Jump to content

Why banding when using LED lights with a6600 but not GH5?

rgames

By rgames,
in Sony Alpha APS-C and NEX Cameras

 Share

Recommended Posts

rgames Rookie

rgames

Posted
Posted

Hi - I got an a6600 a few months ago and have used it for outdoor shooting, both stills and video, and recently did some timelapse and video indoors under LED lights.  Both the stills and the video show dark bands across the image.  Searching for explanations led me to several discussions about LED light flicker and intermodulation and how it relates to shutter speed.  That makes sense.

What doesn't make sense is the fact that I cannot get the same banding to appear on my GH5 with the exact same frame rate (30 fps) and shutter speed (1/60 s).  In fact, I can't get the GH5 to show the banding at any shutter speed.  The banding persists on the a6600 down to 1/5 s which is, of course, not useful for 30 fps shooting.

Is there some setting in the a6600 that is causing the banding?  All the discussions I've seen go back to the lights being the issue but the GH5 clearly shows that LED flicker can be dealt with by the camera (I have no idea what the GH5 is doing to make it work, by the way).

Thanks,

rgames

Link to post
Share on other sites
  • 4 weeks later...
mirrorlessNY(youtuber) Enthusiast

mirrorlessNY(youtuber)

Posted
Posted
On 12/8/2020 at 6:07 PM, rgames said:

I have no idea what the GH5 is doing to make it work, by the way

GH5 has smaller sensor, hence better performance in certain areas. I have same led banding issues even with A7III & A7SIII, but hear A9 series has a much better control over banding due to higher sensor readout.

Link to post
Share on other sites
  • 3 weeks later...
ackdoh Newbie

ackdoh

Posted
Posted

I noticed the same thing for some of my videos under LED lights, found this article about how it related to electronic shutter and using mechanical instead, solved it. Hope it helps you too! https://www.sony.com/electronics/support/articles/00122281

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Posts

    • Pieter
      Blurry images on Sony 70-350

      By Pieter · Posted

      I've been using this lens extensively without any sharpness issues. At long focal lengths, you'll have to factor in the need for a faster shutter speed (< 1/500-ish at 350mm) and other factors like atmospheric distortion, fog/dust haze, etc. All these factors contribute to a deterioration of image quality at longer focal lengths.
    • Cameratose
      Blurry images on Sony 70-350

      By Cameratose · Posted

      That's supposed to be a pretty good APS-C lens. Can you try it on a different camera just for the heck of it? Friend? Camera shop? The lens is noted for sharpness, so if you're having as much trouble as you say, you may want to look into a replacement or repair. 
    • broz_tito
      Blurry images on Sony 70-350

      By broz_tito · Posted

      Hi everyone, I’m reaching out to the community because I’m facing a persistent image quality issue with my Sony 70–350mm f/4.5–6.3 G OSS lens, and I’d like to know if this is normal behavior or if my copy is defective. Problem description: I’ve extensively compared the 70–350mm G OSS with my Sony 18–135mm f/3.5–5.6 OSS, using a Sony A6700, under controlled conditions: • Identical lighting and background • Same subject and position (LEGO figure, consistent framing) • Tripod or steady support • Manual focus or AF with center point • Same shutter speed (e.g., 1/200s), similar ISO (ISO 4000–6400), RAW + JPEG • OIS turned on (and also tested with OIS off) My observations: • At 135mm, the 70–350mm G OSS delivers softer, flatter images than the 18–135mm, even when stopped down. • At 350mm, the sharpness drops significantly – the center is soft, and textures (like LEGO tiles or fabric) appear blurred or smudged. • Contrast and micro-detail are noticeably inferior across all focal lengths. • The 18–135mm at 135mm (even cropped) retains better edge sharpness and detail definition. • Both JPEG and RAW files confirm the issue – this is not just JPEG processing or noise reduction. Question to the community: • Have others experienced similar softness with the 70–350mm? • Is it possible I have a decentered or optically misaligned copy? • Is there a known issue with OSS introducing softness at long focal lengths? I wanted to love this lens due to the range and portability, but currently it’s unusable for anything where image quality matters. I’m considering returning or sending it for service. Thanks in advance for any feedback or comparison results you can share.  

  • Topics

×
×
  • Create New...