Perspective control

During last night’s class the conversation touched on correcting perspective with tall buildings. While this can be addressed artificially with image editing applications such as Photoshop the most effective solution is with a perspective correction (PC) lens otherwise known as a Tilt/Shift lens. Most lenses move the lens further away from or closer to the sensor as a subject is brought into focus. A tilt shift lens allows the lens to be raised or lowered (shift) from the central position or tilted up or down or side to side (tilt).  The shift allows the photographer to correct perspective when photographing tall buildings. The shift was traditionally used to bring flat planes which are not parallel to the camera back to be brought into focus. Look up Scheimpflug Principle if you would like to learn about the science behind this.

Nikon 45 mm Tilt / Shift lens raised by 10mm

Nikon 45 mm Tilt / Shift lens raised by 10mm

 

Nikon 45mm Tilt Shift lens tilted down

Nikon 45mm Tilt / Shift lens tilted down

Lens tilting is also used to create the popular ‘toy town’ look. The stop-motion video below was created with such a lens on a normal digital camera. These lenses are very expensive but there are cheaper alternatives such as the LensBaby or you can make your own using old large format lenses.

 

Advertisements

~ by Nigel on November 19, 2014.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

 
%d bloggers like this: