Filters: Advancing Your Photography Filters are pieces of glass or plastic that are inserted in front of the lens to produce photographic…
Extenders & Teleconverters Teleconverters or Extenders are attachments placed between the camera and lens that increase the focal length of the…
Exposure Triangle: The Basics of Photography Despite the huge technological advances in digital imaging in the past few decades, the basic mechanics of taking…
Exposing to the Right Exposing to the right (“ETTR”) is, in some circles, a pretty contentious issue—in part because there have been…
Electromagnetic Spectrum The visible spectrum represents only a tiny proportion of the entire electromagnetic spectrum. There are three important properties…
Dynamic Range & Clipping The dynamic range of a camera (or printer, or monitor) is the ratio between the minimum and maximum…
Diffraction in Camera Lenses The effects of diffraction can be seen in the right-hand image below (point of focus was identical in…
Depth of Focus Depth of field refers to the distance behind and in front of the point of focus that appears…
Crop Factor & Sensor Size With 35mm film cameras, the “sensor” size was the size of the film negative itself—36 x 24mm (incidentally,…
Understanding Colour Temperature & White Balance Colour temperature is an important aspect of photography in ensuring accurate colour reproduction in a scene. Incorrectly setting…
Camera Settings Once you’re familiar with the exposure triangle, you’re ready to switch out of Auto mode. No matter what brand…
Bit Depth & Image Posterization The bit depth of an image determines how many unique colours are available to create the image (even…