Bulb (B) is a feature present on all Canon EOS cameras and allows you to use shutter speeds slower than the standard maximum of 30 seconds. All EOS cameras allow you to set a shutter speed as slow as 30 seconds. If you need longer exposure times you can use the Bulb mode.

a three-legged stand for supporting a camera or other apparatus.

Long exposure photography is the name given to the technique in which the camera's shutter is left open during a somewhat lengthy period of time. The resulting image captures the trail of moving objects in front of the camera, while showing still elements razor sharp

Light painting is the art of creating photos by setting long exposure times on a camera and using a moving light source to “paint.” A light painting photographer opens a camera's shutter and keeps it open as they draw in the air with a light source.

Panning is a photographic technique that combines a slow shutter speed with camera motion to create a sense of speed around a moving object. It is a way to keep your subject in focus while blurring your background. Panning is typically done on a subject moving horizontally, such as a moving car, or a running dog.

Burst mode, also called continuous shooting mode, sports mode, continuous mode, or burst shot, is a shooting mode in still cameras where several photos are captured in quick succession by either pressing the shutter button or holding it down.

Partial metering covers only the centre 6.2% of the frame in the viewfinder, thus providing precise metering only for the subject. When the background is brighter than the subject due to reasons like back lighting, this metering mode is particularly useful. It is useful for back-lit shots or tiny subjects.

In photography, painting, and other visual arts, middle gray or middle grey is a tone that is perceptually about halfway between black and white on a lightness scale; in photography and printing, it is typically defined as 18% reflectance in visible light.

Any photo that uses shadows as a prominent part of the composition — to enhance the contrast of a subject or as the subject itself

Within The Realm Of Photography, Midtones Refer To The Tonal Range That Lies Between The Extreme Highlights And Shadows, Lending A Sense Of Depth, Dimension, And Naturalness To A Photograph.

Highlights are the lightest elements in an image, whereas shadows are the darkest areas. Dynamic range is the ratio between those vivid highlights and dark shadows, from bright white to pure black. That range is key to an image's depth and drama. If a photo has poor dynamic range, the image can appear flat or gray.

Technically speaking, sepia toning is a chemical process that converts the metallic silver in the emulsion of a photographic print into a silver sulfide compound. This changes the color of the resulting image and makes the photo more resistant to environmental pollutants. This helps photos hold up over time.

Workspace Switcher also displays the application windows and dialogs that are open in your workspaces. The panel application displays the workspaces in order from left to right across the rows of the panel application.

a thin and usually oval or oblong board or tablet with a thumb hole at one end, used by painters for holding and mixing colors. any other flat surface used by a painter for this purpose.

A menu bar is a feature of most computer graphical user interfaces that implement windows. The menu bar allows the user to have point-and-click access to window-specific functions, such as saving a file, copying text, or opening a help window.

SOOC is a photographer's abbreviation that stands for “Straight Out Of Camera.” It refers to images that are shown exactly as they were captured by the camera, with no post-processing applied whatsoever

A prime lens is a lens with a fixed focal length, typically with a maximum aperture of f/1.2-f/2.8. They're fantastic for filmmakers and photographers who want the best optical quality and prefer a shallower depth of field in their images and footage. Popular prime lens focal lengths are 35mm, 50mm, and 85mm.

Vibration Reduction (VR) is an image stabilization technology that minimizes blur caused by camera shake. Using a VR NIKKOR lens can result in sharp images in low light, under windy conditions or when using a physically large NIKKOR lens, at up to four stops slower with a VR lens than a non-VR lens.

Advanced Photo System type-C (APS-C) is an image sensor format approximately equivalent in size to the Advanced Photo System film negative in its C ("Classic") format, of 25.1×16.7 mm, an aspect ratio of 3:2 and Ø 30.15 mm field diameter.

What is a reflector? A reflector is a photography tool used to redirect light to a subject or scene. It doesn't create light; rather, it redirects light that is already there. A reflector is good for creating fill light or lessening shadows.

A scrim or gauze is often a very light textile made from cotton, or sometimes flax or other materials. It is lightweight and translucent, which means it is often used for making curtains. The fabric can also be used for bookbinding and upholstery. Scrims have seen extensive use in theatre.

The Move tool helps you position selected content or layers when customizing your work. Select the Move tool (V) . Use the Options bar to customize tool settings, like Alignment and Distribution, to get the effect you want. Click on an element—like a layer, selection or artboard—to move it

The Spot Healing Brush tool magically removes unwanted spots, marks, or small objects in your image. Photoshop selects and replaces pixels from another part of your image to blend in seamlessly.

The Healing Brush and Patch tools allow you fix imperfections, like scratches, wrinkles, dust spots, etc., causing them to disappear into the surrounding image. They work very much like the cloning tools. You sample pixels in one are of an image, then paint over another area replacing it with the sampled pixels.

The zoom tool is used for magnifying a selected part of the image. The first option is called Auto-resize window. By default it's disabled. By enabling it, it will resize the window according to the size of the magnified area.

The Straighten tool is designed for ease of use: You draw it across a line that's supposed to be straight, and then Photoshop will do the actual straightening for you. So find the reference line that I encouraged you to determine in Step 1, then drag the Straighten tool across!