Here's a video about a motorcycle race up Pike's Peak in Colorado - shot entirely with an iPhone 4, and an article about it...
Tuesday, June 29, 2010
Thursday, June 17, 2010
Day for Night
Jay Holben has a nice article at DV.com on how to use natural lighting and your camera's white balance to achieve a nighttime look while shooting during the day:
That in mind, I decided to challenge myself to create a “night” look utilizing natural daylight — shooting day-for-night — without any augmentation with artificial lighting.And here's an article on why night is usually colored blue in the movies, from The Academia Dictionary via io9.
A day-for-night effect is, generally, achieved through gross underexposure. You’re rendering your highlights down to below middle gray and plunging your shadows into the abyssal blackness. Day for night works best when the natural light is backlighting the subjects and when you can keep the sky and the ground out of the shot — two things that will give away the cheat very quickly.
The Purkinje effect (sometimes called the Purkinje shift, or dark adaptation and named after the Czechanatomist Jan Evangelista PurkynÄ› ) is the tendency for the peak sensitivity of the humaneye to shift toward theblue end of thecolor spectrum at low illumination levels.
This effect introduces a difference in color contrast under different levels of illumination. For instance, in brightsunlight ,geranium flower s appear bright red against the dullgreen of their leaves, but in the same scene viewed atdusk , the contrast is reversed, with thepetal s appearing a dull red and the leaves appearing bright green.
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