# What is the distance of 5.5 mm in focal length?

No. Architectural photography requires control over converging vertical lines. Anytime you shoot a building and don't hold the camera perfectly perpendicular to the building's surface, the vertical... Read More »

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## What does a cameras focal length mean?

I just sent mine back to Nikon the zoom stopped working as well of some of the buttons on the rear panel. Never dropped it or damaged it in anyway. Other than that...a great camera...such a wide ra... Read More »

## What is the focal length of a mirror?

The distance from the center of a mirror to the focal point is the focal length. The focal point is the point along the central axis (a line perpendicular to the center of the mirror) where light t... Read More »

## What is the focal length of a plane mirror?

The focal length of a plane mirror is infinity. The focal length of a spherical mirror is determined from the radius of curvature R as f = R/2. A plane mirror has an infinite radius of curvature, s... Read More »

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