What causes the bubble like effect that seems to be in front of a Robin image?

[russellsnr]

Hi, i have read a previous posting from Feb 2022 and just want to ask if this what one poster called Nervous Bokeh? I use Sony A7R IV and 200-600 lens, dark wood high ISO.
Just in front of the Robins breast.

Thankyou, Russ.

 

[Uncle Kevriano]

Is that out of the camera or after processing?

 

[russellsnr]

Is that out of the camera or after processing?

This is out of Lightroom from DNG to Jpeg for web.

 

[Jeff A]

Looks like noise. What was the actual ISO number? Consider either DxO PureRAW 2 or Topaz de Noise AI. I have both but prefer DxO because it is a little faster. I saw one comparison by Mark Galer and the quality edge went to the DxO software as well. It did a better edge preserving detail.

 

[Uncle Kevriano]

Most likely a compression artefact or sharpening if you used it.

 

[russellsnr]

Looks like noise. What was the actual ISO number? Consider either DxO PureRAW 2 or Topaz de Noise AI. I have both but prefer DxO because it is a little faster. I saw one comparison by Mark Galer and the quality edge went to the DxO software as well. It did a better edge preserving detail.

Hi, ISO 12800, yes I no but in a wooded area covered by canopy at this time of year. I just tried putting it through On1 NoNoise AI and getting near the same result so yes looks like the denoising programs are extenuating the noise problem as artefacts , looked at the DXO offering but due to the price (and being an OAP ) waiting until the Friday/Monday silly days come round before committing my/our pension money. Also someone over on the On1 forum suggested blurring the background out. Thanks, Russ.

 

[Uncle Kevriano]

Hi, ISO 12800, yes I no but in a wooded area covered by canopy at this time of year. I just tried putting it through On1 NoNoise AI and getting near the same result so yes looks like the denoising programs are extenuating the noise problem as artefacts , looked at the DXO offering but due to the price (and being an OAP ) waiting until the Friday/Monday silly days come round before committing my/our pension money. Also someone over on the On1 forum suggested blurring the background out. Thanks, Russ.

Sometimes the denoise programs try y=to sharpen things that aren't there and this can create some weird artefacts.