AJA KONA 3G, Инструкция по установке и эксплуатации

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KONA 3G Installation and Operation Manual — Understanding Typical
PhotoJPEG
Data rate: approximately 1-3 MB/second (megabyte per second) standard definition or
high definition—supported by internal system drive
Quality: Very Good
The PhotoJPEG codec offers an excellent compressed media choice for near on-line
quality at low data rates. PhotoJPEG can use the full-raster at 4:2:2 sampling. Final Cut Pro
allows you to adjust the quality using a slider. To be able to effectively encode to
PhotoJPEG when capturing HD, the quality slider should not be set past 35% for HD. The
quality slider can be set higher for SD formats. KONA 3G allows for PhotoJPEG monitoring
and/or output in both SD and HD. KONA 3G can capture from almost any HD or SD input,
directly to PhotoJPEG media.
DV (DV25)
Data rate: 3+ MB/second standard definition only—supported by internal system drive
Quality:
Good
DV is commonly input to an Apple computer via FireWire. KONA 3G can capture directly
to DV compressed media from an uncompressed SDI source. For devices that may not
have FireWire (IEEE1394 or i.Link) connections, this allows the user to capture to this low
data rate, yet good quality codec. While DV does offer good quality, it has lower chroma
resolution when compared to DV50, JPEG, or uncompressed. The KONA 3G can be used
to convert DV projects to uncompressed-in real time-for monitoring and/or output even
if you haven't captured the footage using the KONA 3G.
DV50
Data rate: 6+ MB/second standard definition only—supported by internal system drive
Quality: Very Good
Like DV25, Final Cut Pro also supports the Panasonic DV50 standard definition codec.
DV50 is a 4:2:2 compressed format and therefore has higher chroma resolution when
compared to DV25. Also like DV25, you can use KONA 3G to convert DV50 projects to
uncompressed—in real time—for monitoring and/or output. KONA 3G can capture from
its SDI input, directly to DV50 compression.