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A
anthonyg56567065
Known Participant
May 22, 2020
Answered

Pourquoi que j'ai un problème d'artefacts sur cette photo là ? Merci

  • May 22, 2020
  • 2 replies
  • 908 views

bonjour Pourquoi que j'ai un problème d'artefacts sur cette photo là ? Merci 

 

 

This topic has been closed for replies.
Correct answer Ricky336

I've looked at the specs of your Nikon z6, it's fine. The reason for artefacts, is probably due to your high ISO of 10000 -according to your metadata of the photo. You have noise in the sky which is noticeable when zoomed in.

The shadow area needs to be lightened up a bit, as well the converging lines should be fixed to a degree. White balance also needs to be changed, and some noise reduction. I don't think it is worth resubmitting, but to give you an idea of what you can do here is an example:

 

 

2 replies

Ricky336
Community Expert
Ricky336Community ExpertCorrect answer
Community Expert
May 23, 2020

I've looked at the specs of your Nikon z6, it's fine. The reason for artefacts, is probably due to your high ISO of 10000 -according to your metadata of the photo. You have noise in the sky which is noticeable when zoomed in.

The shadow area needs to be lightened up a bit, as well the converging lines should be fixed to a degree. White balance also needs to be changed, and some noise reduction. I don't think it is worth resubmitting, but to give you an idea of what you can do here is an example:

 

 

Abambo
Community Expert
AbamboCommunity Expert
Community Expert
May 23, 2020

I see noise in the sky area and excessive processing with the walls. The excessive processing is probably due to a picture taken with a phone or a small sensor camera. That processing makes that the wall structure looks washed out if inspected at 100%.

ABAMBO | Hard- and Software Engineer | Photographer
A
anthonyg56567065Author
Known Participant
May 23, 2020

Bonjour est ce que le problème des murs peuvent être a cause du poste traiment de mon nikon z 6 ?

Abambo
Community Expert
AbamboCommunity Expert
Community Expert
May 24, 2020

Non, le Z6 devrait être parfait. Mais comme Ricky dit, ISO 10 000 est le problème. 

 

Mais plusieurs choses:

  • Ton image a été pris à 1/500s, mais pris par la main, tu peux facilement descendre à 1/100 voire même si tu est bon à 1/20. En conséquence tu peut baisser l'ISO en fonction. 
  • Shoot en RAW et fait le finissage à l'ordinateur.

La photo est perdue pour Adobe stock mais elle peut quand même encore servir pour ton plaisir privé.

ABAMBO | Hard- and Software Engineer | Photographer
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