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As others have said, digital sensors capture exposure values with a hard maximum value. When you reach that value, there is no nuance to a pixel at the maximum value. It's as bright as it can get. That's what "blown" means. There is no recovering blown out highlights. The whole blown out region reads the maximum brightness value. There is no data to recover. ...


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I have a Soligor Bellows and slide/film copy attachment with T-mount. Camera was Canon EOS Rebel T6 I found my f4.5 75mm Perfex enlarging lens worked best. I could not set up a El-Nikkor f4.0 50mm to get better than an cropped image of about 80%. I think an enlarging lens is a natural choice but am still experimenting. My light source was a very bright 1 LED ...


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