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PhotoCritique [Translate]

Greenie Silver Note Writer [C: 3 W: 2 N: 17] (74) [2007-11-27 18:05]

Hi Aytul

Great photo! The contrast with the green body and rusty head really draws you ino the photo. Great macro use and DOF.


Greenie Silver Note Writer [C: 3 W: 2 N: 17] (74) [2007-08-10 15:11] [comment]

Hi Maertens

This little guys is a red-eared slider turtle and is actually a bit of a pest in many places around the world. I imagine that they have been introduced to your areas as well in Venice and may well have displaced a native species if they have been there for some time. Some general information on the species which I extract from our local environmental security website here (

The red-eared slider is a freshwater turtle with a distinctive red stripe behind the eyes, which fades as the animal ages. The turtles have many narrow stripes on the shell, and males have extremely long, narrow claws.

The red-eared slider retracts its head straight back into the shell. Red-eared slider turtles grow to around 30cm in length, although hatchlings may only be about the size of a fifty-cent piece.

The turtles have a life span of around 40 years, and are prolific breeders. After a single mating, female turtles can continue to lay up to 70 fertile eggs per year for five years.

A native of the Mississippi Valley area of the United States, the turtle is now a well-established problem in many parts of the world. It has been nominated among 100 of the ‘World's Worst’ invaders by the World Conservation Union, and is considered a major threat to biodiversity.

The turtle is very aggressive, and will out-compete native species for food and space in our waterways and lake systems. Large specimens can inflict a painful bite.

Greenie Silver Note Writer [C: 3 W: 2 N: 17] (74) [2007-08-10 14:41]

Hi Paul

Great shot, nicely composed. I like the emphasis on the rocsk in the foreground which is offset by the lighter cliffs in the background. I might have cropped this a bit more from the left and bottom but only slightly and this is probably just personal taste. I found the sky/clouds behind Hen Cliff a bit overexposed but I guess that will happen when you're looking at a long exposure like this. I'd be interested to hear from you (or others) how you might compensate for these bright spots as I'd imagine adjusting brightness and contrast for entire image will just result in a darker foreground. A small detraction were the dust spots or sea spray on the image which could have been cloned out in post-processing.

Thanks again

Title: The farm
The farm (60) *
Javid (56)


Greenie Silver Note Writer [C: 3 W: 2 N: 17] (74) [2007-08-10 14:32]

Hi Javid

Like many others I came across this stunning photo of yours on the main page. I thikn that you've captured the range of colours in this shot fantastically but the feature that stands out for me is the balance in the photo. There is a good mix of the foreground (horizontal fields with contrasting black and yellow tones) then the alternating greens and brown that lift you through the photo before the yellow patch at the top of th ehill leads you into the low clouds.

Really great shot, thanks for sharing (even though it was some time ago now) - that is the beauty of photography it is timeless.


Greenie Silver Note Writer [C: 3 W: 2 N: 17] (74) [2007-03-09 21:39] - [workshop] [compare] [+]

Hi Laurent

I nice pose of the chaffinch but the strength of the image is diminsihed by the branch in the foreground as well as the shadow that falls on the bird as a result.

I have posted a workshop on this (using the first workshop posted by Paul as a starting point) to get an idea of what the image might have looked like without the branch and shadow


Greenie Silver Note Writer [C: 3 W: 2 N: 17] (74) [2007-03-06 9:46] [+]

Hi John

This is an interesting subject matter and the tree looks to be pretty big with the background (and tree undoubtedly) spreading off the back of the frame.

I think that using a wider depth of field would have given the view an idea of how far these rings actually went out from the core of the tree (I was thinking of around another 6 odd rings being in focus). I also found the darker corner bottom right to be a bit distracting especially since it was so close to the core.


Greenie Silver Note Writer [C: 3 W: 2 N: 17] (74) [2007-03-06 9:32] [+]

Hi Luc

In my view this shot could have been improved by using a better DOF which would have retained much of the bracket fungus in focus. I would also have tried to get a tighter crop on the composition or remove the distracting clover in the foreground. This might still be possible if you crop the image slightly.

It is an impressive set of fungi all stacked up together like this, I've normally only seen them as single brackets.

Greenie Silver Note Writer [C: 3 W: 2 N: 17] (74) [2007-03-06 9:26] [+]

Hi Niek

Just a couple of comments on the rhino. I also think that the shot is a bit dark but the composition is good. Ferran's workshop has done a good job in my mind.

A couple of comments in addition to those from loot about the species and the shape of the horn. I am 99.9% certain that this is a southern white rhino Cerototherium simum simum as the northern subspecies are in dire straits at the moment. With CITES regulations at present I imagine that a very good case would have to be made to relocate any individuals of the northern subspecies.

With regards to the horn shape. I have a possible explanation that might account for this. As Loot mentioned the horn is made of keratin (same as our fingernails). You will notice on the posterior horn that there is a small notch on the front of the horn where it beginds to bend.

As is often the case with rhino in captivity they tend to rub against various objects in their immediate surroundings. You woudl be able to confirm this but I am pretty sure that there are some heavy duty wire cables making up part of the rhino enclosure at the zoo. What has potentially happened is that the rhino has been rubbing his horn against one of these wires to such an extent that it has worn away the horn at this point. I imagine that although the horn is continually abraded here the part of the horn to the rear of this point still continues to grow effectively pushing the horn up and over in a forward angle.

I hope this helps.


Greenie Silver Note Writer [C: 3 W: 2 N: 17] (74) [2007-02-26 8:52]

Hi Gerhard

Great shot, the reflection of the wasp really balances the image well and the macro on this is superb. I was wondering whether it might have been possible to remove some of the ghosting in the reflected image by using a polarising filter, then you wouldn't have the second reflection being cut off at the bottom of the frame.

TFS & Cheers

Greenie Silver Note Writer [C: 3 W: 2 N: 17] (74) [2007-02-01 7:07]

Hi Willem

The colours in the shot are rather muted but as you say it was an overcast day so there is not much one can do about that. What I like about the shot is that you have captured the vigilance of the waterbuck by managing to get the water still dripping from the bulls mouth as he turned to investigate the potential threat. For me this is one of the features of this shot, well done. This said perhaps if the short was in landscape view with a bit more of the landscape to the left in the direction the bull is looking in it might have made this vigilant posture more expressive, just in my opinion.