Posts Tagged ‘exposure’
The key to creating a good photo-based service is to fill a need that isn’t being filled by any other app or website — a task increasingly difficult as more and more players enter the market. Still, once in a while someone stumbles on an idea that is just the right mix of concepts to create a service really worth your while, and Exposure seems to be just that. Read more…
Alien Skin Software’s Exposure 5 is a starting point for building stylish and creative photos that will impress even the harshest of critics. With hundreds of ideas to pick, layer and build upon there’s really no limit to what you can make. Opening an image for the first time in Exposure 5 may prove a little overwhelming with the vast array of filters there are to tinker with. Everything from a subtle film look still available at your local shop to the original daguerreotype feel. It is impressive to say the least.
Want to estimate proper exposures without a light meter and don’t mind doing some simple arithmetic? Check out this wonderful Exposure Time Tables pocket reference that was published Zeiss Ikon.
Gear reviewer Sohail Mamdani over at BorrowLenses was testing the Canon 6D and Nikon D600 last week by shooting nighttime photos of San Francisco Bay, when he discovered something strange: the DSLRs exposed the scene differently even when all the settings were identical in full manual. The photograph above was captured using the D600 at f/8, 30s, and ISO 100 (in JPEG mode).
It was almost exactly one year ago that Olympus fired then-CEO Michael Woodford and started a chain of events that culminated in one of the largest financial scandals in Japanese history. Woodford received an incredible amount of international attention for his role in the saga, since he was one of the highest ranking executives ever to turn into a whistleblower.
He may have lost his $8-million-a-year job, but he likely won’t ever need another: in addition to settling for a reported $15.5 million over the breakup, Woodford is also cashing in by writing a book that offers his account of what transpired.
Check out this awesome exposure triangle graphic found in this Exposure Guide tutorial on the fundamentals of exposure:
When these three elements are combined, they represent a given exposure value (EV) for a given setting. Any change in any one of the three elements will have a measurable and specific impact on how the remaining two elements react to expose the film frame or image sensor and how the image ultimately looks. For example, if you increase the f-stop, you decrease the size of the lens’ diaphragm thus reducing the amount of light hitting the image sensor, but also increasing the DOF (depth of field) in the final image. Reducing the shutter speed affects how motion is captured, in that this can cause the background or subject to become blurry. However, reducing shutter speed (keeping the shutter open longer) also increases the amount of light hitting the image sensor, so everything is brighter. Increasing the ISO, allows for shooting in lower light situations, but you increase the amount of digital noise inherent in the photo. It is impossible to make an independent change in one of the elements and not obtain an opposite effect in how the other elements affect the image, and ultimately change the EV.
If you’re just starting out in photography, do yourself a favor and work through the Photography Basics page over on Exposure Guide. It’s a fantastic resource.
Exposure – ISO, Aperture and Shutter Speed Explained [Exposure Guide via Reddit]
Face detection has become the snapshot photographer’s invaluable assistant in ensuring tack-sharp faces, but soon it’ll be able to add two more job responsibilities to its resume: exposure metering and speedier autofocus. Two patents recently awarded to Apple show that future iOS cameras (perhaps the next iPhone?) will have standard camera features that rely much more on face detection technology. The first patent, titled “Dynamic exposure metering based on face detection“, allows the camera to automatically select faces as the primary target for metering. In more difficult situations — group shots or people standing in front of a crowd, for example — the camera will use factors such as “head proximity” to select the primary subject.
Still shoot film? Use filters when you shoot? FilterCalc is a new Android app that’s designed to help non-TTL photographers figure out proper exposure when using filters.
This base ISO exposure calculator comes with preloaded database of almost 500 filters. By selecting the actual ISO value and filter type, the app computes base ISO to be used with the light meter resulting in proper exposure.
FilterCalc can compute ISO compensation in increments of 1/3, 1/2, 2/3 and full stop EV. You can select compensation values by stops, by filter factor, by preloaded filter brand/type, or add your own custom data.
The app is free and can be downloaded over on Google Play.
FilterCalc [Google Play]