Canon R3 extreme banding in available light extreme iso ;extreme speed; stopped down aperture f22>

[Matjulu67]

Hello friends 

Pro wildlife  safari in Southern Africa .

Equipment:   2 R3s   &  R5 mk2

Lenses   Rf400mm 2.8  RF600mm  Rf70-200 2.8 Z

Experiencing shocking purple banding in available light  subjects animals burds all sorts.

dragonflies in flight extreme settings  to test for suspected problems with 1 R3 body..

Settings 

Speed 1/64000  ISO 102800

Aperture stopped right down south of F22

Why the test to expose / accentuate aggravate expose the problem!!!! ?

only one R3 does it

Both configured identical. 

Suspect Problem

[rs-eos]

I'm assuming you only maxed out the shutter speed and ISO to perform such comparison tests.  How do the cameras compare though using more appropriate values?

When you conducted the tests, were both R3s powered on at the same time (after being off for say at least an hour, perhaps longer).  Where I'm going with this is that perhaps one camera was internally hotter than the other which may account for the differences.

Also, when doing your experiment, did you use the same exact lens (swapped it between R3 bodies)? I don't expect that to cause the banding, but best to keep all variables the same if possible when conducting tests.

[Peter]

Har to know without any pictures. Share some raw files.

[Matjulu67]

Good evening Ricky from the Kruger NP South Africa.

Firstly thanks for devoting time to help before I send the troublesome ( older of the two) body in for inspection/repairs.

In direct answer to your first question both bodys  with the 400 and 600 were powered up simultaneously to yes, nullify perhaps that as you suggest  heat is affecting things and began firing away to full buffer.

Alas no matter what I did to provoke the newer of the  two (one vs two years ) it excelled band free throughout irrespective whether I swapped lenses.

I will respond now to Peter attaching screenshots from Raw if thats okay.

Thank you sincerely 

Stephen (Matjulu67)

[Matjulu67]

Good evening Peter from location Kruger NP. South Africa.

Thank you kindly for replying.

I will send screenshots of the problem a little later. Just now I am about to head out on a nocturnal safari

Sincerely Stephen   (matjulu67)

[Matjulu67]

 

Peter as requested please see raw screenshots .

On the bird shot note another trait common to all when. in firing off to buffer... the variation in banding intensity.

Thank you sincerely

 to close,  it made no odds no matter the cards i used..cross ref Rickys help please.

Stephen

 

[Matjulu67]

Hi Ricky

As I promised plesse see raw files 3 of many msny from the troublesome body..As i noted to Peter (Illuminary) note the variation in intensity of the bands whence firing off to buffer

 

 

 

 

[kvbarkley]

Those aren't raw files. At the least they are raw captures from an HDMI device.

[shadowsports]

@matjulu67,

Please use a file sharing service (Google Drive, OneDrive, etc) and provide us with a link so we can evaluate your images.  Also, please swap the media card(s) between camera's and see if the behavior follows.

Thanks 😀

[Matjulu67]

Gday Rick

Done all the obvious stuff like swapping out cards to both bodies. The probs only with one body the old one around a year ish old

Not going to link through google or any gile service you can see the prob clear as day.

Cheers