Focus — sharp from front to back
Move the focus between frames and Sharp takes every part of the result from the frame that has it sharpest. Macro, product work, a landscape with heather at your feet and a valley behind it.
Clean — less noise, and long-exposure water
Averaging frames takes the noise down by the square root of how many you shot: four halve it, sixteen quarter it. It is also a long exposure without a filter — water and cloud average into smoothness while everything that held still stays sharp.
Vanish — the people walk out of the picture
Stand still and shoot a dozen frames a few seconds apart. At each pixel Sharp keeps the frames that agree with each other and throws out the ones that do not, then averages what is left. Whoever was walking through was never in most of the frames, so they go — and because it averages rather than picking a middle frame, the noise goes with them.
Trails — every place the light went
A hundred short exposures of a night sky, a torch drawing, headlights on a bend. The brightest frame wins each pixel, so every mark the light made is kept and the sky stays as dark as one frame had it. Or keep the darkest frame instead, and take the passing lights out.
Pick — the sharpest frame of the burst
Twenty handheld frames, one caught between heartbeats. Sharp measures the detail in each and hands back the one that won, exactly as it came off the camera.
