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www.uk.ask.com/shopping/wratten_filters
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In black-and-white and color photography, filters such as the KODAK WRATTEN Neutral Density Filter No.
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www.uk.ask.com/shopping/kodak_wratten_gelatin_filters
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In black-and-white and color photography, filters such as the KODAK WRATTEN Neutral Density Filter No. ... Kodak Step Wedge Film for KODAK WRATTEN Photographic filters, and other quality control
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bjo.bmj.com/content/42/4/251.full.pdf
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is controlled by a neutral wedge filter W. Finally, a metal plate containing apertures 20-15-10-5-3-2-1 millimetres in diameter controls the size of the flashing light ...
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www.lunt-solarsystems.eu/index.php?id=22&L=1&tx_commerc...
www.lunt-solarsystems.eu/index.php?id=22&L=1&tx_commerce_pi1%5BshowUid%5D=761&tx_commerce_pi1%5BcatUid%5D=18&cHash=14522018d66c21a5a0cb2abd3f0842d6
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LUNT GF-1.25-1 (0558214). 1.25" Neutral Density Filter ND3.0 (1000x), to be used with the LUNT 1.25" White Light Solar-Wedge / Herschel-Wedge. € 46,00* ...
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onlinelibrary.wiley.com/doi/10.1111/j.1755-3768.1990.tb...
onlinelibrary.wiley.com/doi/10.1111/j.1755-3768.1990.tb01899.x/pdf
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The luminosity of the test field can be regulated by changing the position of a neutral wedge filter mechanically. The relative values of the test field luminosity can ...
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www.ncbi.nlm.nih.gov/pmc/articles/PMC1402802/pdf/jphysi...
www.ncbi.nlm.nih.gov/pmc/articles/PMC1402802/pdf/jphysiol01675-0056.pdf
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Fig. 1. Diagram of the apparatus and of the optical cell. F. Colour filter. Tr. Light traps. N.-T.W. Graduated neutral-tint wedge. C. Optical cell. H.-P. Photographic ...
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rolynoptics.thomasnet.com/viewitems/filters-and-accesso...
rolynoptics.thomasnet.com/viewitems/filters-and-accessories-filters/1054
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Results 1 - 10 of 10 ... Browse Circular Wedge Neutral Density Filters in the Rolyn Optics catalog including Item #, Item Name, Filter Type, Density, Diameter (mm), ...
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www.hellma-analytics.com/text/181/en/neutral-density-we...
www.hellma-analytics.com/text/181/en/neutral-density-wedge.html
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Potassium Chloride Filter, Sodium Iodide Filter and Sodium Nitrite Filter ... Compensating neutral Density Wedge; Heat-resistant; Broad band anti-reflection ...
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www.sciencedirect.com/science/article/pii/0042698983901...
www.sciencedirect.com/science/article/pii/0042698983901876
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A half mirror combined the two monochromatic lights, and the radiance of the mixed light was controlled by another neutral density wedge filter. The light was ...
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