Discussion on Image Greyness and It's Improvement How to Avoid Photographic Processing Fog 照片灰雾及其改进探讨如何防止冲洗加工灰雾
As a hole-traping dopant, formate can enhance the photographic sensitivity of the emulsions as high as 3& 8 times without an increase in fog density. 实验发现:作为正空穴捕获剂,适当计量的甲酸盐在不增加乳剂灰雾的前提下,可使上述乳剂的感光度提升3&8倍。
How to Avoid Photographic Processing Fog 如何防止冲洗加工灰雾
Selenium and Tellurium compounds used as chemical sensitizers can increase significantly the speed of photographic emulsions, but can also draw the shortcoming of increasing the fog and decreasing the contrast. 硒碲化合物用作化学增感剂可以显著提高感光乳剂的感光度,但也带来增加灰雾和降低反差的缺点。