Advanced illuminationbacklight

Focal length is a measurement of the distance between the center of a lens and the point where light rays converge to form a clear image. It is typically measured in millimeters (mm) and is an important factor in determining the magnification and field of view of a lens.

Bestlight backlight

There is a huge difference between backlight and background light.  Backlight is simply “illumination from behind.” Whatever the subject is, it’s literally taking a light and pointing it at the subject from behind.  Having a really powerful backlight can result in creating a silhouette.

The size of the image sensor can affect the effective focal length of a lens. A larger sensor will capture a wider field of view and result in a shorter effective focal length, while a smaller sensor will capture a narrower field of view and result in a longer effective focal length.

The focal length of a lens is a fixed characteristic and cannot be changed. However, the field of view and magnification can be altered by using different lenses or adjusting the distance between the lens and the image sensor.

Backlit lighting photography

Hopefully this stops any confusion you may have had between backlighting and background lights.  It seems simple enough but I’ve had a few people i’ve had to mention the difference to, so I thought this was a great topic for a post. Keeping it short and sweet

Background lighting is using light to illuminate your background. Virtually any light that is turned on in your background is a background lighting.  Sometimes your background light can hit your talent or subject.  A good practice is learning how to match those lighting scenarios to your backlight so your backlight is motivated. That helps the scene feel more real and less artificial.

Ledlight backlight

The focal length of a lens is directly related to its magnification power. A shorter focal length results in a wider field of view and less magnification, while a longer focal length results in a narrower field of view and greater magnification.

Focal length can be calculated by dividing the distance from the lens to the image sensor (or film) by the distance from the lens to the subject. This is known as the thin lens equation: 1/f = 1/di + 1/do, where f is the focal length, di is the distance from the lens to the image sensor, and do is the distance from the lens to the subject.