534805
172
Zoom out
Zoom in
Previous page
1/186
Next page
Concepts in Photography
172
Aperture
The aperture, a hole that controls the amount of light that enters the camera, is one of the
three factors that determine the exposure. The aperture housing contains thin and metal
plates that open and close to let light through the aperture and into the camera. The size
of the aperture is closely related to the brightness of a photo: the larger the aperture, the
brighter the photo; the smaller the aperture, the darker the photo.
Darker photo
(aperture opened slightly)
Brighter photo
(aperture opened wide)
The size of the aperture is represented by a value known as an F-number. The f-number
represents the focal length divided by the diameter of the lens. For example, if a lens with a
50 mm focal length has an f-number of F2, the diameter of the aperture is 25 mm. (50 mm/25
mm=F2) The smaller the f-number, the greater the size of the aperture.
The opening in the aperture is described as the exposure value (EV). Increasing the exposure
value (+1 EV) means the amount of light doubles. Decreasing the exposure value (-1 EV)
means the amount of light halves. You can also use the exposure compensation feature to
fine-tune the amount of light by subdividing exposure values into 1/2, 1/3 EV, and so on.
+1 EV
F1.4 F2 F2.8 F4 F5.6 F8
-1 EV
Exposure value steps
172


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Samsung EK-GN120 - Galaxy NX at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Samsung EK-GN120 - Galaxy NX in the language / languages: English as an attachment in your email.

The manual is 147,95 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

Others manual(s) of Samsung EK-GN120 - Galaxy NX

Samsung EK-GN120 - Galaxy NX User Manual - German - 186 pages

Samsung EK-GN120 - Galaxy NX User Manual - Dutch - 186 pages

Samsung EK-GN120 - Galaxy NX User Manual - French - 186 pages


The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info