Sony 16-35mm f/2.8 GM: Single Frame Performance at f/9 vs Focus Stacking at f/9 (Bristlecone Log Low View)
See my Sony mirrorless wish list.
The about $2198 Sony 16-35mm f/2.8 GM offers the convenience of a zoom lens with good performance and relatively compact size and weight.
But how does one deal with outdoor scenes in which the depth of field of f/22 would be desirable, but f/22 is unavailable and both f/22 and f/16 would degrade the image unacceptably (by diffraction)? The answer is focus stacking
As this example makes obvious, depth of field even at 17mm at f/9 remains strictly limited. Using f/13 would help but also degrades the image by diffraction and still cannot deliver the required depth of field.
This comparison shows a 4-frame focus stacked image to a single frame taken at f/9, the frame delivering the sharpest rendering of the log.
Includes images up to full resolution, with crops.