Shutter Speed
Shutter speed is one of the three key elements to Exposure. Without proper Shutter Speed manipulation, it is impossible to achieve the image you want. Varying the speed of the shutter will yield vastly different results. Shutter speed is expressed in fractions of a second, or seconds themselves.
- Fast -
A shutter speed of 1/250th or higher is considered high. A shutter of this speed will begin to freeze motion and result in an image where any movement will appear still. the faster the movement of the subject, the higher speed that is required.
- Slow -
Slow shutter speed (or "long exposure") on the other hand provide a much more creative result. By limiting the aperture to a small size the camera must open the shutter for a longer amount of time to allow light to enter and reach the sensor and correctly expose the image. When used correctly this can yield some very creative and interesting results.
Zooming
Zooming is a not so well used creative technique. If the photographer has a zoom lens it is possible to focus on the subject, set a relatively slow shutter speed and then zoom the lens in or out whilst taking the shot. This technique provides a burst effect which, when used correctly, can be very interesting, making any lights in the frame appear as if they are moving outward, and give that classic "warp speed" effect.
Panning
Panning or "Tracking" is yet another modified use of long exposure. It is achieved by using a shutter speed slower than 1/60th of a second and then following the subject with the camera to have it sharp. The ideal is to have the subject perfectly sharp and the background blurry, which gives a sense of movement but also displays the subject perfectly. The technique is most commonly found in sports like, motorsports, football and cycling.
Double Exposure
A double exposure is where two images are combined to form a blend on a single image space. This is most commonly done digitally in a programme like photoshop but it can also be done 'in camera' with cameras that are capable, like a Nikon D800. It is achieved digitally by opening both images in the same document in Photoshop, masking them then using a blend mode such as Overlay then painting them via the masks until the desired effect is achieved.
Distortion
Image distortion can reference a lot of things. A very wide angle lens produces distortion which can be corrected in post processing. Different materials can produce light distortion which can affect the subject. Reflections are distortions as well as refractions. Some Image distortions are desired creative effects like diffusion and reflection, whereas the distortion created by a fish eye lens may not be.
- Diffusion -
Diffusion is when the light that is being photographed is being shining through a material that makes it softer and more even. It is a highly desired effect when doing portrait photography as it gives a much more pleasant effect on the face.
- Reflection -
Reflection is the result of light bouncing off a surface and as a result we can see another object in the reflected one. it is a very easy distortion technique to use as all it requires is water or other reflective surface. Reflections can be used as a mirror of sorts, particularly effective in landscapes, but they can also be used creatively.
- Refraction -
Refraction is when light is bending through an object or surface and it appears distorted. Water and glass or both together are common ways of photographing refraction. It is most effective when there is a plain pattern behind the subject such as grass or stripes.
Mono-toning
Mono-toning refers to an image being various tones of one colour. These types of effects were originally achieved using various darkroom techniques, but nowadays it is done through Photoshop.
- Black & White -
The correct term for black and white os "monochrome". The first photographs that were ever taken were monochromatic and even today it is still one of the most common and effective ways of editing an image. Even when colour photography became available, monochrome was still a very popular choice as it provided vastly greater sharpness and were less expensive to develop. Taking the element of colour out of an image gives the viewer one less thing to consider when looking at the photograph which, when used correctly, can draw attention to other elements making for a much more visually impacting shot.
- Sepia -
Sepia is another form of Mono-toning. It is mostly associated with photographs of the 19th and 20th century which used it to give a warmer tone to the photograph but also to prolong the life of the print and protect it from pollutants, sometimes up to fifty percent longer. In modern times it easily re-creatable through photoshop but is much less common as there is no need for it although it is still used to create a certain atmosphere or to replicate the old style.
- Cyanotype -
Cyanotype is an even less common method of mono-toning than sepia and is rarely seen nowadays. This could be due to the fact they do not hold up well to the test of time and tarnish easily. the method was discovered in 1842 and was popularised by Anna Atkins as a photographic technique. At the time it was a simple and cost effective way of producing large amounts of copies which is why it was adopted by engineers and architects to produce their plans, now known as "Blueprints".
- Hand Tinting -
Hand tinting or hand colouring refers to when colours are manually added to a black and white photograph by hand to either make the photograph appear more realistic or for artistic purposes. It was originally done using water colour paints, oils, crayons or pastels using brushes, cotton swabs or with fingers. If using photoshop it can used to create a colour pop image.
Solarisation
Solarisation ( or the "Sabattier Effect" when referring to a negative ) is a photographic phenomenon where the darks and lights of a photograph are reversed and create a tonally reversed image. It is called solarisation after the way the image looks as if has been heavily overexposed.
Filters
Lens filters for digital cameras have a range of uses, the most common types of filters are UV (Ultraviolet) used to protect the sensor against harmful UV rays. Polarising filters are used to reduce glare on reflective surfaces and provide a more pleasing photograph. ND (Neutral Density) filters are used to reduce the amount of light entering the camera to enable long exposures.
- Polariser -
A polarising filter is a filter that usually screws on to the end of a lens that reduced glare on reflective surfaces as well as slightly increasing contrast, darken skies and enhance colour. They are most commonly used in landscape photography and in long exposures to reduce the glare on reflective surfaces. Polarisation can also be applied digitally in Photoshop but it will not be ale to remove reflections after the shot has been taken.
- Neutral Density -
Neutral Density or "ND" filters are filters which go on front of the lens and reduce the amount of light getting into the sensor. They are most commonly used when photographing bodies of water like the sea, lakes, rivers and waterfalls. All ND filters are neutral grey so that there is no colour cast on the images and it is just the amount of light that is altered. The effect that most people desire from ND filters is blurring water through long exposure.
Special Effect Filters
Digitally Layered Image
Digitally layered images are created in photoshop using the layers tool. Using layers Allows the user to experiment with different effects without destroying the original image. Using multiple layers also adds a great deal more control and customisation as each layer can individually edited.
HDR
HDR stands for High Dynamic Range. HDR is a technique used to produce a higher range in luminosity than would otherwise be achievable with standard camera equipment. Some digital cameras have HDR capabilities built in, for others which do not HDR can be attained by taking a correctly exposed image then two more one under exposed and one overexposed. These three images can then be blended in photoshop to create a digital HDR.
Focus Stacking
Focus stacking is when the user will take multiple exposures of a subject but with each different shot the focus point is moved and when all the shots have been taken the images are stitched together in photoshop to crete an image that is entirely in focus. This technique is commonly used in studio work when the final image s going to be used for advertisement or going to be displayed on a billboard etc.
References
https://en.wikipedia.org/wiki/Shutter_speed
https://digital-photography-school.com/using-the-zoom-effect/
https://digital-photography-school.com/the-art-of-panning/
http://www.hongkiat.com/blog/double-multiple-exposure-photography-tutorials/
https://en.wikipedia.org/wiki/Perspective_distortion_(photography)
https://en.wikipedia.org/wiki/Monochrome_photography
http://www.thephotoforum.com/threads/introduction-to-hand-coloring.147257/
https://feltmagnet.com/photography/Photography-The-Sabattier-Effect
http://www.techradar.com/how-to/photography-video-capture/cameras/5-essential-photography-filters-and-why-you-can-t-live-without-them-1320801
https://helpx.adobe.com/photoshop/using/layer-basics.html