Freeze subject

Photos may sometimes become blurred as the subject moves while the shutter-release button is pressed. To avoid this, you need to set a shutter speed fast enough for such movement to be negligible.

To avoid these areas of blurring, we must now decide what the acceptable limit will be.

One approach would be to have a very strict view and say, "I do not want the image on the sensor to exceed more than half the distance between the pixels." This would give a figure of about 3-4 microns and would surely ensure that the image would remain sharp even if examined in Photoshop. However, this would be a very demanding criterion that would result in an incredibly high shutter speed.

For this reason you will find 3 requirements criteria:

• Net for A4 printing
• Net for viewing with the naked eye on a screen with a 100% display
• Net for viewing with the naked eye on a screen with a 400% display

Use

1. Set the focal length and speed unit of the subject

2. Adjust the speed of the subject manually or by clicking on one of the 6 pre-programmed speed icons

3. Choose the requirement criterion for blur (A4 print, naked eye on a screen with a 100% display or naked eye on a screen with a 400% display)

4. Choose the direction of movement of the subject (side, front or diagonal)

5. Set the focus unit

6. Set the focus distance

In the bottom area

7. You get:

The shutter speed min. to put