31 August 2009

Understand Digital Photography Exposure Triangle


The function of a digital camera works based on 3 basic elements. By understanding this 3 basic elements, it will help in shooting your desire photos.

The combination of this 3 elements forms a triangle known as "exposure triangle" or sometime known as digital photography exposure triangle.

The art of digital photography is mainly on playing around with this 3 elements and use it according to the photographer requirement. Therefore it is very important that this 3 elements are clearly understood.

For those who is using a Digital SLR camera, understanding of this 3 elements is very important as this will bring out the full potential of the camera and the photographer's skills.

Here are the 3 basic elements, that form a triangle known as digital photography exposure triangle
1. ISO
2. Shutter speed
3. Aperture

A brief about these 3 elements

ISO
Indicate the sensitivity of the camera towards light. The lower the ISO value, means that the sensor is less sensitive to light while the higher the ISO value, the more sensitive is the sensor to light. The down side of high ISO setting is that image produce consist of noise that degrade the quality of the image. Therefore it is prefered that most photo is taken with the lowest ISO setting, to minimize the present of noise in the picture.

Shutter Speed
How long in "time" does the sensor is exposed to light. The exposure time is control by a mechanical shutter that acts like a closed window. When light is require to enter the sensor, the shutter will open and how long it open will be determine by the period of time and hence is known as shutter speed. Therefore the shorter the time, the higher will be the shutter speed.

Aperture
A camera lens works the same as a human eyes and the aperture will be the iris. The aperture is used to reduce the distance between the object and camera so that the whole object can be capture on the sensor completely. The aperture also has the function to control amount of light going into the camera by adjusting the size of the opening. Logically, the bigger the aperture size, more light will enter the camera while the smaller the aperture size, the less light will go into the camera. The size of the aperture will also have major effect on the DOF (depth of field) of the photo.

The size of the aperture is also commonly known as F stop. The smaller the number indicates the bigger the opening while the larger the number indicated the smaller the opening.

F stop will also determine the quality of a lens, this is simply because to able larger opening (Small F-stop) the more sophisticated will be the len's design, hence more expensive it will be.

Above is just a brief about digital photography triangle. Indepth understanding of each element will be discuss later for better understanding.

Basic rule of thumb,
Fix the ISO, Adjust the aperture for the types of photo you want and adjust shutter speed to get the correct exposure.

20 August 2009

Common photography mistakes from beginner photographer

Catching a common photography mistakes is a norm for many amateur photographer. It just happened without realizing it until someone pointed it out. This has happen to me and I have seen it happen to many of my friends.

There’s nothing wrong in making mistaken as this is part of the learning process, but sometime it can be quite humiliating as this mistakes are so silly.

So here are some common photography mistakes that worth to pay some attention to so that you can avoid doing it.

1. Tilted horizon.
If you are photographing a scene where the water meets the sky, keep the horizon horizontal. A tilted horizon will make your picture looks like falling at one side. To ensure that the horizon is always flat and not tilted, check the left and right side of the viewfinder to ensure that the distance is the same. If your camera has the option of turning on a grid, use it.



2. Out of Focus
Don’t be too hurry is pressing the trigger; make sure the camera has the right object in focus. Try to perform a few more auto focus capturing by half press the trigger. Once you are sure that the focus is right, fully press the trigger button. Always review the images to ensure that your object is sharp and crisp.




3. Not understanding your equipment
This is one of the most important think a photographer need to do and yet omitted by many. Digital camera now a days is becoming more and more easy to use and many amateur just don’t spent enough time understand it. For example, there are multiple mode of metering and each mode gives difference result. There are matrix metering, spot metering and center weighted metering. Understanding each of this function can help improve correct and desirable photo exposure.


4. Put the object at the center.
This is the most common mistake one photographer will do, placing your object right at the center of the field. One reason that contributes to such mistake is that the focus spot of a camera is usually at the center. Learn the rule of third and use it to make your composition much more interesting. However one may ask, how do I focus my object when it is not at the center? Well the simplest way to do it is to lock your focus when the object is at the center of the view. Once the focus is lock, move your camera and start compose your photo. If your camera have more then one focus spot, select the one that closest to the objects.

5. Wrong resolution setting
To make sure your photos turns out shape and details, the resolution set in your camera is very important. The higher the resolution quality, the better is your image quality. If your camera allows, save all images in RAW files at this allow better editing and white balance correction when editing. There are more options in editing from RAW files then standard JPG files.


The above 5 are commonly found mistake that will make a good photo look disastrous. Knowing it and avoid doing it will help in improving your photography quality.

Off cause there are also other less common mistakes that can be avoided and techniques that can help you producing better photo images. For those who want to learn even more digital photography techniques, check out the free report, "Shoot Digital Pics Like the Pros." It's a short but info-filled guide that will have you shooting digital pictures like a pro in no time.

10 August 2009

Malaysia International Fireworks Competition 2009

The most awaiting event of the year, The Malaysia International Fireworks Competition that will be held in Putrajaya every year is coming. There’s no announcement yet for the actual date for this event, but expected schedule to be around August 2009, before Merdeka day

Check out the official website for more update information.

Update : Sad news, there won't be a MIFC 2009. Guess we have to wait for another year for this event.

Sources: Facebook MIFC Fans

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