How to see diffraction in photos

Started 3 months ago | Discussions thread
OP Dann-Oh Contributing Member • Posts: 843
Re: How to see diffraction in photos

thinkinginimages wrote:

Dann-Oh wrote:

Hello all,

I am wondering if you guys could help me understand what diffraction is and how to spot it in my photos?

I was trying out my new flash and I was trying to get a black background, so I stopped down to f16.

Diffraction would be a slight softness everywhere, almost like a very light diffusion. Usually I use a lens test target and photograph it. MFT cameras tend to correct lens flaws. Here's an excellent write-up about lens testing:

https://www.lensrentals.com/blog/2014/02/setting-up-an-optical-testing-station/

As for the black background and flash that's a different topic: fill flash. The gist is that you don't want the flash to be the primary light. You don't say what flash. Is it TTL? I would get the flash off the camera so you have more lighting control.

Great images!

good catch, I am using the Godox/Flashpoint MF12 macro flash kit. These photos were taken with the Godox version but I was able to get the Flashpoint version for $80 less so the Godox is being returned.

The flashes (2 of them) were set to the 3 and 9 o'clock positions and they were set to manual power (maybe 1/32 or 1/64).  I have no idea how ttl works so Ive stayed away from it.

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I take photos, not particularly good photos, mostly abstract photos. Yeah abstract is what I would call them, you might call them blurry.

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