|
|
Exposure and shooting modes |
|
|
|
|
Written by Administrator
|
|
Wednesday, 12 August 2009 |
|
Exposure is the amount of light that falls on the matrix (in the case of analog cameras for a film) needs to be done Reg pictures |
|
Read more...
|
|
|
Written by Administrator
|
|
Wednesday, 12 August 2009 |
|
Shutter speed is the time to open the shutter, in which radiation-sensitive element is in the camera. Shutter opening times are counted in fractions of a second (1 / 2000, 1 / 1000, 1 / 500, 1 / 250, 1 / 125, 1 / 60, 1 / 30, 1 / 15, 1 / 8, 1 / 4, 1 / 2) where for example 1 / 2 means the second half, and 1 / 30 of one thirtieth of a second. Snapshot can also be open longer, then it is counted in the total seconds (1 ', 2 ", 4", 8 "...). As you can see, each new value is greater than twice the previous one.
|
|
Read more...
|
|
|
Written by Administrator
|
|
Wednesday, 12 August 2009 |
|
ISO to parameter indicating the extent to which the photosensitive element is sensitive to light. In other words the amount of light needed for proper exposure film / matrix. Currently, sensitivity is defined in the ISO scale. For example, in compact digital cameras are the most sensitivity of ISO 50, 100, 200, 400, in some 800. Sensitivity is equivalent sensitivity of an analog video camera. I think all remember the movies: "hundreds" .The smaller the value of the ISO-sensitive element is less sensitive to light and need more light for proper exposure images.
|
|
Read more...
|
|
|
Written by Administrator
|
|
Wednesday, 12 August 2009 |
|
Crop is not a parameter defining the lens, but worth it to take into account when buying a lens. Put simply, it identifies the difference between the angle of view when the lens of our camera matrix, and the angle at matrix, which is the matrix corresponding to the size 35mm film frame. This matrix has it eg Canon 5D or 1Ds Mark II. Cheaper SLR rather have smaller matrices. |
|
Last Updated ( Wednesday, 12 August 2009 )
|
|
Read more...
|
|
|
|
Lenses 