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A DV(L)-FAQ [e]

DVL-Digest 606 - Postings:
Index


pd150 and gy-dv500 image quali - (2)
Slightly OT-CD copy - (2)


pd150 and gy-dv500 image quali - "Perry"


Stefan P. Glut posted:
>My leanings take me to the dv500 for a whole host of reasons, but is the
image on the pd150 "better" in any way? Does HAD technology on 1/3"
chips, or a new DSP in the pd150, out perform the 1/2" chips and DSP in
the JVC?<
My understanding is that the JVC uses Sony CCD chips which will probably be
HyperHAD. HAD is the type of semiconductor construction used, Hyper refers
to the use of micro-lenses for each pixel. Both features improve
sensitivity.
Ultimately you have to make your own choice. Although I don't own a DV500 I
have used one a lot and been delighted with the results. The only
reservation I have had with the camera have been centred on the 'Color
Matrix' which give what I think is a pretty gaudy picture. If you switch it
off, the picture is a little desaturated and unfortunately there is not an
independent 'saturation' control.
I'm currently testing a VX2000 which also looks good but ultimately a good
big one will always beat a good littl'un!
Perry Mitchell
Video Facilities
http://www.perrybits.co.uk/



pd150 and gy-dv500 image quali - "Perry"


Stefan P. Glut posted:
>My leanings take me to the dv500 for a whole host of reasons, but is the
image on the pd150 "better" in any way? Does HAD technology on 1/3"
chips, or a new DSP in the pd150, out perform the 1/2" chips and DSP in
the JVC?<
My understanding is that the JVC uses Sony CCD chips which will probably be
HyperHAD. HAD is the type of semiconductor construction used, Hyper refers
to the use of micro-lenses for each pixel. Both features improve
sensitivity.
Ultimately you have to make your own choice. Although I don't own a DV500 I
have used one a lot and been delighted with the results. The only
reservation I have had with the camera have been centred on the 'Color
Matrix' which give what I think is a pretty gaudy picture. If you switch it
off, the picture is a little desaturated and unfortunately there is not an
independent 'saturation' control.
I'm currently testing a VX2000 which also looks good but ultimately a good
big one will always beat a good littl'un!
Perry Mitchell
Video Facilities
http://www.perrybits.co.uk/



Slightly OT-CD copy - "Perry"


(Re: Slightly OT-CD copy re quality of CD dubs)
The other variable that other responders don't seemed to have mentioned is
timing. There is an argument that the phase jitter of the recorded bits
(that is inevitable with any form of mechanical device) will somehow effect
the final result. I have also seen it mentioned that recording at higher
speeds (x2, x4 etc) somehow gives a less good separation between 1s and 0s,
which may give higher error rates.
If you play the CD on an audio deck, I'm guessing that there is very little
if any 'resampling'. The bits just go straight into the DtoA system and any
errors will show up. If you import the CD data into a computer for use in
an NLE, then it's going to get resampled and the phase errors will be
irrelevant.
Perry Mitchell
Video Facilities
http://www.perrybits.co.uk/



Slightly OT-CD copy - "Perry"


(Re: Slightly OT-CD copy re quality of CD dubs)
The other variable that other responders don't seemed to have mentioned is
timing. There is an argument that the phase jitter of the recorded bits
(that is inevitable with any form of mechanical device) will somehow effect
the final result. I have also seen it mentioned that recording at higher
speeds (x2, x4 etc) somehow gives a less good separation between 1s and 0s,
which may give higher error rates.
If you play the CD on an audio deck, I'm guessing that there is very little
if any 'resampling'. The bits just go straight into the DtoA system and any
errors will show up. If you import the CD data into a computer for use in
an NLE, then it's going to get resampled and the phase errors will be
irrelevant.
Perry Mitchell
Video Facilities
http://www.perrybits.co.uk/




(diese posts stammen von der DV-L Mailingliste - THX to Adam Wilt and Perry Mitchell :-)


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