Polarizing Sunlight Photo Contest on Lenzr.com Polarizing Sunlight photo contest is perfect for winter and is, in all honesty, one of the most difficult photography assignments ever loaded onto the Lenzr website. Special equipment is required - a polarizing filter.

Polarization filters help photographers shoot landscapes in the great outdoors - these filters are only allow light coming straight-on into the camera to reduce glare and sheen on reflective surfaces, like a shiny steel building or the setting sun in a pool of water. A polarizing filter is able to minimize the sun's glare by only accepting photons that are traveling straight into the lens.

The Lenzr Judges will seek submissions that demonstrate the use of the photographer's tool. And these same people are strongly discouraged to award any points for pictures that have been photo shoped

The prize for this contest is solar powered backpack. The contest is sponsored by Solarline solar panels. Good luck! Winner announced March 1, 2012.

Toronto dentist, dental habits

The Good Dental Habits photo contest is set to gather and display a bank account of user submitted images that share the secrets to maintaining white smiles for a lifetime.

There are plenty of ways to take good care of your teeth and a great many that don't involve a toothbrush or floss. This contest is making a visual repository of ideas to help all humanity that can be found on the Good Dental Habits page on Dr Archer's blog.

Some cool visual ideas might include washing mouth with sea salt / baking soda

or my favourite example is the athlete wearing a bright coloured mouth guard to sports practice. Try to capture it on camera for your chance to win.

The prize is an Apple iPad 2, courtesy of Toronto dentist Dr. Natalie Archer, a family dental practice in downtown Toronto that's committed to proactive and protective dental care. This contest has been extended until March 1, 2012, when the winner of the iPad will be announced. Good luck!