Focal Length Experimentation

A camera lens is composed of multiple end elements assembled and fitted together in a tube called a lens barrel.
This objective lens is known as an 'objective' or compound lens.
A camera lens is either designated as primed or zoom.
Prime lenses tend to be higher quality whilst zoom lenses offer more flexibility.

Focal Length: The distance between the centre of a lens or a curved mirror and it's focus.

FOV: The field of view (FOV) is determined by the angle of view from the lens out to the scene and can be measured horizontally or vertically.
Larger sensors or films have wider FOVs and can capture more of the scene

In 35mm photography, lenses with a focal length of 50mm are called normal because they work without reducing or magnifying and creates images the way we see the scene with our naked eyes (same picture angle of 46 degrees).

Wide angle lenses (short focal length) capture more because they have a wider picture angle, telephoto lenses (long focal length) have a narrower picture angle.

For our focal length experimentation photography we took photographs of the same person in the same place using different zooms, we used the zoom lens at 17mm, 28mm, 35mm, 50mm, and 70mm. We then took photographs starting from 70mm and zoomed out whilst keeping subject in the same headspace.