Nature Love Presets + Tutorials by Gamander López 1.05k5 Unlock the Power of Lightroom Range Masks to Create Powerful Landscape Photos By Mark Denney 1.19k5 Landscape Photography: Shooting and Editing Long Exposure Landscape Photos with Zoltán Nagy 1.18k5...
We have a lot of tools to measure exposure, but to me, the light meter is the simplest and truest. Every cinematographer has a different way of checking exposure in a shot, whether it's a single tool (such as false color), a combination of tools or no tools at all. Some just look...
An economical approach to using diazo paper for measuring accumulated photosynthetic photon flux density (PPFD) was tested to determine if the amount of PPFD measured with a light meter is highly correlated with the number of exposed sheets of diazo paper under various conditions. An analysis of ...
Good hand-held meters have multiple modes: a spot metering mode which is a reflective reading (usually 2 degrees or less), an incident mode using the meter’s light dome, and one or more flash modes. It is imperative you learn the proper use of these modes in order to be successfu...
Take a few minutes to characterize a light dependent resistor (LDR) and you can build a simple and reasonably accurate light meter can be built using an LDR and an Arduino.
PROBLEM TO BE SOLVED: To manufacture a light emitting material capable of directly producing on a semiconductor substrate in high light emitting efficiency, and controlling the light emitting wavelength in rapid emitting light attenuation rate and light emitting element using this material at low cost....
A paint gloss meter is a specialized instrument designed for measuring the gloss level of surfaces, primarily those coated with paint. Gloss, a key attribute in the quality control of surface coatings, refers to the ability of a surface to reflect light in a specular (mirror-like) direction....
Last September, SDGSAT-1 captured the world's first atlas of urban nighttime light remote-sensing data, providing support for the research on urban sustainable development. The atlas contains 10-meter resolution nighttime light data from 147 cities in 105 countries around the world.■...
We display a circular mask on the SLM containing a linear phase gradient and place an iris in the image plane to block the zeroth-order light. Only the power of the first-order spot caused by the SLM phase pattern is measured using a power meter. We then take a camera image of this ...
In the experiments, the FMCW radar and the camera were situated side-by-side at a distance of one meter in front of the test subject. The heart belt was placed around the chest of the subject. The data processing and validation from the three devices are performed offline by in-house sof...