Jump to content

- - - - -

A7s noise/artifacts issue

a7s noise issue artifacts

  • Please log in to reply
4 replies to this topic

#1 Choupinga



  • Members
  • Pip
  • 1 posts

Posted 02 August 2017 - 12:05 PM

Advertisement (Gone after free registration)
Hello there!
watch video:
I got the a7s for like 7 months now. And since day 1 I am struggling with noisy footage. After researching about different PP settings, exposures, grading. I still getting noise (also in daylight), even in my mid-tones. So some people advised me to go to the shop. So I went to the shop. And I told them about this problem.
He asked which ISO I do shoot. I said between 800 - 1600/3200. And he answered that I have to shoot at 3200 for best quality. (I already did a lot of shots with 3200, but I thought that I give it 1 more try). But still had noisy footage. So I did this simple test with scopes from premiere. And what I see in my scopes is that in my mid-tones and shadows I see dancing pixels.(watch 0:25)
You can see moving pixels in the black background, on the LED light controller (in the colored buttons, and the grey part) and also in the green parts of the mini cactus.
I use a7s + 55mm 1.8 Zeiss. (+ Sony SDXC card 128gb 94mb/s)
You guys are my last hope. 
I hope I have explained clear enough to understand for you guys.
If you want to see the full discussion check it at: https://www.reddit.c...grain_daylight/

#2 markfireblade


    Advanced Member

  • Members
  • PipPipPip
  • 64 posts

Posted 03 August 2017 - 06:57 AM

Surely as the ISO increases, so does noise?

#3 Username


    Advanced Member

  • Members
  • PipPipPip
  • 813 posts

Posted 03 August 2017 - 09:37 PM

Surely as the ISO increases, so does noise?

No that not how a a7S works. 

#4 VTC


    Advanced Member

  • Members
  • PipPipPip
  • 204 posts

Posted 03 August 2017 - 10:14 PM

Your Chocomel C0264 looks like it's covered in lint... GREEN lint of the fuzzy variety. Mucked with a bit of the image and it's clear to me something's in there.

Attached Images

  • GreenFuzz.jpg

#5 cws


    Advanced Member

  • Members
  • PipPipPip
  • 85 posts

Posted 03 August 2017 - 11:30 PM

I think you got your answer on Reddit.

Also tagged with one or more of these keywords: a7s, noise, issue, artifacts

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users


New Members Welcome!

Not yet registered? Really?

Registration is free and takes only a few minutes.

After the free registration you can discuss with members from all over the world, put questions and present your images.

We are looking forward to you!

Admin Andreas und Sony Alpha Forum Team

Register now! X