UK-based glamour photographer Markp created this short video tutorial on how he sharpens photos captured at high ISOs in Photoshop without adding more noise to the image. His technique involves creating a High Pass duplicate layer of the photo, desaturating it and reducing noise on it, sharpening that layer, and then blending it into the original photo with Photoshop’s “Linear Light” blend mode.
(via Mashup Mark via Reddit)

Started out doing photography at the age of 6 using an uncle's old 1940 kodak brownie box camera. At 15 years of age, I decided to buy my very own 1975 Praktica SLR camera. I now shoot with a Nikon D850. I do unpaid TFP and commercial paid work.