Night Photography

2/23/2012

Night Photography

•Star gazing

•City Scenes

•Countryside

•Anything!

Time lapse

•http://vimeo.com/36684976

Environmental Impacts

• Light pollution

• Airborn particles

http://userpage.fu-berlin.de/~kyba/photos.html

Weather

•Clouds

•Rain

•Fog

•Particularly along coast lines and other waterways

Human Vision

http://starizona.com/acb/ccd/advtheorycolor.aspx

Techniques

• Look off center

• Avoid bright lights

• Stay hydrated

• Avoid hypoxia

• Can be a factor as low as 5000’

• Effectiveness reduced by 25% at 8000’http://aviationknowledge.wikidot.com/aviation:night-flying-part-3-human-factors

Human vision to Digital Photography

•Sensor converts light into electrons

•2 varieties CCD and CMOS

•Both baby solar cells

•Electrons enter the cell and create a charge

•Charge is read by the camera to create the image

Getting light to the sensor

• Lens has an aperture

• Setting controls how far it opens measured in F stops

• Camera has a shutter

• Measured in fractional seconds to seconds

• “Film” has a sensitivity

• ISO 100-1600

Hands on activity

•Outside night photos

•Map reading after exposure to different lights

Observations

Post-Processing

•Photoshop

•Lightroom

•Gimp