Frage von DonAlfredo:
Hello dear forum
I've recently been with my XH-A1 HDV shots (Progessive) the problem that appear multiple times in addition to the normal blur fast-moving objects through the picture. I have added a picture to illustrate. Has someone already had something synonymous, and possibly know a solution?
The recording was on the Picture with ND 1 / 6, made shutter 1 / 250.
I have the camera only recently, but the first recordings did not have this effect. Could it be the tape? Already 3-4 times overwritten.
Thanks for reading
Antwort von Valentino:
Thus it is very likely s.dem Canon's 25f mode available, which does not correspond to HDV and the standard 25 frames synonymous add up only interlaced.
The image converter itself can not read frames, which may in the price class, only the Sony, JVC and Panasonic cameras.
The problem should occur with 50i (fields) with a good deinterlacer not.
My recommendation s.dich, turn so fast things better with 50 fields and count them together later to 50 frames, so that the movement will see later, fluid from synonymous.
In addition, you should not choose the shutter speed is less than 1 / 100 and s.besten always remain at 1 / 50 seconds. Thus, there is not synonymous then this ugly tremor / Ruckel Effect.
If it is too light rather put the gain at-3db and make the ND filter and clean it with the same aperture.
With the tape, but the problem has definitely nothing to do.
Ps: Google views relating to motion blur :-)
Antwort von tommyb:
It could be the tape, however, are the "artifacts" in this case is not typical (although angular, but in such cases they should be synonymous beautiful bunt).
The video will play correctly on the display of the camera? Possibly. is here with a faulty decoder for MPEG2 / HDV.
More info on the editing software and to the program from which this screenshot is, would certainly help.
Otherwise, try just once the VLC player.
Antwort von Valentino:
No, the tape, it is not, I had already looked a lot HDV tape error all very different from the ghosts here.
Just because ghost images used in analog video formats should not happen this mean that it is synonymous with digital formats such as HDV.
The picture itself has shown no evidence of loss of digital image / artifacts, but only shows how an object with a quick swing of the signal electronics is doubled.
The Canon reads out in quick succession, two fields, which can then be generated into a full screen. This leads to the short shutter speed and the quick turn to these offset from the first field on the second half frame.
Would he would turn the same attitude with 1 / 25 shutter speed to blur the background and the way it would become a line.
The length of the stroke is on the same swing speed, just as long as the two towers at the ghost in the short shutter speed (1 / 125) of each other away.
Antwort von Schoko:
Ghosting synonymous generates the noise-reduction filters in the XHA1.
Look at 'times, whether you have activated possibly a preset that uses the NR1/2-Filters.
Antwort von DonAlfredo:
And the Winner is ....
"Chocolate" :-)
I have just made with my brother a few tests with different settings (ND, shutter, Fields / Progr. Etc)
The effect appeared forever. Then I switched to some other preset and the effect was completely gone. Phew, relief!
Nevertheless, thanks for all the expert answers, class forum.
There is interest in the settings of the presets to see?
Gruß Stefan
