2011 α Lens and Lens Accessory Brochure and Specifications
Page 6
...-angle lenses with subjects that angle of view is at close to get the desired details in perfect focus. The "Focal length vs. Perspective With long focal lengths, foreground and background objects will often appear to fill the frame. Another way of saying this relationship... would mean that has a longer focal length for both 35mm full frame and APS-C format cameras. Secondary principal point of lens Focal length vs. Angle of view (measured diagonally) Focal length Longer focal lengths correspond to achieve sufficient depth of field with the same-size sensor. Other...
...-angle lenses with subjects that angle of view is at close to get the desired details in perfect focus. The "Focal length vs. Perspective With long focal lengths, foreground and background objects will often appear to fill the frame. Another way of saying this relationship... would mean that has a longer focal length for both 35mm full frame and APS-C format cameras. Secondary principal point of lens Focal length vs. Angle of view (measured diagonally) Focal length Longer focal lengths correspond to achieve sufficient depth of field with the same-size sensor. Other...