topic Re: Green/Red Focus Box Missing and Flicker/Flash on LCD in EOS DSLR & Mirrorless Cameras

Green/Red Focus Box Missing and Flicker/Flash on LCD

mut — Fri, 16 Jan 2015 07:48:41 GMT

Greetings:

1) I recently reset my T3i and can't figure out why the center focus box that turns green or red isn't performing as it used to. When I depress the shutter button for AF the box is there but doesn't turn green or red. It also used to stay on the LCD as green as I took the picture which isn't anylonger as well.

What happens now is it does its focus thing without turning colors and then snaps.

2) Also, all info on the screen disappears when I snap. All info meaning the grid I have up, the focus box and all other info ie. histogram and settings that are on the left side of the LCD. If I recall correctly, all info stayed on screen including the focus box green or red.

3) Lastly, the focus box will flash green when I snap the shot but that only happens "sometimes" and not always.

4) One other thing I noticed too is as I depress the shutter button or snap the shot I get a pink flicker on the LCD which wasn't happening before.

Any ideas how to fix these issues?

Thanks in advance.

Re: Green/Red Focus Box Missing and Flicker/Flash on LCD

ezpop — Fri, 16 Jan 2015 11:37:26 GMT

Too many problems occurred at the same time, so the best you can do at this stage is to :

1. reset the camera to default setting and clear all camera settings and clear all custom function ( inside the menu, different tabs)

2. format the SD card or if you have, use another one, format it before use

3. test with another battery, fully charged or recharge the battery if you don't have another one

4. use another lens (may be not relevant but it won't hurt)

5. if it doesn't work, try re-instal or update the firmware on the camera

after each one of the above steps, test the camera

6. if problems persist, call Canon for advise/price quote

BTW, check if you have changed the AF from live mode to quick mode or did you have enabled mirror lock up etc.

Re: Green/Red Focus Box Missing and Flicker/Flash on LCD

ezpop — Fri, 16 Jan 2015 11:45:18 GMT

according to your description, you shoot mostly with liveview mode. please cycle the info button to see if there is difference.(regarding your #2 problem)

is auto focus normal in Standard Viewfinder Mode ( not live view mode) ??

Re: Green/Red Focus Box Missing and Flicker/Flash on LCD

mut — Fri, 16 Jan 2015 18:23:25 GMT

Thanks, I'll try doing those options. I did however, reset via the 2/3 methods which is when I believe this all started as well as change the battery which also is when it all started. I will it all again and see.

As far as a lens, I have but they aren't canons or compatible with electronics on board. They are full manual analogs if you will.

Regarding the card, it's been in the camera now for months upon months. I assume it can get corrupted somehow and I'll try but I don't believe it would be the card...but again, I'll give it a shot and try another one.

Updating the firmware is a bit of a pain for me/this camera because I am running a mac OSX 10.5.8 (PPC) and I don't think the sofware is compatible. I looked online and find it's all Intel based Macs. I have to load the card into a Canon camcorder I have in order for the card show up as a drive and for me to update the firmware (if I recall correctly that's how I had to do it).

If you know where I can find the software for the camera that runs on PPC 10.5.8 I would be grateful for a link.

Once I do all the steps (in some time) I will followup...

Thanks much.

Re: Green/Red Focus Box Missing and Flicker/Flash on LCD

mut — Fri, 16 Jan 2015 18:43:09 GMT

Thanks. I believe I've tried that too as well as switching live view options ie. live view 1, 2 and quick. If that isn't the right one you are referring to, please direct me to which setting you are meaning.

Also, I just took a look through the eye piece and have also noticed that the focus area spot meter (if I am calling it correctly that looks like...

. .

. . .

. .

isn't the same either. The dots blink when in focus BUT they are fine dots they are very very blurry now and relatively large soft spots vs. a sharp pin point as it used to be. They don't seem be focusing on multipoints nor do they change and blink as I move the camera with the shutter button partially depressed. Before, I believe all lights would light up as I moved around.

I'll give all potential solutions a try and see. Thanks.

Re: Green/Red Focus Box Missing and Flicker/Flash on LCD

TCampbell — Sat, 17 Jan 2015 02:30:53 GMT

If the focus points in the viewfinder are blurry then it means you need to adjust the diopter on the viewfinder.

On the upper-right corner of your viewfinder, there's a tiny little wheel. That wheel allows you to adjust focus for your eyes e.g. if you normally wear glasses, it can correct for diopter adjustment as long as it's in the -3 to +3 range (and the vast majority of people are). If you need corrects outside that range, Canon sells slide-on diopters that can go even stronger.

Anyway... to adjust it:

1) Point the camera at something with no contrast... such as a plain white wall... or a solid blue sky, etc.

2) Not required, but I actually think this is easier if you deliberately de-focus the lens -- just put it well out of focus and leave it.

3) Now look through the viewfinder at those focus points and adjust the tiny wheel in the corner until the focus points are as crisp as possible.

The viewfinder is now focused for YOUR eyes. That means when something appears to be sharply focused, it actually is sharply focused.

At this point you should be able to switch on the camera, look through the viewfinder, let it auto-focus on something... and it should look sharp.

Why:

As light enters the lens, there's a specific distance from the front of the lens to the focus plane. There's a special mark on the top of the camera and on your T3i it's left of the hot-shoe ... over by the support ring for the neck-strap on the left side. The mark looks like a line... with a circle in the middle of it. That mark indicates the position of the focal plane (the sensor). When the lens is focused... it's focused to THAT distance.

When the reflex mirror is in the "down" position, it bounces light up at a 90º angle into the pentaprism. But more specifically it's bouncing the image onto the "focus screen". If you remove the lens and look at the top of the camera you will notice a frosted piece of "glass". The distance from front of lens, to mirror, to that "focus screen" is EXACTLY the same as the distance from front of lens to the sensor (when the mirror swings clear.)

This means what you're REALLY doing is projecting the image onto that bit of frosted "glass". You can think of it as a mini "rear projection" movie screen.

Even if the image is tack-sharp on that screen... if your viewfinder diopter isn't adjusted for YOUR eyes then that image would still look a bit blurry. Once you finish adjusting the diopter you'll be able to trust it.

BTW, I noticed your post is about the "green/red" box which implies you may be relying on the live-view display. When you use live-view on your camera it uses a completely different focus system then when you look through the viewfinder. The focus system used when you look through the viewfinder is MUCH FASTER than the focus-system used in live-view mode. If you are having issues with focus speed and delays when trying to take photos... switch to using the viewfinder and it'll be much faster.

Re: Green/Red Focus Box Missing and Flicker/Flash on LCD

ezpop — Sat, 17 Jan 2015 02:53:43 GMT

very blurry focus points in the view finder may imply :

1. diopter not properly adjusted

2. defective focusing mechanism Did you drop your camera prior to these strange behaviors ?

other than that, your camera has multiple problems :

1. focus box won't turn green or red - i.e. focusing not working ?

2. according to your description "it does its focus thing without turning colors and then snaps" - lens in manual mode ??

3. info on the screen disappear

4. the focus box will flash green sometimes

5. pink flicker on the LCD

3 to 5 - it looks like a mainboard problem to me.

The 9 dots are the 9 focus points. You can press on the right button and then cycle thro the main dial to select one or all of them.

BTW, do you shoot mostly with Live view mode. How is the movie mode ? Can you prefocus before you shoot movie ?

Re: Green/Red Focus Box Missing and Flicker/Flash on LCD

mut — Sat, 17 Jan 2015 09:49:47 GMT

Diopter was adjusted, the image is clear, the focus point squares are clear, the little red led lights aren't. I actually did focus on a white wall and many other things to test it.

Overall, my eyes are fine the rest isn't :).

Re: using the viewfinder vs. the LCD...yes, the view finder is faster I understand/know and use it which is how I was able to detect the red led issue.

The images are fine, they come out clear/in focus. it's the AF box indicator, screen flicker and view finder red led's that are the problem. It seems to be a display issue that seems to involve a portion of the electronics of the cam.

Re: Green/Red Focus Box Missing and Flicker/Flash on LCD

mut — Sat, 17 Jan 2015 09:57:12 GMT

I don't rely on AF in movie mode. It's too noisy. I haven't tried it with a shot gun mic attached but I prefer not to use AF in movie mode. Aside from the noise it's too slow for on the fly focusing. i use a rig with a focus wheel/puller attached when using it for video.

Re: Green/Red Focus Box Missing and Flicker/Flash on LCD

TCampbell — Sat, 17 Jan 2015 14:58:03 GMT

@mut wrote:
I don't rely on AF in movie mode. It's too noisy. I haven't tried it with a shot gun mic attached but I prefer not to use AF in movie mode. Aside from the noise it's too slow for on the fly focusing. i use a rig with a focus wheel/puller attached when using it for video.

The STM lenses are almost completely silent as they focus (that was by design) so that the sound can't be picked up by the camera's internal mic as it records audio & video.

I don't shoot video, but I have a good friend who does. He uses a Rode VideoMic mounted in the hot-shoe (it's a shotgun type mic). It's mounted on a spring suspension system and it doesn't pick up camera sounds.

Re: Green/Red Focus Box Missing and Flicker/Flash on LCD

TCampbell — Sat, 17 Jan 2015 15:00:31 GMT

@mut wrote:
Diopter was adjusted, the image is clear, the focus point squares are clear, the little red led lights aren't. I actually did focus on a white wall and many other things to test it.

I'm a bit confused... when you say "littel red lights" are you referring to the black AF points that light up red when they're active or blink when they lock focus?

Re: Green/Red Focus Box Missing and Flicker/Flash on LCD

RobertTheFat — Sat, 17 Jan 2015 16:32:39 GMT

TCampbell wrote:

Last year I had occasion to photograph an event that was well covered by the media. The room wasn't laid out to accommodate commercial TV cameras, so the videographers were using still cameras. Most (all?) of them appeared to be using Rode mikes.

Re: Green/Red Focus Box Missing and Flicker/Flash on LCD

mut — Sat, 17 Jan 2015 17:00:11 GMT

Yes..that's what I am referring to. Those red lights don't seem to be operating as they used to also. If I recall correctly they were sharp/very clear red dots. They are now larger and soft. So soft they are barely visible.

This is in addition to the other display related issues on the LCD where the focus box that turns red/green doesn't stay on the screen once it focuses nor does it turn green or red when it's done focusing. When it's done focusing all overlays disappear/turn off. The only way I know if it is focused or not is by depressing the shutter button...it will or won't take the shot.

If I recall correctly all info stayed on the screen throughout except when the shutter activated and took the shot which a quick black flash would happen.

Re: Green/Red Focus Box Missing and Flicker/Flash on LCD

ezpop — Sat, 17 Jan 2015 17:09:33 GMT

Now if diapter is adjusted and solved some of the problems and images are clear and looks focusing right, I need you to check one more thing.

Check the focus screen - have you ever messed with it and is it now installed properly on the mount. This may be the cause of the blurry AF points(red led lights as you have described) Check the manual for details. There may be some Youtube tutorials about focus screen installation. It won't solve the AF box in LV problem though.

I still believe that screen flicker is an indication of electronic failure. (or nearing end of life cycle)

If anything cannot help to resolve the problems, you either have o live with it as it or send to canon service center to diagnose the cause. Now they take a flat rate for service/repair. I guess it costs around $200 plus shipping and more $$ if the parts cost more than the flat rate.

I used to have one but sold it 2 years ago. My older 40D still survived. Rebels seem to be less durable to me. (just to me, there are still surviving XT and XTi of course)

Re: Green/Red Focus Box Missing and Flicker/Flash on LCD

mut — Sat, 17 Jan 2015 19:14:40 GMT

I think it might be the focus screen too for the eye viewfinder issue.

Re: end of life...hope not but if it is I guess there isn't much that can be done.

I can live with the viewfinder issue as it's taking clear images still.

Re: repair...I'll spend that money on getting another one and just add to inventory for video needs.

I'll continue to look into getting the problems solved.

Thanks much.

Re: Green/Red Focus Box Missing and Flicker/Flash on LCD

ezpop — Mon, 19 Jan 2015 13:40:43 GMT

Then the final step is to update/re-install the firmware.

Hope that it will get back to normal.

Good luck.

Re: Green/Red Focus Box Missing and Flicker/Flash on LCD

mut — Mon, 19 Jan 2015 17:17:04 GMT

By chance would you know where to get the software to connect it to a PPC Mac running 10.5.8 (not Intel). I've scoured the net/Canon and cannot find it anywhere and my discs (if it's on one) are packed away deep and far and away...

The way I did it before was putting the card in the Canon handycam I have which is and shows on the mac as a drive. The T3i doesn't the only software that connects to it is Apples Image Capture which doesn't allow me to put anything on the card or see the cam.

Thanks in advance.

Re: Green/Red Focus Box Missing and Flicker/Flash on LCD

TCampbell — Mon, 19 Jan 2015 17:45:13 GMT

Canon has only recently started providing the original software available for download. Back when your camera would have been new, the original software came in the box (on CD) and the "updates" were available for download. The catch is that the installer can't apply the update unless the base version is already on the computer.

That means if you can find your original media, you could get the last update that ran on PPC here: http://www.usa.canon.com/cusa/consumer/products/cameras/slr_cameras/eos_rebel_t3i_18_55mm_is_ii_lens_kit#DriversAndSoftware

But I am not aware of a location to download the original software.

The software would provide you with the EOS Utility, Digital Photo Professional, and the Image Browser, but you can use any photo management and photo editing program on the images. EOS Utility would let you update the firmware, but it turns out you can update firmware without it (when you download new firmware, one of the options is to simply copy the firmware file to the camera SD and use the camera menu to ask it to apply the update.

The only thing I do not know how to do without EOS Utility is edit things like the "Owner Name", etc. (there's a menu in the utility that lets you specify those things and it writes it to the camera. I do not know of an in-camera way to edit that information.)

So you're not losing very much (just a little) without that software. The larger issue is that nobody makes software that runs on that computer anymore, so at some point you may have to get a newer computer.

Re: Green/Red Focus Box Missing and Flicker/Flash on LCD

mut — Mon, 19 Jan 2015 18:17:21 GMT

Thanks for the info...I'll have to dig out my discs I guess.

Re: a newer system...It's unfortunate that a less than 10 year old system that works like a charm was completely left behind. The only major issue I have is browsing the web as more sites switch. A newer system will not only cost a few $1,000 but will require spending on cross grades to get my PPC software on an intel which might not be offered and might require purchasing the software as a first time purchaser...all combined costing a very large sum.

Some systems (ie. video editing/production) are sometimes $10-$15-$20k+ with all the top end software/HD I/O's and display cards...huge huge loss.

Aside from that, I can't justify spending that amount of money to browse the web...I'd go PC net book connected to an ext monitor for that.

But thanks again!

Re: Green/Red Focus Box Missing and Flicker/Flash on LCD

ScottyP — Tue, 20 Jan 2015 10:39:55 GMT

The red focus reticle not lighting Actually sounds like exactly what happens when I accidentally flip The switch on the lens barrel from AF to MF, turning autofocus off. Did that this again this last weekend actually