topic Re: shadow in pic manual mode only in EOS DSLR & Mirrorless Cameras

shadow in pic manual mode only - EOS 90D

Dmcd3055 — Tue, 27 Feb 2024 22:27:00 GMT

So i apprecite the help I recd regarding my previous question regarding the 1x4 extender it was a great help. so heres the new challenge. Only in the M mode I am getting a shadow in the lower left corner. This happens only in the manual mode and not in any other mode. Any ideas??

camera is 90 D with zoom lens EF 100-400 L IS II

Re: shadow in pic manual mode only

Stephen — Tue, 27 Feb 2024 17:06:17 GMT

It's helpful to have a full idea of what's happening.

What camera are you using? What lens?

Can you provide a photo illustrating the issue?

Re: shadow in pic manual mode only

rs-eos — Tue, 27 Feb 2024 18:09:58 GMT

Vingnetting perhaps? Is the extender and lens all aligned well? Do you perhaps have a lens hood that isn't completely circular such that it's leading to vingnetting only in one corner? Or, is it really the case where vingnetting exists in all four corners and the images you're looking at make it difficult to see the effect in some corners?

Re: shadow in pic manual mode only

Dmcd3055 — Tue, 27 Feb 2024 22:06:27 GMT

happens even with the extender removed

Re: shadow in pic manual mode only

rs-eos — Tue, 27 Feb 2024 22:23:14 GMT

Do you have any other lenses you can try? Very odd that this only happens in Manual Mode. If say you switch to Av mode, take a shot (and make a note of all the settings that were used), switch to Manual and adjust to those same exact settings as used for the Av shot, this still happens?

Have you tried resetting the camera back to factory defaults?

Re: shadow in pic manual mode only

shadowsports — Tue, 27 Feb 2024 22:25:37 GMT

Greetings,

Can you test with another lens?

If you are seeing this effect with no hood or extender, it might be the shutter if it follows with any lens attached.

Re: shadow in pic manual mode only

Dmcd3055 — Tue, 27 Feb 2024 22:38:20 GMT

with all lenses

Re: shadow in pic manual mode only

rs-eos — Tue, 27 Feb 2024 22:53:14 GMT

Since all lenses, sounds like you need to contact Canon and see about having your camera repaired. Though do first try resetting the camera just in case that clears up the issue (doubtful though).

Re: shadow in pic manual mode only - EOS 90D

jrhoffman75 — Wed, 28 Feb 2024 00:08:58 GMT

Do you see it in the optical viewfinder? Do you see it in Live View?

Set the camera to P mode and record ISO, shutter speed and aperture. Then set the same settings in M mode.

Re: shadow in pic manual mode only - EOS 90D

Dmcd3055 — Wed, 28 Feb 2024 00:23:07 GMT

i do not see it in the view finder or the live view

Re: shadow in pic manual mode only - EOS 90D

jrhoffman75 — Wed, 28 Feb 2024 00:24:36 GMT

@Dmcd3055 wrote:
i do not see it in the view finder or the live view

But you get it in M mode and not P mode, even with the same camera settings?

Re: shadow in pic manual mode only - EOS 90D

Dmcd3055 — Wed, 28 Feb 2024 14:45:58 GMT

in the P mode 1/125 F4.0 ISO 160

same in the m mode and neither showed a shadow

what should that tell me?

Re: shadow in pic manual mode only - EOS 90D

jrhoffman75 — Wed, 28 Feb 2024 14:50:26 GMT

If it was just one shoot I wouldn't worry about it then (since you can't seem to reproduce it).

Re: shadow in pic manual mode only - EOS 90D

johnrmoyer — Wed, 28 Feb 2024 15:00:58 GMT

I do not have EOS 90D, so this is a guess. You might have "Auto Lighting Optimizer" enabled in the camera menus and "Auto Lighting Optimizer" might be disabled in manual mode. It might not be possible to disable "Auto Lighting Optimizer" in auto mode.

https://support.usa.canon.com/kb/index?page=content&id=ART175434

IMPORTANT

If [

: Auto Lighting Optimizer ] is set to any setting other than [Disable], the image may still look bright even if a decreased exposure compensation for a darker image is set.

From EOS 80D manual: