Tuesday, February 22, 2011

WEEK5

SEMESTER BREAK (CHINESE NEW YEAR)

WEEK 4 (APERTURE & SHUTTER SPEED)



This week, I'm going to captures which is has big aperture vs small aperture and slow shutter speed vs fast shutter speed.

Let look the pictures below :

                                                      F25    :    0.62sec   :    ISO 800  
                                                           (low shutter speed)
 


                                                      F5.6    :    1/30   :    ISO 800
                                                             (fast shutter speed)



                                                      F5.6    :    1/140   :    ISO 800
                                                             (fast shutter speed)



                                                       F5.6    :    1/125   :    ISO 800
                                                             (low shutter speed)



                                                      F5.6    :    1/100   :    ISO 800
                                                             (fast shutter speed)



                                                     F29    :    1/2   :    ISO 800
                                                          (low shutter speed)



                                                      F5.6    :    1/100   :    ISO 800
                                                            (big  aperture)



                                                       F36    :    1/60   :    ISO 800
                                                               (small  aperture)
                           *But actually this picture is considered as overexposed..hahaha



                                                          F16    :    1/60   :    ISO 800
                                                                 (big  aperture)



                                                      F36    :    1/60   :    ISO 800
                                                               (small  aperture)
                        *But actually this picture is considered as overexposed..hahaha



                                                           F6.3    :    1/100   :    ISO 800
                                                                         (big  aperture)

Background is blur because of less of depth of field. Big aperture which is small number of f stop will caused less of depth of field.


                                                                 F14    :    1/60   :    ISO 800
                                                                          (small  aperture)

Background is clear because of  depth of field is increase. Small aperture which is large number of f stop will caused   depth of field is increased.



Shutter Speed

First off, slow shutter speed. We use this for two reasons . First, because it’s quite dark and we need to let more light into the camera. Or second, because we want to introduce some blur into our photo.

What? Blurry photos? Yep! That’s right. Sometimes we can use blur for a creative effect.
So, we can see from this pictures? In conclusion we know that if using fast shutter speed to freeze an action or to stop an action. If we are using

The key thing to remember about using a slow shutter speed is that anything that moves in the scene will blur. Once you're aware of this you can use it creatively in your photography.

If slow shutter speeds allow you to get creative with blur, fast shutter speeds have the opposite effect ,they freeze movement or stop an action.A fast shutter speed could be considered anything over 1/500th of a second. But modern digital cameras go much faster than this. If you have a digital SLR you may well be able to select shutter speeds up to 1/8,000th of a second – incredibly fast!

Depth of Field
 
As well as letting more or less light into the camera the size of the aperture we choose governs the 'Depth of Field'. Depth of field means the amount of the picture, from foreground to background, that is in sharp focus. A smaller aperture will give us a greater depth of field and a larger aperture will give us a more restricted depth of field. This characteristic can be used to good effect in many ways.

Depth of field (DOF) is a term which refers to the areas of the photograph both in front and behind the main focus point which remain "sharp" (in focus). Depth of field is affected by the aperture, subject distance, focal length, and film or sensor format.

A larger aperture (smaller f-number, e.g. f/2) has a shallow depth of field. Anything behind or in front of the main focus point will appear blurred. A smaller aperture (larger f-number, e.g. f/11) has a greater depth of field. Objects within a certain range behind or in front of the main focus point will also appear sharp.

Monday, February 21, 2011

WEEK3(PRACTICAL SHOOTING WITH EN FUAD)

Ni pula gambar-gambar yang diambil ketika latihan mengambil gambar bersama dengan en fuad..mase ni la saya baru tahu..apa fokus dia..mcm mane nk set itu..nk set ini..dan macam mane nk fokus..he he he..apakah yang terjadi?moh la kita tengok ramai2...hehe






so, masih banyak yang perlu saya pelajari kan?xberapa ok juga la gambarnya..hehe...ingatkan nk g belajar lagi dgn en fuad next weeknyer tuh..tapi ade hal tibe-tibe mase tuh..tak dapat la plak..ok..kita tengok apa yang terjadi mggu yang seterusnya..hik3..:)

WEEK3 (PRACTICAL SHOOTING)

This week, I had practical shooting.he he he..mase ni mula2 belajar pegang kamera.. semua gambar pun tak tahu apa motif dia..ni la first time tangan ini memegang kamera dslr..hik3..

















so ini adalah hasil2 yang terjadi pada minggu ini...teruk kan? he he he..tibe2 gambar sendiri pun ade jugak..ish2..

Monday, January 31, 2011

WEEK2-ISO

ISO denotes is how sensitive the image sensor is to the amount of light present. The higher the ISO, the more sensitive the image sensor and therefore the possibility to take pictures in low-light situations.

ISO speed affects the shutter speed / aperture combinations we can use to obtain correct exposure.

Suppose our digital camera's light meter warns us there is not enough light to correctly expose a scene. We could use the on-board flash, but let's suppose again it's not allowed.

We would then need to use a higher ISO. Set on "ISO Auto" mode, Our digital camera will automatically select a higher ISO. Otherwise, We can manually select the next higher ISO and see if the increased sensitivity allows us to obtain a correctly exposed picture. If it does, we can now take a correctly exposed picture.

However, all this increase in sensitivity does not come free. There is a price to pay with our image appearing more noisy.

General Rules and tips for ISO Settings:

  • Use an ISO of 100 or 200 when taking photographs outside in sunny conditions.
  • If the sky is overcast or it is evening time, then use an ISO within the range of 400 to 800.
  • Night time or in cases of low light you might need to set your digital camera ISO to 1600. If we don't then our photo will appear too dark if at all. 

(Self Review)

ISO is the measurement of the camera sensor's sensitivity to light. We will get the same effect of ISO either we used longer shutter speed or larger aperture opening. 

If we are using high ISO value means the sensor will be more sensitive to light, meaning it will take less light to get the right exposure. Then, If we are using low ISO indicates low sensitivity to light but generally higher resolution with less noise or grain.

When taking photograph outside or in sunny condition, we can used ISO of 100 or 200. When taking in a darkened room or if the sky is overcast or in the evening time, we can used ISO 400 to 800.

During at night, we can set our camera to ISO 1600. Based on the condition or placed. If not, our photo will appear too dark.


WEEK2-WHITE BALANCE

Preset White Balance Settings

  • Auto this is where the camera makes a best guess on a shot by shot basis. You’ll find it works in many situations but it’s worth venturing out of it for trickier lighting.
  • Tungsten this mode is usually symbolized with a little bulb and is for shooting indoors, especially under tungsten (incandescent) lighting (such as bulb lighting). It generally cools down the colors in photos.
  • Fluorescentthis compensates for the ‘cool’ light of fluorescent light and will warm up your shots.
  • Daylight/Sunnynot all cameras have this setting because it sets things as fairly ‘normal’ white balance settings.
  • Cloudythis setting generally warms things up a touch more than ‘daylight’ mode.
  • Flashthe flash of a camera can be quite a cool light so in Flash WB mode you’ll find it warms up your shots a touch.
  • Shade the light in shade is generally cooler (bluer) than shooting in direct sunlight so this mode will warm things up a little.
                                                  

                                                        

 

Preset White Balance

Digital cameras also have presets white balance options: sunlight and cloudy for outdoor and fluorescent, incandescent and tungsten bulb for indoor in case you need them. These will compensate the yellow or blue tint. Here are some examples for these on Canon PowerShot A520, indoor conditions. 

Auto White Balance 

Situations when auto white balance will not likely work proper are: beaches (yellowish tin), snow (bluish tin), cloudy weather, indoor photography, but also forests. This is why a lot of cameras have scene modes for these cases.

 

 

Here are several examples of comparison pictures using white balanced :

 

















(Self Review)



White balance refer to the adjustment of relative amounts of red, green , blue and so on. So that, we can produced picture with neutral colors. For example if we want to take pictures of sky, we can set the white balance to be more blue, thus our sky pictures will looked more nature and nice. Other than that, it will give the sky color like to be live.

White balance is not related to the exposure. It only the appearance of color in the images. White balance is essentially  the camera compensating for the color cast of the light in order to reproduced the correct color. We must know to adjust the correct color which is white balance to produce an interesting pictures. So that our pictures will have a good color.

 

Thursday, January 27, 2011

WEEK 2-SHUTTER SPEED

Several examples pictures that I found which are using shutter speed. 

high shutter speed
(suka sgt gambar ni..coz saya rase gmbr ni cantik sgt..hihi..korang rase?ke biasa2 jer?hihik)

lower shutter speed

high shutter speed

high shutter speed

high shutter speed


lower shutter speed

lower shutter speed


high shutter speed

high shutter speed

high shutter speed
 


 What is SHUTTER SPEED?

Wikipedia describes shutter speed as being the amount of time a digital cameras shutter is held open for when taking a photograph. Shutter speed allows light to reach the cameras image sensor. 

In photography, shutter speed is a common term used to discuss exposure time, the effective length of time a camera's shutter is open. The total exposure is proportional to this exposure time, or duration of light reaching the film or image sensor.

Shutter speed is measured in seconds and looks like 1/500, 1/250, 1/2 or 1 as in one second etc. It can range anywhere from 1/8000 to B for bulb. Bulb keeps the shutter open for as long as the shutter button is pressed down.

How do we know what shutter speed to use?


The shutter speed we will need to use depends on the type of photograph we want to take. For example, if we want to take a photograph of water frozen in action with every little bead in focus, then we would choose a fast shutter speed like 1/500 of a second. If we want to blur running water like the example below, then we would need to use a slower shutter speed like 1/4 of a second. Often when we use a slow shutter speed, we will also need a tripod to help avoid camera shake. 

Short tips for using shutter speed in digital SLR photography

  • Slow shutter speed, slows motion.
  • Fast shutter speed, takes the image almost instantly as in frozen in time.
  • Use slow shutter speeds of at least 10 seconds or more for night shots of cities, buildings and streets etc.
  • When using a slow shutter speed it's also a good idea to use a tripod and remote shutter release to avoid camera shake.
  • If  for any reason we don't want to use a tripod, then a general rule to avoid camera shake is to never set our shutter speed slower than the reciprocal of the focal length value. For example, if our lens focal length is set at 50mm then don't use a shutter speed any slower than 1/60th of a second and so forth.
  • To photograph a running child or animal while blurring the background, set the shutter speed to between 1/40 sec and 1/125 sec. Then follow the running child or moving animal as we press the shutter button. This is often referred to as panning.


(Self Review)

Slow shutter speed will allow blurring of the subject. Fast shutter speeds will stop the action. When shutter speed decrease, chances to get a blurring image will be increase because we must hold the camera standby for a longer period.

Fast shutter speeds are used to stop motion and will freeze the subjects. While for the slow shutter speeds can be used to portray movement or speed.