How to take Action Shots
Action shots or moving objects are not easy to shoot. Here some basic tips.
1. use manual focus and manual exposure to lock in your settings before taking the shot
2. enable the high speed continuous shutter mode and then just lean on the shutter button when the action starts
3. the long telephoto works great if you have bright sunlight.
4. use the lowest ISO and fastest shutter speed that you can.
How to reduce Noise in picture
Noise reduction through Image Stacking
We can reduce the noise in a image by using the Image Stacking. It is a method of blending together a large number of photos of the same subject. When you do this right, what the photos have in common is maximized and what is different is minimized. Since the noise pattern varies from photo to photo, the noise gets smoothed out, but you don't lose fine detail the way you can with noise reduction software.
The following photo is a stack of thirty-two consecutive exposures (of which the above photo was the first). Notice how much less noise there is, while the fine detail of the radio tower and the tree leaves is all preserved. Note that there is absolutely no other editing, noise reduction, or other post-processing.
These are the simple steps.
1) Take the photos. You want them to be as close to identical as possible, so a tripod is critical. More photos are better, especially in powers of 2 (i.e. 4, 8, 16, 32, etc).
2) Open all the images in your editing software. I use Photoshop Elements 5.
3) Select one image and paste it as a new layer into another image. If all your images are the same size and orientation, you won't need to fudge the alignment.
4) Change the new layer's opacity to 50%.
5) Flatten the image. You now have an image that has all the shared detail and 50% of the noise of each root image.
6) Close the image you copied from. You don't have to save the changes.
7) Continue to merge pairs of images until you have half as many images as you started with. Now merge pairs of these images, and so on until you have one, final image.
8) Save your final image.
How to shoot in sunlight.
First, use ISO 80, not 100. You up the ISO only in situations where you're not getting enough light.
Second, if you're not in manual, decrease the exposure compensation (Ev).
Third, consider a neutral density of polarizing filter. These act like sunglasses for your camera.
The display button in review mode gives good feedback. Overexposed areas will flash. Also, auto-exposure bracketing will take 3 shots in a row at various exposures, making it easier to decide.
Few more steps,
Change the Priority mode to Shutter speed priority if you are not very comfortable with Manual mode and select an higher shutter speed to reduce the amount of light that hits the sensor.
