25P versus 50i deinterlaced test (PAL)

Pesie

Pesie

Well-known member
Hi everybody,

I did a small test with my DVX100 (PAL) shooting some 25P and 50i footage. With the help of a couple of people we converted the 50i footage to 25P with various software tools, including DV-Filmmaker. On the link down below you'll find:
- a motorway screenshot that compares 25P DVX100 with 50i>25P via DV-Filmmaker
- a passing train screenshot that compares 25P DVX100 with a lot of different conversion tools/methodes
- MPEG2 clips of 25P and 50i>25P converted material using DV-Filmmaker.

So far we can see DV-Filmmaker and Virtual Dub do the best deinterlacing jobs. But the best and most simple way to get filmlike motion etc. you just have to use a DVX100.

It's not a scientific proven test, but it gives a nice quick impression.

Check out the testresults at www.orphicfilm.nl/html/25p.html (sorry, Dutch language)
 
I think there is such a quality difference between original DVX25P footage and any deinterlaced footage, that the two are not even comaprable...to beign with.
 
That's right. But the test was triggered by some people who claimed that 25P filmlike footage could easily be created using DV-Filmmaker or some other deinterlacing tool. I think the test proved that the DVX100 25P from the box is better.
 
DVX/25p (shot on THIN line detail) should be noticeably sharper than 50i footage processed in post.

When shooting progressive/thin you'll get around 500 lines of resolution. When shooting 50i, you'll get a maximum of around 400 lines, and then some of that res will be lost in the process of converting/blending frames to simulate 25p.
 
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