Digital camera sensitometry C014 / 2085
Wall Art and Photo Gifts from Science Photo Library
Digital camera sensitometry C014 / 2085
The imaging characteristics of a digital camera can be assessed by using the sensitometric methods developed for silver-based photographic systems. The DSLR camera has been set up to photograph a calibrated transmission step wedge consisting of a series of neutral densities ranging, on a logarithmic scale, from a minimum density of 0.08 to a maximum of 3.08 in 21 steps each increasing by 0.15. This represents a luminance range of 1000 to 1. A characteristic curve can be constructed by plotting the pixel values of the incremental steps obtained from imaging software against the relative luminance of the grey scale. From this the dynamic range, or useful exposure range, can be determined, . The speed or sensitivity of the camera can also be measured, as well as the effects of photo-imaging software manipulation. For digital scanners a reflection step wedge is used
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 9226977
© SHEILA TERRY/SCIENCE PHOTO LIBRARY
Calibration Densitometry Density Digital Camera Photographic Pixel Reflection Scanner Sensitivity Speed Transmission Dslr Logarithmic Luminance
EDITORS COMMENTS
This print titled "Digital Camera Sensitometry C014 / 2085" showcases the intricate process of assessing the imaging characteristics of a digital camera. In this image, a DSLR camera has been meticulously set up to capture a calibrated transmission step wedge, which consists of a series of neutral densities ranging from 0.08 to 3.08 on a logarithmic scale. By plotting the pixel values obtained from imaging software against the relative luminance of the grey scale, an informative characteristic curve can be constructed. This curve allows for determining the dynamic range or useful exposure range provided by the camera and also enables measuring its speed or sensitivity. The significance of this sensitometric method lies in its ability to evaluate not only the effects of photo-imaging software manipulation but also how different scanners perform using reflection step wedges instead. It provides valuable insights into various aspects such as density, calibration, pixel behavior, and overall image quality. Captured by Sheila Terry for Science Photo Library, this visually striking print offers viewers a glimpse into the technical intricacies involved in understanding and optimizing digital cameras' capabilities. It serves as a testament to both scientific curiosity and technological advancements that continue to shape our modern world's visual landscape.
MADE IN THE USA
Safe Shipping with 30 Day Money Back Guarantee
FREE PERSONALISATION*
We are proud to offer a range of customisation features including Personalised Captions, Color Filters and Picture Zoom Tools
SECURE PAYMENTS
We happily accept a wide range of payment options so you can pay for the things you need in the way that is most convenient for you
* Options may vary by product and licensing agreement. Zoomed Pictures can be adjusted in the Cart.
