EOS RP focus peaking appearing in actual photograph

[cbp24601]

Strange phenomenon. I was using a 50mm lens on autofocus and noticed red lines around subjects in the photo. See the graduation cap and the trees. I've never seen this before. I DID have focus peaking on but turned it off later. However, why would the lines appear in the photograph itself? Canon RP, ISO 400, f/2.5, 1/640

[p4pictures]

This is not focus peaking, it looks to be chromatic aberration from the lens. Typically more noticeable at the edges of the frame and where there are strong contrasting lines between darker and lighter sections of the image.

The important question here is what lens were you using? Secondly what kind of file did you capture, and if it's a RAW what did you process this with?

Tools in Canon DPP do help reduce the existence of such "purple fringes" for most Canon lenses if you have the RAW.

[cbp24601]

Brian, thank you for that info. I've never seen this! Sorry -- I meant to include that I used a Canon - RF50mm F1.8 STM Standard Prime Lens, and I did shoot in RAW. I processed this in Photoshop Elements. 

[p4pictures · Accepted solution]

You may need to look at the lens corrections that Photoshop Elements uses, and maybe apply some more chromatic aberration correction. Though to give you an idea of how it might look, get DPP and see what it does as often it’s really good 

[cbp24601]

will do thank you!