liningiv
lvl.4
Flight distance : 329409 ft
United Kingdom
Offline
|
Hi Aviin,
I'm no expert but I hope the following will help you:
The camera aperture cannot be changed, it is fixed at f2,8. This lets a lot of light in.
The camera cannot be focussed, but because it is a wide angle lens, 92 degrees, and has a fairly small sensor, everything from about 6 feet to infinity will be in focus.
Exposure is controlled by the combination of shutter speed, from 8 seconds to 1/8000 seconds, and ISO which effectively changes the sensitivity of the sensor.
If you select automatic, the camera will select a suitable ISO and shutter speed for you. In most cases this will be perfect.
In some cases the sky or clouds may be over exposed and come out as totally white in your picture, this is called "blowing out". If this happens you can use the right wheel to adjust the exposure either up or down to lighten the picture or in this case darken the picture. Then take the picture again, or adjust before you take it.
To aid with correct exposure you can display a Histogram on the Pad or phone which graphically displays the distribution of light in the image. If the clouds or sky are burnt out there will be a peak in the histogram graph at the right hand end. If the opposite is true, say a forest of trees are showing very dark, then there will be a peak in the histogram at the LH end. Ideal is to have an equal spread of information right across the histogram, with no peaks at either the LH dark end or the RH light end. Use the Right Hand wheel to adjust the exposure so that there are no peaks at either end of the histogram. You can try this indoors, you don't have to be flying.
Another tool you can use is Zebras. This will show a striped black and white area in you picture where it will be over exposed or blown out. Again use the RH wheel to adjust the exposure until the zebras disappear.
There is a manual mode where you can select the shutter speed and the ISO, but in most cases this is not needed unless you have some specific requirements. For most people a correctly exposed shot is the only requirement.
White balance affects how the camera renders colours under different light, there are settings for daylight, sunlight, cloud, fluorescent etc which if selected will change how colours are displayed. Try taking a picture outside with fluorescent selected and it will have a green tinge to it for example. Again try this when on the ground, you don't need to be flying. Best for general picture taking is Auto White balance. This allows the camera to select the colour temperature that it thinks is best, and it generally is.
Next is the choice between .jpeg and RAW.
A .jpeg picture will have been adjusted by the camera software to produce a colourful, sharp, and what the software engineer thinks you will find pleasing, and generally this is true. You can use this picture straight away on the WWW or anywhere you want to show it. However it is highly compressed and every time you change it and save it, it will lose information. Also if you change it and file it, you cannot go back to how it was unless you have made a copy before editing. If you want to change anything about the picture such as colour or exposure, the changed picture will be of less quality than the original .jpeg and the change will be permanent
RAW does not change anything about the picture. The information captured by each pixel on the camera is unchanged, and it is left up to you, to adjust the image in any way you want. Usually the software program you use to edit the RAW image will not change the original RAW but store all the adjustments that you have made to the image in a file which is stored with the RAW so that you always have the unchanged original to go back to if you want to change something else about the image.
Best illustration is to think of an image which you change to Black and White. If is then saved as a .jpeg you cannot bring back the colour. If you have a RAW then you can bring back the colour.
Hope this helps you get started, if you select auto, then learn to adjust exposure using the RH wheel you will be most of the way to getting great shots. Practice on the ground till you get the feeling for what the adjustments do, then apply them in the air. |
|