Canon IXUS 105 lens says 5.0-20.0 mm 1: 2.8-5.9. What does this mean? How can I shoot my legs and arms longer?

5.0-20.0 mm1:2.8-5.9 means that the shortest focal length of the zoom distance is 5mm and the longest focal length is 20 mm. 2.8 is the maximum aperture at short focal length, and 5.9 is the maximum aperture at longest focal length, which belongs to unstable aperture. The maximum aperture will change with the change of focal length.

If you want to shoot people with long legs and long arms, try to get close to people with short focal length and wide angle. Shooting someone looking up can make their legs longer.

Techniques for shooting characters:

1, the head and body should not be in a straight line. If the two are in a straight line, it will inevitably feel boring. Therefore, when the body is facing the camera, the head should turn slightly to the left or right, and the photo will look elegant and vivid; By the same token, when the subject's eyes are facing the camera, turning his body to a certain angle will make the picture look lively and dynamic and increase the three-dimensional sense.

2. Don't parallel your arms and legs. No matter whether the subject is sitting or standing, never let his arms or legs be parallel, because it will make people feel stiff and mechanical. The appropriate way can be that a song always forms a certain angle or both. This can not only cause movement, but also change posture.

3. Try to make the body shape curve clear. For female subjects, it is necessary to show their charming curves. The usual practice is to let one leg of the character actually support the weight of the whole body, and the other leg is slightly raised and leaned against the standing leg. The arm should be turned to show its narrowest side, and the chest should try to show its towering and plump feeling through the curve of the waist. At the same time, the character's hand can be placed on the hip to provide the necessary width for the picture.

4, sitting posture is not sleepy. Don't let the subject sit in the chair as usual when showing his sitting posture. If so, her thighs will be at rest, so that the fat part at the upper end of her legs will bulge, making her legs look thick. The correct way is to let his body go forward, sit near the chair, chest out and abdomen in order to avoid the phenomenon of drooping shoulders and protruding abdomen.

5. The lens should be far away. Generally speaking, it is better to take a long shot than to take a close shot. Because when the lens (especially the lens with short focal length) is very close to the subject, distortion will occur. Therefore, when shooting, we should choose a lens with appropriate focal length and keep a certain distance from the subject. According to practice, we know that if you shoot a person's head with a standard lens, the best distance should be between 6 and 8 feet; Chest imaging should be between 8 and 9 feet; 13-22 feet is suitable for taking full-length portraits.

6. Show a good posture. The proportion of the subject's hand in the picture is not large, but if it is improperly placed, it will destroy the overall aesthetic feeling of the picture. Pay attention to the integrity of the hand when shooting, and don't let the hand feel deformed, broken or incomplete. If you put your hands in your hips or pockets, show some fingers to avoid giving the impression of being cut off.