Hey guys.

My camera seems to be having this problem of dark vignetting at the top left side. At first i thought it was the lens. but after swapping a few lenses, problems still happen. does anyone here knows what seems to be the problem. problems also worsen if pics are taken during very sunny days.

Thanks

photo using 1740mm ef L at f2.8



photo using prime 50mm ef f1.8



This post has been edited by aka_kepep: Mar 14 2016, 12:14 PM

It could be you're using a lens designed for a smaller sensor so the image circle doesn't illuminate a large enough area, leaving dark corners.

I assume your 11-16 is the tokina lens and it's made for cropped sensors

This post has been edited by nairud: Mar 14 2016, 11:21 AM

hi. thnks for the response.

anyway. i was using both EF lenses. my mistake. its actually 1740L hahaha not 11-16 . problem only occur recently.

1740L ef canon
50 ef

maybe dirty sensor perhaps try use dry blower and test again..

This one does not apply to his case because his has only 1 corner being dark.

Non FF lens on FF body at wide aperture, the vignetting is consistent and quite pleasant to look at.

Since you tried both lenses and the effect is the same, then it's not a lens issue.

Something inside the camera that's causing it, might be something at the corner of the sensor.

Best to bring it for check up.

will do and thanks.

anyway, weird thing is, the vignette never happen when i shoot indoors / not under bright sunlight.

Certain light angle and intensity can bring out certain flaws.

For example using a DX lens on FX body, in some scenes it looks very nice as the vignetting is pleasant while on other scenes it's just horrible dark corners.

Im going to guess it has something to do with the shutter or the mirror.

This post has been edited by DaddyO: Mar 15 2016, 07:53 AM

have you tried taking the same picture with and without lens hood?

the one with 1740 is with hood

the one with 50mm is without.

I think so too.. i just hope it wont cost a bomb to fix

You said indoor no problem, so i guessed cause of the lower shutter speed or the way the mirror stay up longer. Try go manual and test with different shutter speed and check if there is a difference.

This post has been edited by DaddyO: Mar 15 2016, 05:10 PM

looks like shutter / mirror box related.. like my 40D last time. but sometimes it can be adjusted by aligning the sync timing. send in to canon the techs will know what n how to help. btw if its really shutter or box prob that cant be adjusted, i wish you good luck coz this camera no more parts....

hi, im pretty sure this is shutter issue. but its weird that your canon hasnt show error code yet. one tough shutter refuse to give up


or u can flip your mirror and see if the retainer clip has given up?

This post has been edited by ieR: Mar 20 2016, 12:31 AM

so far during mirror lockup everything seems fine.. n yeah, no error code is popping up yet.. haha

This post has been edited by aka_kepep: Mar 20 2016, 02:19 PM