Angle of view camera–subject distance to preserve the size of a subject, changing the angle of view can indirectly distort perspective, changing the apparent relative size of the subject and foreground. If the subject image size remains the same, then at any given aperture all lenses, wide angle and long lenses, will give the same depth of field. An example of how lens choice affects angle of view. This table shows the diagonal, horizontal, and vertical angles of view, in degrees, for lenses producing rectilinear images, when used with 36 mm × 24 mm format (that is, 135 film or full-frame 35mm digital
David Van Gelder Octagon House David Van Gelder Octagon House The David Van Gelder Octagon House, also known as Springside is located at 21 Walnut Street in Catskill, New York. The brick house was built in 1860. It is architecturally significant as an example of an octagon house. The eight-sided plan was made popular in the mid-19th century by phrenologist Orson Squire Fowler. He called the floor plan "a superior plan". It includes four large square rooms and four small triangular rooms on each of the two floors. Two corners of each of the triangular rooms are small triangular closets. A central stair rises through