Shopping for a new lens: Lens Aperture
Hey guys. Welcome back to our second post in Shopping for a new lens article series. Last time we talked about Image Quality, which you can check out right here if you haven’t already done so. Today we will be talking about Lens Aperture, which is among the most important things you might wanna look for when adding a new lens to your collection. What is aperture? Most simply put, aperture is a hole or an opening in the lens controlling how much light travels through hitting the film or digital sensor and recording an exposure. In combination with variations of shutter speed and ISO settings, the aperture size will regulate the film’s or...
Read MoreDigital Imaging Artifacts: Image Noise
Hello and welcome back to the second post in our Digital Imaging Artifacts series. Our first post in the series talked about Image Aliasing & Color Moiré. If you haven’t checked it out yet, you can do so right here. As promised, today we’re gonna be talking about Image Noise. Noise in digital images has always been one of the most troubling dilemmas photographers have to deal with. Noise can be seen as low-frequency irregular arrangements of color patches (as illustrated in the image below), and can also be more bothering if combined with other image color artifacts. Noise in digital photography can be thought of as grain in film photography....
Read MoreDigital Imaging Artifacts: Image aliasing & color moiré
Today we’re gonna start learning about various image problems and draw backs that are most associated with digital imaging systems and the whole revolution of digital sensors. I’m going to expand these problems over a series of posts, starting today with Image Aliasing and Color Moiré. Image aliasing occurs when attempting to sample a high frequency signal onto a lower frequency sampling medium. When an exposure is made, the captured scene is sampled on discrete spatial image positions. If the highest frequency in the scene exceeds the sampling frequency of the digital imaging system, aliasing can occur producing evident moiré patterns. Moiré...
Read MoreCreative Commons Explained
Creative Commons, or CC, is a nonprofit corporation dedicated to making it easier for people to share and build upon the work of others, consistent with the rules of copyright. It provides free licenses and other legal tools to mark creative work with the freedom the creator wants it to carry, so others can share, remix, use commercially, or any combination thereof. CC provides free, easy-to-use legal tools that give everyone from individual creators to large companies and institutions a simple, standardized way to grant copyright permissions to their creative work. The Creative Commons licenses enable people to easily change their copyright terms from the default...
Read MoreEXIF DATA
EXIF, which stands for exchangeable image file format, is an image meta data that your camera attaches to every photo that you take, telling you the settings your image was taken with such as, aperture, shutter speed, ISO, and lens focal length settings. This data, now available in most digital compact and SLR cameras, can then be used to figure out what went wrong with your image setting or how your shot could have been made better. This data can also be used as evidence that these images are actually yours (In case someone tried to use them without your permission). How to view your EXIF data? To be able to view your images EXIF data, you first need to download...
Read MoreFine Art Photography
Art photography shares similar concerns with other photographic industries. The artist must have a product, a market, and a fan base. Many fine art photographers are graduates of national art colleges and universities, and have a thorough background in historical and contemporary conceptual art practice, as well as a vital awareness of art history and theory. The product, the art work, will be driven variously by a commitment to a particular theme or visual perception and may be linked to a particular social observation or critique. The successful artist must find conservators and galleries interested in displaying their work, as well as an audience willing to...
Read MorePhotography: Visual Perception
If you are really going to progress as any kind of photographer, in addition to technical expertise you need a strong visual sense (something you develop as an individual through practice and knowledge). This should go beyond compositional rules and picture structuring to include some understanding of why people see and react to photographs in different ways. The latter can be a lifetime’s study, because so many changing influences are at work. Some aspects of reading meaning from photographs are blindingly obvious… Others much more subtle. However, realizing how people tend to react to pictures helps you to predict the influences of your own work – and...
Read More
