; unlike amphibians, they do not need to absorb water. While this lack of adequate internal heating imposes costs relative to temperature regulation through behavior, it also provides a large benefit by allowing reptiles to survive on much less food than comparably-sized mammals and birds, who burn much of their food for warmth. While warm-blooded animals move faster in general, an attacking lizard, snake or crocodile moves very quickly.
Except for a few members of the Testudines, all reptiles are covered by scales.
Most reptile species are oviparous (egg-laying). Many species of squamates, however, are capable of giving live birth. This is achieved, either through ovoviviparity (egg retention), or viviparity (babies born without use of calcified eggs). Many of the viviparous species feed their fetuses through various forms of placenta analogous to those of mammals. They often provide considerable initial care for their hatchlings.
Camera: Canon 20D
Time of day: 15:44 p.m.
Date: 5th May 2007
Weather conditions: Inside Reptile House
Lens: Canon 70-200mm F/2.8L IS USM
Extender: Canon EF 1.4X II
Filter: Hoya 77mm UV
Shutter Speed: 1/250
Focal Length: 98mm
External Flash: Canon 580EX Speedlite
Original file type: Digital Raw
ellis49, nglen, fiyo, SelenE, TAZ has marked this note useful
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- [2007-05-07 3:16]
The golden color on this iguana (?) is just gorgeous, Pam.
Well chosen POV to show the amazing features on the head and the flap on the throat, as well as all the spikes along the back. The scales are shown in very sharp details as well.
He looks like a golden statue. Beautiful.
TFS. : )
welcome hom, I hope you had a great time.
This id s fine picture of a wonderful iguana, the colours are amazing.
Great details and sharpness. I like the POV and the pose too.
Well done, my friend.
- [2007-05-07 4:30]
Hi Pam. What a good shot from behind glass. Great detail and sharp focus. with warm colours. It looks like he is use to having his photo taken. Great POV. well done. TFS.
Superb capture Pam, the black BG really highlights him. Details are absolutely fantastic. Its a joy to view. excellent work..
- [2007-05-07 8:38]
colors,lighting,POV,framing,sharpness and composition are perfect.TFS
- [2007-05-07 16:32]
You got a very good result despite of the glass, it looks as if there is nothing between you and the reptile.Very good details and colors. Well done and TFS
- [2007-05-08 4:15]
Woooooooow ! I love this unusual photo with this impressive reptile on its beautiful piece of wood.
The "++++++" : composition, subject, texture of skin, pose, wood, warm colors, sharpness, DOF, black BG, contrast, exposure, instructive note...
The "-" : nothing...
Congratulations my friend and TFS.
Good image again, Pam.
'Through glass' sharpness is okay. I like compo even with the cut-off tail.
Gee it looks like this guy is trying to pucker up! :o)
Great shot, great details of his skin. ( used to have one of these guys crawling around my house, was my sons!didn't have much company...ha ha) Thanks for sharing the photo.
- [2010-04-08 5:13]
Hello Pam, Interesting shot and let me tell you as you managed to shoot it very nice. Lovely shot and good image clarity and with nice lighting. Well done Ganesh