Tips to Avoid Common Mistakes In Photography

Reduce wobble on Camera
Wobble caused by a combination of the camera movement in the hands of the photographer or the inability to keep the camera stationary or fixed condition, shutter speed and focus lens (focal length) long so that it will produce images that are blurry or opaque. The focal length of the lens when combined with a slow shutter speed will create a situation in which the shutter speed is too slow to freeze the picture before the camera moves significantly.
Shake of the camera can be prevented by using a tripod, hold the camera with the right position or raise the shutter speed to a value greater than the focal length (focal length). For example, if the same focal length to 100mm so its shutter speed should be set to 1/100 sec or faster.

Note: some images mengstabilkan lens features (eg IS Image Stabilizer on Canon lenses), which allows the photographer to take pictures with the shutter speed value is smaller than the focal length of the lens.


Eliminate Red Eye in Figure
Red eye is a phenomenon where human eyes glowing red in the image produced. This is due to the short distance between the flash (especially Fash built-in) into the camera lens. When the flash is on, the light will reflect the color of blood contained in the vessels of the eye behind the object and then the light went back into the lens. Blue-eyed people are very prone to red-eye phenomenon because it has less pigment to absorb light.

There are several steps taken to minimize or eliminate red eye in pictures. Some cameras have a red eye reduction feature that forces objects iris closes before the picture is taken. The main problem with this method is that it often forcing objects to deliberately turn a blind eye before the picture is taken and not always completely eliminate red eye effect.

More effective method is to use an external flash mounted on the camera hot-shoe. External Flash will radically change the flash point of the fall of the object, it will prevent the lens captures the reflection of light from the color of blood behind the eyes photographed object.

Cahaya flash eksternal yang dipantulkan dari mata tidak masuk ke lensa

Cahaya flash built-in yang dipantulkan dari mata masuk ke lensa

 

Reduce Digital Noise
Digital noise is the effect polka dots (spots) on images with long exposures or high ISO images with the lack of lighting situations. The effect is most visible digital noise in images taken in low light situations and ISO speed.

 

Digital Noise pada ISO yang tinggi 

 

Digital noise can be reduced by using the ISO setting between 100 and 400. Setting ISO 400 will give you more exposure but ISO 400 bit digital displays noise.

Digital noise vs ISO

Currently DSLR cameras usually have a noise reduction feature, if its noise reduction is turned on it will automatically be activated when taking pictures with long exposures. The negative side of this feature is the camera takes a significant time lag between taking pictures. One way to avoid this time-out is to turn off noise reduction feature on the camera and use the aperture setting noise reduction after transferring images to the computer.