Friday, September 2, 2011

The Camera

Words:

Visible Spectrum- the range of wavelengths of electromagnetic radiation that is normally visible, from 380 to 760 nm.

 
Ambrotype- an early type of photograph, made by placing a glass negative against a dark background.


Tintytype- is a photograph made by creating a direct positive on a sheet of iron metal that is blackened by painting, lacquering or enamelling and is used as a support for a collodion photographic emulsion.


Pentaprism- a prism that has five faces, a pair of which are at 90° to each other; a ray entering one of the pair emerges from the other at an angle of 90° to its original direction: used especially in single-lens reflex cameras to reverse images laterally and reflect them to the viewfinder.



Picture of the inside of a SLR camera -




Definitions

aperture- an opening, usually circular, that limits the quantity of light that can enter an optical instrument.
shutter- a mechanical device for opening and closing the aperture of a camera lens to expose film or the like.
exposure- the intensity of light falling on a photographic film or plate multiplied by the time for which it is exposed
depth of field- the range of distances along the axis of an optical instrument, usually a camera lens, through which an object will produce a relatively distinct image.
F-stop-  the setting of an adjustable lens aperture, as indicated by an f number. 
Focal length- the distance between an object lens and its corresponding focal plane in a telescope.



Labeled buttons on T3 -




No comments:

Post a Comment