Image Stacking with Helicon Focus
Gallery: Macro Focus Rail

 
Macro Focus Rail

Lens "Stack" Macro

Other Stacks

20mm Aircraft Gun Riflings

Comparing the Samples
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In order to determine the distance increment between frames, I made several tests at different apertures and spacing and then evaluated the results in FastStone Image Viewer using the Compare function (Keystroke “P”). My sample looked best at f16 with a .030 in. frame interval. I then made the final exposures using the mirror lockup and a remote shutter release.