M50 not recognizing horizontal lines for AF'ing

Just noticed my M50 has stopped recognizing horizontal lines for auto focus, if i turn the camera to portrait orientation it does the opposite, it doesnt focus on vertical lines, tested this with a couple of lenses it seems its the camera.
anyone else with an M50 test this, i think i woulds have noticed it before if it was doing it, had the camera about 10 months
any suggestions?
i've never updated the software / firmware to which i probably should but on the other hand it rules out a bad update

 

Hmmm, I'm not sure that I understand. Are you saying that you can get your M50 to focus on everything except a line which runs perfectly horizontally across your framed shot for example the edge of a table? How thick is the line which you're trying to focus onto? Can you upload an image to show what you are talking about?

Is your sensor clean? Is the optical pathway of your lens clear, no dust or fungus etc?

Cheers G.

 

Things that spring to mind is that have you cleaned the contacts on the camera? Have you accidentally changed a setting in the menu that has effected the af? So I am thinking of doing a factory reset. If this doesn't work, maybe it is time to update the firmware.

The camera shouldn't stop doing something for no good reason.

Let us know how you get on.

Gary

 

if the focus box is on a subject that only has horizontal lines it fails to auto focus on it, this is across all modes on the dial ie M Tv etc.
it seems its just not recognizing horizontal lines from the point of view of the camera, left to right.
if i turn the camera 90 degrees into portrait it focuses on those same lines perfectly but will not focus on vertical lines, which will still be left to right from the cameras point of view.
this is for lines between draws on a white cabinet, wood grain, or a shelf so its not just a single line.
when the camera is in normal orientation and i get a fail to focus on a horizontal line i can rotate the camera to 45 degrees then it starts to focus .
this is for all focus types, face, box servo multi point, if there are horizontal and vertical lines or any other shape it focuses but if i have it in multi point it fails to show multiple green boxes around horizontal lines also and boxes around other objects.

thinking back this may have started a month or so ago as i remember the camera failing to focus on some birds in flight, this would verify a test on some bat pictures i have on the wall as silhouettes form, similar to a bird with its wings out coming towards / away from camera presenting as a horizontal line.

it can be a lighting issue as the rotation to vertical wouldn't work on the same object.
i'm thinking it must be a processor problem?

i have emailed canon technical help, wither thats the right place i'm not sure yet have to see.
i'm in the UK if anyone knows of any other help.

its not yet a crippling fault i can still use the camera for 99% of auto focus stuff, everything else seems fine but its a fault on a camera less that a year old.

i got the camera around jan this year and i'm looking forward to this months jupiter/saturn conjunction so not really wanting to let it go in for repair this month but if i have to i might have to get another M50 while its being repaired.

 

i couldn't figure out in a hurry how to have the focus point show up in photoshop so i took a picture of them on my computer screen as it shows what it needs to.
this is with camera in normal orientation

and in portrait orientation

 

again in landscape, note that in this image the camera is happy to af on the vertical lines

turned around to portrait it fails to pick up any of the horizontal lines as seen from the cameras point of view

 

i've been through the menus toggling every setting but nothing changed but with the issue just being horizontals my thoughts are pointing to the processor but i don't know,
i will look at doing a firmware update as its probably something that will be asked by canon anyway.

 

Then I have no idea lol

 

firmware updated no differance

 

Have you tried a factory reset?

Gary

 

not yet, probably have to, can't see how thats going to help what looks like an non setting problem.
waiting to hear from canon now

 

will be sending the camera back to canon for repair, now i need to find another body, unfortunately they are holding high price still so it look like my best bet so far is £460 for a body, on the + side my gf has also been using mine for vlogging from home for her youtube book writing stuff so we will end up with two after mine is hopefully repaired.
i'm doing a daily photo of a avocado growing in a jar of water so i need to have a camera continuously.

 

Never the words anyone wants to hear. It would be interesting to know what the problem is.

It's always nice to have more than one camera body. Have you thought about one of the R series cameras?

Gary

 

I have elected not to do a factory reset on the camera, if i do and it clears the issue then it will be out of warranty if it goes again n a months time, also they will be able to see the problem at their workshop.

problem getting an R is i will then want to be shooting in raw so i will need to upgrade my computer and start running into more expensive glass etc.

while i'm in london and only doing photography as a hobby and not paid work i'm happy with the crop and body size of the M50.
Also i'll be giving one of the M50's to gf for her stuff, i'll still be running one M50, or two if i get into video.
i'll probably get a decent telescope before i get one of the R cameras, i have been resurrecting my old childhood telescope, it was just about good enough to see the rings on saturn so i'll take that out next couple days so Ruth can see the rings as she never seen them before.

i did get a slightly better reflector scope for xmas a few years ago i've not tried, its still in the very amateur / toy class so i'm not expecting great things, i have been making a couple of brackets to which i mounted quick plats to i can put them on my tripod, i'll do a test see whats what, i have a t mount so i might be able to get a half arse image as well.

 

I got to admit I am interested in how this pans out.

Gary

 

Ok we may have a thing!!
Like new camera has arrived from mpb to which it certainly does look new etc but it does the same thing.
i would like anyone who has an M50 or simalarly build camera processing etc to test this.

focus on something that only has horizontal lines in the focus box, ie a gap in a chest of draws,
as i'm about to send the original camera back in a day or so i would like you to ask anyone not on here to try the same

 

Quick update i have been asking on face book and some youtube channels but so far only one person has returned a test, he has an M50 and eos R and both do the same think he says its probably a weakness in the dual pixel system.
so can anyone who has a dual pixel test this also,

 

spoke to canon tech and they said it is a limitation,
would be really helpful if anyone else can do the test too, as its a duel pixel system issue the R range may well do the same.

 

on the + side my girlfriend now has an early xmas present as i have two M50's, i was planning on getting her one but was waiting to pick up more of a bargain on ebay, she has been using mine for youtube vlogs as she is a keen writer/ reader, you know, one of those book things with words and stuff.

long shot of this is i won't be sending the camera in as its a not fixable issue, just a limitation the way dual pixels are laid out
also to fully confirm this canon has been developing a quad sensor
https://www.canonrumors.com/patent-...CGT3CdNjG5FhrGI7TQTG41vk4aJm7pvXhSYfR9AS0MlJw

 

supprised there have been no comments on the final findings of the cause.