Tyler Tyler
Is the Dalai Lama also a Dave?

Megan Megan
I doubt it.


David C. Turnley is a Pulitzer Prize-winning photographer and filmmaker. He won his Pulitzer for his coverage of all the revolution in 1989, including the Fall of the Berlin Wall and Tienanmen Square in China. He was a runner-up for the Pulitzer four other times. He has also won the World press Picture of the year twice, the prestigious Robert Capa Award for Courage, and four Overseas Press Club Awards.

This used to be one of Dave’s websites, but he decided to let it go, so it expired and lay dormant for a while. Now at the moment, the new owner hasn’t really decided what to do with it, yet. So to make your visit not an entire waste, here are a few posts about photography basics.

Hector Hector
Photography basics?

Megan Megan
I just use my phone.




Latest Posts

Shutter Speed

Effects of Shutter Speed in Photo Exposure.

In digital photograph, its vital to know how to make manual adjustments to the exposure of your shots. This gives you control of mobility needed to enhance your shots.
One areas which can be adjusted manually is the Shutter Speed:shutter speed.

Shutter Speed.

This is the duration of time when the shutter is open to enable the image sensor capture the seen to be shot. The specified value of shutter speed is f-stop e.g. f-1/60
It is measured in seconds or fractions of a second e.g. 1/60 and higher the denominator the better e.g. 1/60 is better than 1/15.
The most common shutter speed for a digital camera is usually 1/60 of a second, anything less that this will require the use of a stabilizer or tripod/monopod because slight camera shake will result to a blurred image with the blurring increasing with the decrease in speed.
Now the shutter speed available which is 1/60 will double with every adjustment made to the settings i.e. an increase in one stop will yield to double the shutter speed.
When you are deciding on the shutter speed to use in an image, you need to put into consideration any movements which might be in the scene you want to capture.
If there are movements, you can freeze them to a still before shooting the scene, or you capture the scene while the object is still making the movements. This will result to a blurred shot which shows that the object was in motion.motion
If you choose the former option (freeze the scene) you will need to make adjustments to the settings of the shutter speed by increasing it.
In case you need to show that the object was in motion, which result to a blurred capture, then you will have to decrease the shutter speed.


When choosing a shutter speed you must also consider the focal length of the lens you are using.
A longer the focal length will lead to the increase the amount of camera shaking thus in this case you’ll need to use a faster shutter speed. This does not apply when a tripod or stabilizer is used.
The choice of shutter speed to use should be determined by the denominator of the shutter speed which should be more than the focal length e.g. if focal length is 100mm the shutter speed should be 1/150th or more.

How Shutter Speed Relates to the Other Elements Of Exposure.

When you make any adjustments to the shutter speed, you will also have to review the adjustments of the other elements which control the exposure. For instance, if you increase shutter speed from 1/125 to 1/250 you will need to increase the aperture by that same scale to compensate for the changes. This is because, when the shutter speed is increased as above, then the amount of light which is allowed into the camera will be half the required amount. To make necessary compensation for this, you will need to increase the aperture by the same scale you increase the shutter speed so that they can be after.
Alternatively you may decide not to make adjustments to the aperture. In that case then, you’ll need to choose a faster ISO rating e.g. moving ISO from ISO 100 to ISO 400 for the above shutter speed.