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Unusable images with Canon R5 and 100-500mm RF lens

Started 6 months ago | Discussions thread
drsnoopy Senior Member • Posts: 1,216
Re: Unusable images with Canon R5 and 100-500mm RF lens
1

Thanks for posting the full image, however I think the real culprit here is Topaz denoise used in auto mode.   It can introduce unsightly artefacts in isolated parts of an image, and is best used carefully, or with masking, or as a layer in Photoshop, with careful scrutiny of the results.  I do not agree with an earlier post suggesting “the R5 is a noisy beast” - my experience has been the opposite.  Also doing RAW conversion in Adobe ACR or LR without careful masking can also make things worse. If the noise in the original raw file is a problem, my personal suggestion is to try DXO Photolab with Deep Prime noise reduction, which is available as a free trial.  You may get a much better result.  The R5 with an EF 100-400 L ii should give great results capable of cropping to about 18MP without sacrificing much image quality even at high ISOs.  Mine certainly did (in poor UK light), though i have since traded it for the 100-500.

if you’re happy to share an unedited RAW file, try a Dropbox link.

 drsnoopy's gear list:drsnoopy's gear list
Canon EOS RP Canon EOS R5 Canon EOS R10 Canon EF 100mm F2.8L Macro IS USM Canon RF 35mm F1.8 IS STM Macro +10 more
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