Whether you are a seasoned professional or an enthusiast, Porolis Glossary is an invaluable resource that will enhance your understanding, streamline your research, and enrich your communication within the gemstone industry. With our expertise in photomicrography, AI and blockchain, you also learn specialized knowledge on how digital gemmology is applied and transforming the industry.
A fall-off in brightness at the edges of an image, slide, or print. This effect can be caused by poor lens design, using a lens hood not matched to the lens, or attaching too many filters to the front of the lens.
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