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The term 'aliasing' is a general term applied to signal processing. It refers to an effect that causes different signals to become indistinguishable (or aliases of one another) when sampled. In imaging, it's often observed as 'jaggies', which appear as steps along what should be a continuous line or edge. These are caused by pixel structure. Aliasing can also produce moire, when fine lines appear to ripple due to the interference.
In 2012, in Australia and all over the world, the bottom fell out of the compact camera business, with sales dropping in volume terms by up to 50 percent.
Photographers typically recognise three types of image noise: fixed pattern noise, random noise and banding noise.
A tutorial on how to shoot dramatic "Fire Dice" images.
‘Your photography is a record of your living for anyone who really sees.' Paul Strand.
Gavin Phillips shows how to use HDR imaging to create superb images with fine detail, perfect lighting and accurate colours.
Divine Twilight, Queensland, Australia
Award-winning Australian photographer Ken Duncan shares some fundamental landscape shooting tips, giving some insight into his stunning panoramic images.
The lens in a camera is like an eye that lets light into the camera body and focuses it on the sensor, where the image is recorded. The larger the optical components (known as ‘elements') in the lens, the more light gets in. The quality of the elements influences the camera's picture quality...
Photography Gallery
Hong Kong street that looks like a mosquito
Competitions
Photo Review Newsletter Competition
For your chance to win a great Lowepro/JOBY prize pack, simply sign up to receive the free Photo Review Newsletter and correctly answer a simple question (ends Wednesday 31st July 2013)
PR53 Photo Challenge: Waves
Waves. They’re all around us. Sometimes they’re obvious and sometimes they’re very subtle indeed. And, once again, our loyal Photo Challengers tackled the topic with their usual enthusiasm and creativity.
PR52 Photo Challenge: One
The ‘One...’ challenge arose from an exercise photographer Paul Gummer (Photo Review, Issue #52) often sets for his students; namely to photograph a single object against a plain background.
Manfrotto Prize Pack Competition
For your chance to win a great Manfrotto prize pack, simply sign up to receive the free Photo Review Newsletter and correctly answer an eligibility question by Tuesday 26th February 2013.
PR51 Photo Challenge: Portals and Thresholds
For our Portals and Thresholds challenge, we asked photographers to capture an opening that might provoke a viewer to wonder where looking or even stepping through might lead.
PR50 Photo Challenge: Summer Postcard
The idea of the Summer Postcard challenge was for photographers to create imagery that would in some way capture the feeling of summer – in a postcardy sort of way.
PR49 Photo Challenge: Tools of the Trade
Our ’Tools of the Trade’ challenge was inspired by the editor’s encounter with a well-worn old brace-and-bit, and in particular with how evocative it was of his long dead grandfather.
PR48 Photo Challenge: Habitat
The habitat challenge asked photographers to go out into the world and photograph people in, as we said at the time, what might be described as their native environment.