Hello this is my first ever pro cam. I've had a very rough start with this camera. It was in for repairs for the entire month of november already. I purchased it September 1, 2011. Now recently when filming I've noticed certain patterns appear. This is visible in good light scenes as well but minor in compared to darker scenes.

Here is a test video: The pattern is also there on good light scenes as well but harder to see.

Pattern XF300 - YouTube (http://www.youtube.com/watch?v=-9YngVcU7aQ)

when i go through my footage from the last 3 trips it's only VERY visible from the last trip. it's more faint in the other trips.

does anyone know what causes this. I tried filming in auto, full manual, full auto etc and the problem persists. filmed in perfect conditions and windy conditions like the video.

I guess I'll have to send it in again for repairs.

I don't know but I"m at my breaking point with Canon. 2 out of the 5 months with no use and lost money and a terrible experience with my first ever pro cam from day 1.

1. Had issues with stuck pixels and sent it for repair
2. Had issues with back focus and sent it to be fixed.
3. Had issue with burnt in view finder.
4. Now this issue with weird patterns.
5. Lots of night footage lost from Vegas and not to mention all the footage lost from the last few trips. (but the good light footage doable.)
6. All 3 hours of fiming last trip is lost.

Thanks

If you mean the patterning in the sky, that sure looks like an encoding issue when you rendered the clips out from your editing software.
Have you tried playing back the clip from in-camera to an HDTV via the HDMI link? I'd be very surprised if those artifacts would be visible then...

I have played most of the clips from december in native format on my 46inch HDTV and the problem is amplified even more as it's not converted to youtube. I have VLC player, Canon utility.

Clips played before dec 2 (before that it was in for repairs) do not have this issue.

Edit: Just played a bunch of clips via HDMI on my t.v and the patterns are all visible.

Check your product Identifier number.

G

As in serial number.

Do I need to post that here or should I.

Check the numbers tally with original your paid invoice. First thing I'd look for. And no, none of us need to see it.

I've got 2 XM2s, great lil cameras - STILL! - and both have been to the Canon hospital on 3 refits. Each time I make a clear note of each serial number.

G

Hmm, must be going blind.................

I've watched that video maybe a dozen times and the only thing I can see is possible contamination of either the sensor or a lens element with some kind of crud - pattern, nope.

Anyone want to get a bit more specific about this "pattern"?


CS

It looks like a small amount of posterization, this could be caused through compression. Generally this will show up in large areas with similar tones.

Happy New Year to all.

Thanks for all the responses and hope everyone has had a good new year.

I can upload more videos tomorrow if anyone likes or i can post a link to download a sample of native footage.

I was shooting with BBC CP if that helps. I also use a B+W MRC UV filter which is left on always when outdoors. Not sure if that is a problem or not.

When really looking close at my footage i really notice this "many lines pattern" in the grassy areas and darker scenes or when even in excellent light when panning if one area is darker like a grassy hill and the top half of the scene is blue sky then it really shows up.

For me i can see the potential of this camera and it suits my needs especially the 18x lens but I haven't had a lot of time to make my own mistakes and learn from them when other issues keep arising.

Thanks.

What level of coring, gain and denoiser did you used?

Try set denoiser to 0 (no denoiser), gain -3 or -6dB and coring set to +3.

Thanks for all the responses and hope everyone has had a good new year.

I can upload more videos tomorrow if anyone likes or i can post a link to download a sample of native footage.

I was shooting with BBC CP if that helps. I also use a B+W MRC UV filter which is left on always when outdoors. Not sure if that is a problem or not.

When really looking close at my footage i really notice this "many lines pattern" in the grassy areas and darker scenes or when even in excellent light when panning if one area is darker like a grassy hill and the top half of the scene is blue sky then it really shows up.

For me i can see the potential of this camera and it suits my needs especially the 18x lens but I haven't had a lot of time to make my own mistakes and learn from them when other issues keep arising.

Thanks.

Glad you've brought this topic up. My XF300 shows a horizontal line pattern as well (more visible in the shadow area – see attached screenshot). Don't want to pull away from your thread, but I'd like to refer to my previous thread about this issue.

http://www.dvinfo.net/forum/canon-xf-series-hd-camcorders/482602-xf300-sensor-pattern-visible.html

Now I'm really starting to wonder whether I'm going blind..................

If there's a horizontal pattern in that last screen shot that isn't because it's only a 1080, I'm stuffed if I can see it.

Come on, folks, is this real or are you just making it up to keep the forum going?

One thing I can assure you of - if the subject matter is of interest to the viewers and it's riveting, it wouldn't matter if it was shot on a good 'ol box brownie; so you lot navel gazing at this cameras supposed invisible deficiencies is somewhat, er, bizarre.


Er, Where's my white cane?


CS

Sorry for messing this up, maybe I should have called the pattern „vertical“, it seems as if every second line (out of 1920, from top to bottom) differs in luminance value.

I can see it and I've been partying for 2 days!

Happy New Year, Matt!
I have to admit the pattern is not that pronounced in the original frame and most often subtle in „real world shooting“. To point out the issue to Canon I've emphasized the effect on this very frame by setting up an AE composition.

Happy New Year!

Here is a gain test video i did. the pattern lines clearly appear in -6 and -3 and go away at 0

I film mainly outdoors in -6 and -3 so thats why i see it.

Gain Test XF300 - YouTube (http://www.youtube.com/watch?v=_J_kdf8r2A8)

Thanks for the mxf. The pattern is clearly visible but looks somewhat different from what my XF300 shows up. In my case it increases above 0db values. I'll check out the –3db & –6db settings tomorrow. I suppose altering coring and denoiser settings doesn't make any difference?

I have tried altering coring and spent some time messing around with other values and using ND and no ND's full auto manual etc, etc. and also reset the camera today. It shut down then rebooted and the issue is still there. I tried default cp and various other's like bbc's but can't make it go away. I'm planning to contact canon tomorrow.

EDIT: Some more testing and my issue disappears (in -6, -3) when i select 30p or 24p (192x1080) and when i select 60i the pattern appears again in -6 and -3.

Dear Martin,

Guten tag and thank you for your purchase of our Canon XF300 and sorry about the problems you are having. Our gold embossed third tier technicians have gone over your screen grab and would like to offer a few suggestions to get the most from your new camera.

Try and not have backlighting as your only source of illumination. Especially if you are going to pursue a pottery selling career on Ebay, it may be highly beneficial to go over to the photon section of this excellent forum and read about this very thing.

We have found through extensive testing that having light (natural or artificial) illuminate your subject in somewhat the same direction as your camera lens would cure 90% of all problems. Not operating with too high a gain will take care of the last 10%.

As you can see from your screen grab, what little outside light reflecting off of the table washes out the bottom half of the vase and yet no pattern in the dark part of the vase. The one thing we did well nobody mentions, of course.

We at Canon are constantly striving to defeat the physics of light, poor composition and even worse subject manner. To those ends we admit we have failed miserably in implementing those features in designing this camera. If you are really unsatisfied we would understand if you traded this in for say a Sony or Panasonic product and continued to pursue this line of camera critique with them.

What we did implement to contend with this type of footage is made it very easy to access the media section of your camera, highlight this footage and hit delete. No need to send it to us or post it online, most people have enough bad footage of their own. If you need more examples, such as a rack focus slider move on a candle that nobody would ever use that looks like crap, we have that too.

As a side note, to spice up ones mundane wide airport shots we highly recommend to include a crashing plane in the footage. A huge ball of fire upon impact is another great way to avert attention away from noisy background footage. Or Bigfoot, Bigfoot is always good.

Danke, Happy New Year and look forward to coming out with the camera everybody really wants in 2012.

The Canon Team (Not really, but I hope you get the point)

Omg - roflol!!!

Oh Canon Team, you're such a spoil sport, taking all the fun out of spending countless hours pixel peeping test footage in poorly concocted scenes.

However will I while away my evenings now?

As you can see from your screen grab, what little outside light reflecting off of the table washes out the bottom half of the vase and yet no pattern in the dark part of the vase. The one thing we did well nobody mentions, of course.


Yes, I should have mentioned that! Thanks David CanonTeam for not taking it too serious. Now I'm really looking forward to 201X ...

I have tried altering coring and spent some time messing around with other values and using ND and no ND's full auto manual etc, etc. and also reset the camera today. It shut down then rebooted and the issue is still there. I tried default cp and various other's like bbc's but can't make it go away. I'm planning to contact canon tomorrow.

EDIT: Some more testing and my issue disappears (in -6, -3) when i select 30p or 24p (192x1080) and when i select 60i the pattern appears again in -6 and -3.

Regarding my „pattern phenomenon“ it seems to be a different issue then. I've just tried both 1080/50i and 25p at -3 & -6db and couldn't reproduce your pattern looks. Maybe Canon has an answer...
Good luck and please keep us informed!

Hello everyone. I am writing from Japan.
I am using the XF305, but the noise pattern is seen in the same way as Mr. steimann. I can be found in the PC monitor 27-inch and 46inch HDTV.
CANON replaced the main board and CMOS,but it does not have improved.
the pattern noise,occur at around video level 10%?