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Canon HV20: echtes 25p oder Software-Deinterlace?

Canon HV20: 25p true or software Deinterlace?



Frage von newbeee:
August 2007

So far, I have no answer found:

Canon HV20 records true 1080 line picture frames, or will be made in half-interlace camera screwed together?

For example, recordings were combs can be seen, although the 25p mode, the speech was.



Antwort von Axel:

The camera can do both. The sample clips were likely to 1080i. The chip scans the images in the 25p mode as full as writes but two simultaneous half on tape, because the 1080p HDV 2 Specification does not provide.



Antwort von newbeee:

Wow, thanks for the quick reply!

Then I'll look for suitable 35mm adapters!








Antwort von robin1990:

where you can find because these sample clips?



Antwort von wolfgang:

"Axel" wrote:
The chip scans the images in the 25p mode as full as writes but two simultaneous half on tape


Axel, you're as safe? I thought before, that would be no real progressive fullscreen mode because the alerts from the CMOS interlaced happens - and then the picture will be added together.

Where does this info to?



Antwort von Marco:

Most current CMOS will be progressively selected (of 14 current Sony CMOS cameras do it eg 12 models). Canon camcorder that the signal is interlaced readout, a switch after deinterlacing and processing so that their "25F" call it, is more of a "relic" from CCD times.

That is why I am actually surprised that there are still so little current (CMOS) cameras offer 25p or 50p.

Marco



Antwort von wolfgang:

Yes but that is for me the very question: the term "25f", we had earlier for devices like the Pansonic NV-MX300/350 - why is not the name led 25p?

But probably primarily interested in what it really is - because someone has a known source entsprechnde what the HV20 really makes this?



Antwort von Marco:

Yes, the name was 25F, but is not used in the HV20. 25p again probably not, because it is due to the frames segmented recording is strictly speaking not a 100-percent "progressive" is. The Picture s.sich already, but not the recording method. So as Axel is already explained above.

Marco



Antwort von wolfgang:

Ok, understood - unfortunately this thing has an advantage and a disadvantage: clear, HDV2 compatible, clear the fields are created at the same time - but then interlaced flicker gibts ja wohl trotzdem.



Antwort von Axel:

Even in the Manual of the A1, a CCD camera, is to the point "25F" mode displayed a graphic that suggests so. The text even states that: ... is in the progressive mode and signals are used in 50 B / s (interlaced) were converted.
25F (camera) = A / B / C / D
25F (tape) = A / B / C / D
50i (Play) = aa / bb / cc / dd

It is true however, that here the designation "F" instead of "p" irritated.
It is equally true as newbee in Thread Start noticed that sample videos of HV 20 with the name "p" sometimes these Kammuster show. I suspect however, that only the name is wrong, because there are other, despite the diagonal edges of this motif does not have ridges.



Antwort von wolfgang:

Thank you once for the quotation - the Kammuster but actually it should not be given if the CMOS read out is really progressive.

I just hard, whether it be the flicker deinterlaced there - it really should not do so if the origin of a progressive picture really is. Only - if Kammuster but then suddenly there?



Antwort von Jan:

Hello,

but you must watch. In the XH A 1 is always of 25 F and in HV 20-25 P talk to beweissen Canon synonymous these documents. This one has me synonymous with various trainings Canon want to tell that only the simple HV 20, one progressive mode has improved. The CMOS progressive at the AGM is 20 out of 25 P (25 PF I think it is called in HV 20 Menu) is true. Otherwise halt interlaced.

VG
Jan









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