Bokeh looks like someone doodled over it with the liquify function in photoshop. R5 with rf 100-500

[David-Epperly]

So I got a new r5 and an rf 100-500 in anticipation of going to Africa later this year. I am a professional photographer that normally used 5d mk4s for my day-to-day workflow.  

Long story short. Here is a picture I took this morning with the above r5 and rf 100-500 combo. Both have the latest firmware. 

The background looks like someone used a smudge tool or the liquify/push tool to push and pull the texture of the background around. I opened this photo in dpp4 and in the latest lightroom. Both programs show the same effect. 

I am attaching a small jpg that has only been slightly sharpened to show the effect, but the photo was taken as a cr3. image was taken at iso 800, 500mm, f9.0 1/1600 of a second. IBIS and lens stabilization are on. 

Obviously, this is not a great photo, but if it was it would be ruined by the effect taking place. has anyone else had this issue. I could upload the raw file if anyone knows a server that will host such a large file. I assume this site will not. 

Any ideas?  As of now I am a bit disappointed with the camera lens combo for being such a high-end rig,  I was selling my nature kit (nikon D810 and 150-600) to go all canon. I am unsure of that move now. There seem to be a few other issues with the camera that I'm not sure I can live with. 

Anyway, let me know if you have any ideas on what is causing this. 

Thanks

Dave

[kvbarkley]

Digital Lighting Optimiser, it is Canon's lens correction. You should be able to tun it on and off in DPP.

[Wojdarm]

I know this is a bit of an old thread but I have had a similar issue with this lens and combination.  Do you think there is a problem in the lens or is this just how it is?  Take a look at the branches and Bokeh in these two shots: 

[kvbarkley]

How are you post processing?

[Wojdarm]

This is a grab from Davinci resolve.  No processing done.  Looking over the images it really appears to be only occurring with the 100-500 lens.  Thanks for looking. 

[kvbarkley]

In other words, have you tried DPP?

[Wojdarm]

I haven't but not sure exactly how that would fix it?  And you mean Canon's software right? Thanks.

[kvbarkley]

I don't know, as you see there were never any real resolution to this topic. But Canon should be the best at developing the RAW file.

[brianbaiamonte]

Did you ever figure this out? I am definitely having the same issue.

[Peter]

Take a look on Dpreview and the thread "Weird squiggles in bokeh with R5 & RF 100-500".

[March411]

It appears to be Nisen bokeh (double-line bokeh) which occurs with many lenses, mostly reported with telephotos across most manufacturers. Google it and you can find more information.

It is believed two of the root causes are a result of correction in the spherical aberration as well as environmental components (busy background/foreground with small, bright highlights as well as high contrast). You may also want to Google Resolving Nisen bokeh for some tips and environments that result in Nisen bokeh. I recently had a similar experience photographing in the jungle with high bright skies and wooded backgrounds.