Hola Startel,

Pues la verdad es que todas esas ambigüedades me confunden, y me hacen no estar seguro de nada. Y acabo harto de tanto elucubrar, imaginar, suponer, sospechar, deducir, etc.

Por eso prefiero que alguien que tenga la HC90 o la GS400 me diga algo así: "He efectuado una grabación con mi videocámara en modo progresivo, y luego he analizado detenidamente dicha grabación y puedo corroborar que efectivamente graba en progresivo real, y he constatado con mis propios ojos que capta los frames completos con la correspondiente nitidez y resolución efectiva."

Compasivo,

Xepinho me dio esta dirección http://www.pana3ccduser.com/.
Me parece un foro muy bueno para estas cámara de 3CCD.

Respecto al progresivo y lo del progresivo simulado (frame mode) encontré esto:

What is this "frame mode" I hear so much about?
Several cameras, including the Panasonic AJ-EZ1 and AJ-D200/210/215 and the Canon XL1 and GL1, have a "frame movie mode" or "frame mode" switch that changes the way the CCD is read out into buffer memory from interlaced to progressive scanning. This gives a 30 fps "film look" frame-based image instead of the 60 fps field-based image we normally see on TV.

Each video frame shows up as an intact frame-based image in which both the even and odd fields have been captured at exactly the same time with no interlacing artifacts (of course, the data stream written to tape still interleaves the even and odd fields for proper interlaced TV display; it's just that both fields have been captured simultaneously instead of in even-odd alternation). When shown on TV, frame mode images have had their temporal resolution reduced by half to 30 fps, fairly close to film's 24 fps. For the 625/50 XL1s sold in PAL countries, the 25fps video frame rate will make for an even closer match.

This is useful for those looking for a more "film-like" motion rendering while staying in video. Independent documentry filmmaker Sam Burbank shoots most of his stuff for National Geographic in Frame Movie Mode on his Canon XL1, and reports that DigiBeta shooters see his stuff in editing and say, "there you go, making us look bad by shooting film"!

These cameras get their "proscan" images not by truly perfoming progressive readout on the chips, but rather by offsetting the green CCD's read timing by one scanline during readout -- vertical pixel-shift, if you will. In essence, an even field from R & B CCDs is blended with an odd field from the G CCD, giving you a frame that has the scanlines for both fields captured at the same instant in time. This gives a definite improvement over mere field-doubled "frames", but it's not as sharp vertically as true proscan. Each "scanline" is actually composed of two scanlines from each chip, so there is some softening vertically; also, the effective chroma resolution is halved vertically. My Technical Difficulties article "Frames and Fields" goes into a lot more detail on the topic.

Current Sonys, alas, do not do nearly as well. They have a true proscan mode, but only at half the normal frame rate (15 fps NTSC, 12.5 fps PAL). Setting the Sonys into slow shutter speeds appears to work, but only on the half-resolution LCD viewscreens; the recorded image is line-doubled, and quite noticeable "jaggy" and inferior.

Of course, the Panasonic AG-DVX100 shoots both 30P and 24P (NTSC: 25P only in PAL) with a true progressive CCD, as does the Canon XL2 and the upcoming Panasonic AG-HVX200

Para más lectura: http://www.adamwilt.com/DV-FAQ-etc.html#filmlook

No se menciona la GS400 porque parece que no existía al momento del artículo pero la GS400 tiene el "frame mode".

Otro link interesante sobre el tema. http://www.camcorderinfo.com/content/More-Details-Revealed-Regarding-Panasonic-PV-GS400.htm

Saludos

Startel

Pero nos os preocupeis compasivo..., que cual sea la camara que compre le haré las prubas de grabacion en progresivo...

OK, josejones  :sinproblemas:

hola startel

queria preguntarte si tu pana gs400 tiene el problema del ruido en el compartimento de la cinta???.., tal como dicen en www.pana3ccduser.com (link que creo tu dejaste en algun hilo....mmmmm, ya no recuerdo bien)

saludos!!!

josejones,
Yo juraría haberte respondido ya. Me recuerdo lo que escribi, pero ahora veo que mi respuesta no está.
Resumido. Mi camara no tiene ese ruido. En ese mismo sitio, www.pana3ccduser.com tambien encontrarás que eso es un tema del pasado. En camaras fabricadas en 2004.
Hay tambien un post de Guy Brunner donde puedes descargar una grabacion wav del ruido normal y del ruido anormal.
Saludos
Startel