carbon rods
cylindrical rods made of carbon granules bound together into a solid form for use in carbon arc lamp.
Rods, the cells of the first type are sensitive to light intensity and are what we use to perceive shapes and contours. The other kind of cells, cones are responsible for color vision.
Rods - receptors forming part of the retina at the back of the eye sensitive only to variations in brightness, not color.
Roll film - refers to 120, 220 and 620 film formats.
The rods are too sensitive for the bright light of day. Therefore, during the day, luminance is determined by the cones. To determine day luminance, the brain simply adds the signals from all three types of cones (i.e.
Dowsing rods - usually constructed of brass and bent into an L-shape, dowsing rods may be used by those who feel they help indicate the presence of ghosts and spirits.
Insert two two-stud rods into the side holes on a second ball-joint socket. Attach two ball-joint balls to the ends of these rods. Attach this to the ball-joint on the body.
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We experience color by means of two kinds of sensors in the retina of our eye: These are known as rods and cones. The former ensure vision at lower levels of illumination, while the latter account for higher light levels and the color that we see.
One Hour of Blindness: Retinal rods take 30-40 min to dark adapt (i.e. achieve their maximal sensitivity so they can detect single photons) after being exposed to bright light. This is true for both birds and mammals.
'We had two tripods that were connected by the rods and Magic Arms,' he continues. 'The short tripod behind the main one really does nothing, except to keep the front tripod stable.
These are usually thin metal rods coated with a combination of fuel, an oxidizer, powdered metal - usually iron, steel, or aluminum that creates the sparks, and a binder to hold all this stuff onto the rod.
Printing ancillaries like lint free cotton gloves, glass rods for stirring, printing scale wedges, dodging and burning equipment for color finishing of photographs, exposure meters or timers, funnels, safety photographic paper containers, ...
As its name suggests, the OctoDome has 8 rods, each attached to a corner of the provided speed-ring by a simple slide-in action. The resulting shape of the OctoDome is nearly circular, providing very pleasing catch-lights in the eyes.
Our retina is build with rods and cones. Rods offer much better night vision, but far less color sensitivity than cones. Since our eyes have to keep a fixed exposure time, this is nature’s elegant trade off.
If outdoors do carry a wind break which could be 2 thin metal rods as hight as the highest flowees you plan to sueand some tight weave fabric to block the wind.
Point source lamp
An arc type lamp producing light from a small gap between two carbon rods.
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More Photographic Terms ...
-Arc lamp - photographic lamp in which light is produced by passing an electric current through two carbon rods.
-Argentotype - Mid-19th century silver print process, on which the kallitype and sepia paper processes are based.
The octagonal soft boxes fold up very nicely but I found it physically impossible to assembly them completely. I was able to assemble 4 of the support rods to create a diamond soft box and because the diffuser attaches with velcro this still produced ...
With the Photoflex® patented Quick Release Corner (QRC), setup and teardown of your studio gear has never been simpler. The QRC allows you to quickly remove the rods from your SoftBox giving you more time to spend with your clients or finishing your ...
I grabbed the Basic Connector (mindful of which side the threaded receiver was on so that I could orient the LiteDome vertically) and inserted the rods of the Extra Small LiteDome into each of the four holes of the Connector. [figure 10] ...
Monochromats II: people with only one variety of the cones functioning in addition to the rods; both types of monochromats see colors only as variations in intensity, that, is analog to black-and-white or unicolored images ...
The crucial points in "lead-free circuit boards" are the selection of lead-free bonding solder (cream solder for reflow, flow solder rods, and manual solder wire), and the bonding technology used.
come apart then you can try applying a little heat with a heat gun and try to free the parts as they expand. This treatment is a lost resort, heat should not be excessive and should not be used anywhere near plastic parts or very fine control rods ...
 See also: Light, Time, Image, Photograph, Color
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