Digital photographing apparatus, method of controlling the same, and recording medium storing computer program for executing the method

1. A digital photographing apparatus, comprising:

a zoom control that controls a zoom function;

an input via which the photographing apparatus obtains data regarding a first still image at a first zoom ratio, then automatically obtains data regarding a second still image at a second zoom ratio that is different from the first zoom ratio, and then automatically obtains data regarding a third still image at a third zoom ratio that is different from the first and second zoom ratios, wherein:

if the first zoom ratio

is greater than a first preset zoom ratio that is greater than a minimum zoom ratio of the digital photographing apparatus,

and

is less than a second preset zoom ratio that is less than a maximum zoom ratio of the digital photographing apparatus,

then

one of the second and third zoom ratios is a zoom ratio less than the first zoom ratio

and

the other of the second and third zoom ratios is a zoom ratio greater than the first zoom ratio.

2. The digital photographing apparatus of claim 1 , further comprising:

a user input that provides a signal, wherein the data regarding the first still image is obtained in accordance with the signal, and the data regarding the second still image is obtained without an additional signal input from the user.

3. The digital photographing apparatus of claim 1 , wherein the data regarding the first still image is obtained in accordance with a signal input from a user, and the data regarding the second and third still images are obtained without additional signals input from the user.

4. The digital photographing apparatus of claim 1 , wherein,

if the first zoom ratio

is greater than the first preset zoom ratio of the digital photographing apparatus,

and

is less than the second preset zoom ratio of the digital photographing apparatus,

and

is relatively closer to the maximum zoom ratio of the digital photographing apparatus than to the minimum zoom ratio of the digital photographing apparatus,

then

the zoom ratio greater than the first zoom ratio is used as the second zoom ratio and the zoom ratio less than the first zoom ratio is used as the third zoom ratio.

5. The digital photographing apparatus of claim 1 , wherein,

if the first zoom ratio

is greater than the first preset zoom ratio of the digital photographing apparatus,

and

is less than the second preset zoom ratio of the digital photographing apparatus,

and

is relatively closer to the minimum zoom ratio of the digital photographing apparatus than to the maximum zoom ratio of the digital photographing apparatus,

then

the zoom ratio less than the first zoom ratio is used as the second zoom ratio and the zoom ratio greater than the first zoom ratio is used as the third zoom ratio.

6. The digital photographing apparatus of claim 1 , further comprising:

a face detection unit that determines whether a face is included in the first still image that is obtained or to be obtained,

wherein, if the face detection unit detects the face, then the second and third zoom ratios are the same as or less than the zoom ratio including a whole face in the first still image.

7. The digital photographing apparatus of claim 1 , wherein,

if the first zoom ratio is a zoom ratio less than the first preset zoom ratio of the digital photographing apparatus,

then a zoom ratio greater than the first zoom ratio is used as the second zoom ratio and a zoom ratio greater than the second zoom ratio is used as the third zoom ratio.

8. The digital photographing apparatus of claim 7 , further comprising:

a face detection unit that determines whether a face is included in the first still image that is obtained or to be obtained,

wherein, if the face detection unit detects the face, a zoom ratio including a whole face in the first still image or a zoom ratio less than the zoom ratio including the whole face in the first still image is used as each of the second and third zoom ratios.

9. The digital photographing apparatus of claim 1 , wherein,

if the first zoom ratio is a zoom ratio greater than the second preset zoom ratio of the digital photographing apparatus, a zoom ratio less than the first zoom ratio is used as the second zoom ratio and a zoom ratio less than the second zoom ratio is used as the third zoom ratio.

10. The digital photographing apparatus of claim 1 , further comprising:

an auto-focuser via which auto-focusing is performed on a subject when the data regarding the first still image is obtained, and

wherein, when data regarding another still image that is not the first still image is obtained, additional auto-focusing is not performed and information on the auto-focusing performed when the data regarding the first still image is obtained is used.

11. A method of controlling a digital photographing apparatus having a zoom function, the method comprising:

(a) initially obtaining data regarding a first still image at a first zoom ratio;

(b) automatically obtaining data regarding a second still image at a second zoom ratio that is different from the first zoom ratio, after (a) the initially obtaining data is performed; and

(c) further automatically obtaining data regarding a third still image at a third zoom ratio that is different from the first and second zoom ratios, after (b) the automatically obtaining data is performed; wherein,

if the first zoom ratio

is greater than a first preset zoom ratio that is greater than a minimum zoom ratio of the digital photographing apparatus,

and

is less than a second preset zoom ratio that is less than a maximum zoom ratio of the digital photographing apparatus,

then

one of the second and third zoom ratios is a zoom ratio less than the first zoom ratio

and

the other of the second and third zoom ratios is a zoom ratio greater than the first zoom ratio.

12. The method of claim 11 , wherein (a) the initially obtaining data is performed in accordance with a signal input from a user, and (b) the automatically obtaining data is performed without an additional signal input from the user.

13. The method of claim 11 , wherein (a) the initially obtaining data is performed in accordance with a signal input from a user, and (b) the automatically obtaining data and (c) the further automatically obtaining data are performed without additional signals input from the user.

14. The method of claim 11 , wherein,

if the first zoom ratio

is greater than the first preset zoom ratio of the digital photographing apparatus,

and

is less than the second preset zoom ratio of the digital photographing apparatus,

and

is relatively closer to the maximum zoom ratio of the digital photographing apparatus than to the minimum zoom ratio of the digital photographing apparatus,

then

the zoom ratio greater than the first zoom ratio is used as the second zoom ratio and the zoom ratio less than the first zoom ratio is used as the third zoom ratio.

15. The method of claim 11 , wherein,

if the first zoom ratio

is greater than the first preset zoom ratio of the digital photographing apparatus,

and

is less than the second preset zoom ratio of the digital photographing apparatus,

and

is relatively closer to the minimum zoom ratio of the digital photographing apparatus than to the maximum zoom ratio of the digital photographing apparatus,

then

the zoom ratio less than the first zoom ratio is used as the second zoom ratio and the zoom ratio greater than the first zoom ratio is used as the third zoom ratio.

16. The method of claim 11 , further comprising:

determining whether a face is included in the first still image, before or when data regarding the first still image is obtained,

wherein, if it is determined that the face is included in the first still image, then the second and third zoom ratios are the same as or less than the zoom ratio including a whole face in the first still image.

17. The method of claim 11 , wherein,

if the first zoom ratio is a zoom ratio less than the first preset zoom ratio of the digital photographing apparatus,

then a zoom ratio greater than the first zoom ratio is used as the second zoom ratio and a zoom ratio greater than the second zoom ratio is used as the third zoom ratio.

18. The method of claim 17 , further comprising:

determining whether a face is included in the first still image, before or when data regarding the first still image is obtained,

wherein, if it is determined that the face is included in the first still image, then a zoom ratio including a whole face in the first still image or a zoom ratio less than the zoom ratio including the whole face in the first still image is used as each of the second and third zoom ratios.

19. The method of claim 11 , wherein,

if the first zoom ratio is a zoom ratio greater than the second preset zoom ratio of the digital photographing apparatus, then a zoom ratio less than the first zoom ratio is used as the second zoom ratio and a zoom ratio less than the second zoom ratio is used as the third zoom ratio.

20. The method of claim 11 , wherein (a) the initially obtaining data comprises performing auto-focusing on a subject,

wherein additional auto-focusing is not performed and information on the auto-focusing performed in (a) the initially obtaining data is used when data regarding a still image is obtained in another operation that is not (a) the initially obtaining data.

21. A non-transitory computer-readable storage medium that stores a computer program for executing a method of controlling a digital photographing apparatus having a zoom function, the method comprising:

(a) initially obtaining data regarding a first still image at a first zoom ratio;

(b) automatically obtaining data regarding a second still image at a second zoom ratio that is different from the first zoom ratio, after (a) the initially obtaining data is performed; and

(c) further automatically obtaining data regarding a third still image at a third zoom ratio that is different from the first and second zoom ratios, after (b) the automatically obtaining data is performed; wherein,

if the first zoom ratio

is greater than a first preset zoom ratio that is greater than a minimum zoom ratio of the digital photographing apparatus,

and

is less than a second preset zoom ratio that is less than a maximum zoom ratio of the digital photographing apparatus,

then

one of the second and third zoom ratios is a zoom ratio less than the first zoom ratio

and

the other of the second and third zoom ratios is a zoom ratio greater than the first zoom ratio.