Nature photographer Steve Perry has released a new 14-minute video educating his audience all about lens diffraction. Beginning with a somewhat technical explanation of how diffraction occurs with your lenses, the video quickly moves into giving practical answers and examples for questions that you may have wondered when it comes to choosing f-stops and how to get the sharpest possible image.
As Perry points out, diffraction is “actually a property of physics, not a defect in manufacturing.” As a photographer, it is simply something that you must learn to work with regardless of lens choice, and this video gives you all the information you’ll need to make smart decisions when shooting for top-quality images.
Here are some of the questions answered in this video:
- “Wait a minute, I thought when I stopped the lens down to a smaller f-stop that I would have more in focus. Is that not true?” (4:05)
- “OK, if I get more diffraction as I stop down, why is my lens sharper when I stop it down a notch or two from wide open?” (5:05)
- “So, does this mean I should never shoot small f-stops - just stick with the sweet spot or at least f/8 and faster?” (6:05)
- “I hear that higher resolution cameras show the effects of diffraction much sooner than lower resolution cameras. Does that mean that I shouldn’t upgrade to a higher resolution camera?” (7:05)
- “Can I just sharpen out diffraction?” (10:55)