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Setting on some cameras that allows the user to set a specific aperture value (f-number) while the camera selects a shutter speed.

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Setting determines how much light is allowed to enter the lens and pass through to the film (analog) or CCD or CMOS sensor (digital).

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Photographic lens can be adjusted to control the amount of light reaching the film or image sensor.

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Aesthetic quality of the blur produced in the out-of-focus parts of an image produced by a lens.

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Distance between the lens and the image sensor when the subject is in focus, usually stated in millimeters.

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ocus range or effective focus range, is the distance between the nearest and farthest objects in a scene that appear acceptably sharp in an image.

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Digital single-lens reflex camera.

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Set of data that describes and gives information about other data.

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Stabilization technology that minimizes blur caused by camera shake.

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Small image representation of a larger image, usually intended to make it easier and faster to look at or manage a group of larger images.

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One of the main settings on your camera, and it lets you manually control shutter speed, aperture, and ISO, the auto modes and semi automatic modes on your camera are great places to start.

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Camera calculate both shutter speed and aperture,Aperture priority or Aperture value enables manual control of the aperture, and shutter speed is calculated by the camera for proper exposure.

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Manually set the aperture, shutter speed and choose the right type of film for their cameras.

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Refers to a setting on some cameras that allows the user to choose a specific shutter speed while the camera adjusts the aperture to ensure correct exposure.

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Calculate both shutter speed and aperture.

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Camera makes its best guess on a shot by its shot basis.

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Light sources can be divided into natural light sources, such as the sun, stars, lightning, and bio luminescence, and artificial light sources.

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Process that records the glow or visible light given off by certain substances when they are irradiated by ultraviolet rays.

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Sets things as fairly "normal" white balance settings.

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Producing a flash of artificial light, major purpose of a flash is to illuminate a dark scene.

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This is setting generally warms things up.

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Some darkness that interrupts the rays of light.

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Focus on a subject.

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Technique of taking several shots of the same subject using different camera settings.

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Number that represents a combination of a camera's shutter speed and f-number.

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Determine which shutter speed and f-number should be selected for an optimum exposure, given a certain lighting situation and film speed.

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Focus free lenses or auto focus for focusing, automatic systems for setting the exposure options, and have flash units built in.

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Exposure time is the length of time when the film or digital sensor inside the camera is exposed to light.

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Long exposures at night, main advantage is that it allows the photographer to achieve shutter speeds longer than the 30 seconds.

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Streaking of rapidly moving objects in a still image or a sequence of images such as a movie or animation.

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Photographic shot one is aiming for will depend on when a mono-pod should be used.

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Moving a hand-held light source while taking a long exposure photograph, either to illuminate a subject or to shine a point of light directly at the camera, or by moving the camera itself during exposure.

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I love expanding my photographic abilities and learning new ways to be creative, it just isn't as easy as it sounds some time. Light painting photography seems to be all the rage now but it is something I tried when I shot my first photos of fireworks back in 1997. It just looked so neat that I had to try it again and again before I finally figured out what was going on photographically.

What is really interesting is if you look at the definition of photography, it needs no other word (like "light") in front of it to give it meaning.

pho·tog·ra·phy [fuh-tog-ruh-fee] noun
the process or art of producing images of objects on sensitized surfaces by the chemical action of light or of other forms of radiant energy, as x-rays, gamma rays, or cosmic rays.

In other words, photography is "painting with light". Without light in pure darkness photography actually isn't possible, but add any light to anything, and you can record what that light does on a specific medium or surface.

Light paint photography (more accurately called low light photography), or just "light painting" to use the trendy phase at the moment, uses just about the same techniques as lightning photography, or fireworks photography (see a few examples at How to Successfully Photograph Lightning // Equipment and Techniques, Auburn 4th of July Fireworks Celebration // Photos, or Do it Yourself Low Light Fireworks Photography). Coming up I might write a how-to do light painting photography just for the few differences it has over the above posts, so stay tuned.

A recent photo shoot with b/ turned out to produce a whole lot of duds for the intended purpose, but it was loads of fun trying. Below are two of my favorites from that particular night. I have several other "favorites" but will save them for later. This is really one of the easiest forms of photography, for me, since you can control most all the variables and bring the technique down to just holding a button down for the "painting".

One thing I mentioned above is to try something new and get creative. I don't know about other "creative" types (and I don't really consider myself all that creative) but I need to have the right atmosphere and surroundings to get my brain thinking outside the box. This was something we tried that didn't work all that well for what we were doing, but taking the time to try keeps you thinking.

One other way to get creative, go to where the creative people go and learn from them. In this case, this week, that will be the Catalyst Conference (see their really cool blog here) in Atlanta for me (and gotroot). Catalyst is a leadership conference for what is the Church of tomorrow (see about), something I have been looking forward to for quite a while.

Tomorrow I will update this information in more detail and how to follow along. I will be spending a good bit of my time photographing the event as well (sorry in advance to those going with me) and will post event photos here on Thrusday and Friday as soon as I can get them uploaded. In the mean time, I leave you with some light painting.

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Light Painting with Sparklers and Some Low Light Photography

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I love expanding my photographic abilities and learning new ways to be creative, it just isn't as easy as it sounds some time. Light painting photography seems to be all the rage now but it is something I tried when I shot my first photos of fireworks back in 1997.

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Common way of associating the three variables that determine the exposure of a photograph: aperture, shutter speed, and ISO. One must balance all three of these to achieve a desired result, an adjustment of one requiring adjustments of at least one of the others.

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Control by which you temporarily adjust your camera's definition of what is "properly exposed". Put simpler, it's a way to force the camera to make your photos darker or brighter to the degree that you tell it.

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Several photographs are captured in quick succession by either pressing the shutter button or holding it down.

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Technique whereby the frequency at which film frames are captured is much lower than that used to view the sequence.

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Audio editing software in audio. Differential GPS post-processing, an enhancement to GPS systems that improves accuracy.

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Slow-shutter photography involves using a long-duration shutter speed to sharply capture the stationary elements of images while blurring, smearing, or obscuring the moving elements.

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Digital images, film images, and other types of images. Higher resolution means more image detail. Image resolution can be measured in various ways.

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Wide-angle lens that produces strong visual distortion intended to create a wide panoramic or hemispherical image the angle of view of a fish eye lens is usually between 100 and 180 degrees while the focal lengths depend on the film format they are designed for.

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Liable to cause blurring of the image.

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Televise while rotating a camera on its vertical or horizontal axis in order to keep a moving person or object in view or allow the film to record a panorama.

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Image is one in which the value of each pixel is a single sample representing only an amount of light.

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Dark reddish-brown pigment obtained from the inky secretion of the cuttlefish.

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That range of tones which lie between highlights with detail and shadows with detail.

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Normally it is assumed to be one of the brightest points in the image. Highlights are normally created by a bright or intense illumination or by various forms of diffusion or reflection. Highlights are created by any bright light source.

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Dark area where light from a light source is blocked by an opaque object. It occupies all of the three-dimensional volume behind an object with light in front of it.