Published by Essence Computing
1. Depending on the ISO rating being used the Exposure value selected from the list can be increased or decreased e. g. if the light is low and the EV is -3 but you are using ISO 800 then the effective Exposure value is zero (ISO 800 counts as +3 to EV) the shutter speed needs to match this value not that selected from the standard lighting condition values.
2. Now you may not be able to set you camera to the exact value given but it does give you a much better idea of the real shutter speed required rather than trying to guess from the tables (which are calculated on a logarithmic scale and are approximations).
3. This App takes some simple information about the lighting conditions, the f-stop of the camera and the ISO rating being used and calculates what the correct shutter speed should be. It is that simple.
4. Just type in the f/stop value using the keypad, type in the ISO rating using the keypad and then select the applicable lighting conditions from the four lighting condition types: Daylight, Twilight, Night and Indoors.
5. The App then calculates what the effective EV value is (given the ISO rating) and so can calculate what the actual shutter speed should be.
6. Ever struggled with an exposure meter or the camera's auto exposure system and found that it just cannot seem to determine the correct shutter speed?
7. Coupled with ISO values that do not generate exact EV numbers this value can show you the true value you should be attempting to use. An ISO of 250 adds +1. 32 to the EV value. It is a log2 scale.
8. There are tables and formulae to help you to work out the shutter speed for yourself, but that's not easy.
9. Being able to see the exact value to use is even more use when long exposures are needed.
10. Well it is possible to calculate the exact value so this is what the App does.
11. If you have used the pre-calculated tables before you might be suprised by the answers this App gives you but, believe me, I have implemented the formulae and the pre-calculated tables are approximations (sometimes rather wild ones).
Check for direct PC Apps or Alternatives (Direct Download)
| App | Download | Rating | Maker |
|---|---|---|---|
 Exposure Calculator |
Get App or Alternatives ↓ | 4 Reviews 4 |
Essence Computing |
Can I download Exposure Calculator for free?
Yes! You can Download Exposure Calculator from official sites for free using our site.
Can I use Exposure Calculator on PC?
It is easy to use the Exposure Calculator app on PC and it works on Windows and MAC. A free tutorial is available to help you get started.
