Download - Night photography
Night Photography
2/23/2012
Night Photography
•Star gazing
•City Scenes
•Countryside
•Anything!
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