Canon 5D Mark III vertical noise/banding lines

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Tudor Ciobanu New Member • Posts: 7
Canon 5D Mark III vertical noise/banding lines

Hello there,

Lately I noticed some noise lines in my Canon 5D Mark III pictures. Below is a 100% crop and a 200% crop, having Unsharp Mask/Strength at its highest value in order to make it more visible.

ISO 100, same for all f values, lens Canon 100mm f 2.8 L. The camera has only 50000 shutter actuations.

They are easily removed with noise tool, DPP or Lightroom, but I wonder what is the cause.

Thank you very much for your time and answer!

Later edit, if I increase Threshold value the lines disappear. Remains my question, why this happens now. I have checked old pictures, same shooting conditions and they are clean, no banding lines.

100% crop

200% crop

Below is a 200% crop having Unsharp Mask/Strength at half.

200% crop

 Tudor Ciobanu's gear list:Tudor Ciobanu's gear list
Canon EOS 5D Canon EOS 5D Mark III Canon EF 24-70mm F2.8L II USM
Canon EOS 5D Mark III
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preferredfault Regular Member • Posts: 363
Re: Canon 5D Mark III vertical noise/banding lines

If you haven't already, set focusing to manual and see if the issue disappears, and try to use a different lens. The effect could be a result of interference from the autofocus electronics. If not, try at different ISO's and see if it still shows up. Also, make sure you have things turned off like exposure compensation.  Otherwise it's likely caused by some electrical issue within the camera itself.

Kameratrollet Regular Member • Posts: 474
Re: Canon 5D Mark III vertical noise/banding lines

Raw files, please.

OP Tudor Ciobanu New Member • Posts: 7
Re: Canon 5D Mark III vertical noise/banding lines

Unfortunately, none of the above works or change those lines.

Later edit: I just found that the pictures always had those vertical bandings. I looked again over the old pictures.

Now I'm wondering about Threshold value, maybe it is my mistake  'cause I always keep it at a low level.

Anyway, today I will do some more tests with another 5D Mark III to see if this repeats or not. For sure, on my Canon 5D Classic never have had this banding.

Thank you,

 Tudor Ciobanu's gear list:Tudor Ciobanu's gear list
Canon EOS 5D Canon EOS 5D Mark III Canon EF 24-70mm F2.8L II USM
OP Tudor Ciobanu New Member • Posts: 7
Re: Canon 5D Mark III vertical noise/banding lines

Sorry, but I don't know how to send/attach a .cr2 file, I need some help pls.

 Tudor Ciobanu's gear list:Tudor Ciobanu's gear list
Canon EOS 5D Canon EOS 5D Mark III Canon EF 24-70mm F2.8L II USM
OP Tudor Ciobanu New Member • Posts: 7
Re: Canon 5D Mark III vertical noise/banding lines

I noticed that these lines appears only in highlight area. I have few photos of the Milky Way and they are super ok.

I really don't understand...

 Tudor Ciobanu's gear list:Tudor Ciobanu's gear list
Canon EOS 5D Canon EOS 5D Mark III Canon EF 24-70mm F2.8L II USM
OP Tudor Ciobanu New Member • Posts: 7
Re: Canon 5D Mark III vertical noise/banding lines

The problem solved! Thank you for your replies.

I leave it here, hopefully it will help somebody else too. It was my mistake, of course, as follows:

1. I sharp the image to maximum having the Threshold at its minimum value - I should know that this is a no no for checking your sensor

2. I checked the image at 100% and 200% and the patterns looks like lines, at 400% the pattern looks totally different

3. I use only ISO100. For 5D Mark III, the pattern seams to change at different ISO values.

What makes me doubt my analyze technique was the fact that the images which were made with a long exposure had a different pattern and if was a sensor malfunction then in every image, over/normally/under expose, I should see the same vertical lines noise pattern and is not the case.

Once again, thank you very much for your replies.

Best regards,

 Tudor Ciobanu's gear list:Tudor Ciobanu's gear list
Canon EOS 5D Canon EOS 5D Mark III Canon EF 24-70mm F2.8L II USM
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