| F-stop |
|
The focal length divided by the aperture size. I.e. : 1.4 for aperture "f/1.4" |
| Focal length |
mm |
The actual focal length of the lens, without any factors applied. Most lenses have this printed on them somewhere. |
| Sensor Width |
mm |
A measure of the size of the sensor inside the camera. |
| Sensor Aspect Ratio |
|
Width/Height Ratio. 1.5 for 24x36 argentic and most DSLRs, 1.3333 for (compact) digital cameras |
| Pixel Count |
MPixels |
How many MegaPixels in the senseor. |
| Lens to subject |
m |
The distance between the lens and the object being photographed. |
| Subject to background |
m |
The distance that the background is behind the subject. |
| Crop |
% |
The amount the image is cropped. 100% indicates no cropping. 50% indicates that the image is half the full height. |
Results |
(press Tab) |
or change any parameter to compute |
| One metre subject size |
% |
How much of the final image a one metre subject will fill. |
| Pixels per line |
pixels |
. |
| Pixel Width |
microns |
. |
| Background blur |
% |
The size a point in the background will be projected onto the sensor divided by the diagonal of the sensor. |
| Pixels blur |
pixels |
The number of pixels a point in the background will be projected onto. |