horizontal panning smear/flicker

K

Keegs

Active member
I remember reading a setting on here that someone posted to reduces or enhances horizontal panning smear.

Does this sound familiar?

Thanks guys.
 
First rule of thumb would be to turn off the noise reduction functions! At least NR1. That causes significant ghosting and double-imaging on a fast pan.
 
Barry_Green said:
First rule of thumb would be to turn off the noise reduction functions! At least NR1. That causes significant ghosting and double-imaging on a fast pan.
Click to expand...

Yes Ive had the same thing. Pretty useful for a still camera though. The other thing which is probably more significant is the rule of thumb that applies to pans when your running a 24fps setting. Off the top of my head a full 90 degree pan should take 27 seconds? Have to check that. But thats the nature of 24fps. With that in mind Ive seen some big $$ movies lately where they do not heed this rule and they are getting some stutter in the shot.

If your talking about smear as in motion blur? a higher shutter speed, although the strobing may then be more noticable.
 
Speed of the pan depends on your focal length. If you're at full wide angle you can do that 90-degree pan in about 15 seconds, but if you're at full telephoto you'd need to take about 180 seconds(!) The quicker rule of thumb is that an object should take about 7 seconds to cross the screen.
 
That is of course unless you have something for the eye to follow, ie a walking person, a flying plane etc. Then you can pan as fast as you want as the eye will focus on the object in the frame and the background will pass by without notice. But I know Barry and Ncje already know this, I'm just adding it in there.
 
If you use the NR1 noise reduction, better keep it in LOW mode, above that gosting can accur says Canon. And fast panning in lowlight situations always is a problem.
 
Im getting mild ghosting on Nr1 low when there is lots of movement inthe frame. Didnt really pick it up on a wide pan though.
 
I seem to be getting a stutter of some sort when panning. low light and plenty of light. however, I have not captured it yet onto my NLE so im not sure if it is reading.
We will see. Hope this is not a sure fire downfall of the camera. I am 100% happy tho with the camera. It is AWESOME.

Thanks guys.
 
Keegs what your talking about - stutter is not only inherent in this camera when shooting 24fps BUT ANY CAMERA film or video shooting 24fps see Barrys time for pan info above, and additional avoidance strategies from Scharkey. Turn your cam onto 60i problem solved.
 
It's also recommended that you turn off OIS, so you don't get that strange movement when panning on a tripod.

(I know that doesn't directly answer the question, others have done that, just another cause of strange panning effects)
 
SIMES - yep, the OIS solved it. I have shot more 24fps on film than video, and thats why I wondered why it looked so weird since I had never seen that effect on film. BBut I figure the OIS was constantly trying to correct, shifting the image back and forth during a pan.

Thanks guys.

p.s. I love this camera.
 
It would be great to have the ability to turn off horizontal OIS in the camera and leave only vertical action just like in some pro SLR lenses, which is great for panning on tripod. Just wishing.
 
I've read conflicting things on NR1 and NR2, could someone with the camera straighten me out.

I've read NR1 is free from ghosting on the XL2 and NR2 isn't. And I've read Canon switched these controls on the H1/A1 to be just the opposite - NR1 = ghosting, NR2 = ghost free.

Then I've read not to use any NR settings with any camera movement or movement in frame because all NR settings cause ghost trails. Has anyone tested this out? Thanks.
 
nr1 "low" will dramatically reduce the amount of gain noise at the cost of some ghosting. to my eye, the ghosting is often imperceptible, even with moving objects, and it is a very usable camera setting. anything beyond nr1's "low" setting creates very obvious ghosting effects. nr2 creates no ghosting, but the effect is much subtler when dealing with noise from gain, and provides minimal benefits in this regard. hope that helps.
 
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Ghosting in NR1 Low is very mild and does not cause big problem in most situations, esp. with static or semi-static compositions. I agree with Henry. With higher settings ghosting is much more visible, but also may be considered a special effect. Noise reduction is not the only possible application of NR1. It may be used creatively.

When noise becomes an issue in low light, NR1 Low is definitely worth trying. Night scenery and low light landscapes are examples of situations when it works best. It's good to have this function. Quality of footage may benefit from that significantly when NR1 is used properly.
 
I am finding exactly the same thing, ghosting in some situations of low action has been imperceptible. Id still hate to run the risk of having it appear when Im shooting important footage so in that case nr2 if anything at all. Even so with the -3 gain and decent lighting, I got no appreciable grain anyway. And in circumstance where there is an exterior action scene in the areas of light drop off crushing the blacks a little takes care of that.
 
Its like using low shutter settings: you need to know what you are doing and when to use it. If used with some intelligence it brings you possibilities to improve the image. There are many situations you can use it wisely and therefore its a great thing to have. This cam gives you many settings.

It is not something you set to ON and forget it, if it was Barry, you bet it was incorporated into the basic signal amp.
 
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