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Posted by Spex on 11/09/07 09:11
>>
>>> What is a recommendable "entry-level " HDV camcorder that offers a
>>> true progressive picture?
>>
>> I think the crowd here prefers the Canon HV20
> That is *very* evident.
> However, in spite of all my attempts, I fail to understand what the
> "progressive" feature of the HV20 really is.
> I have the feeling that Canon in some (albeit cunning) way construct the
> progressive images by processing interlaced images in some way.
> Is there any documentation available on this?
>
The HV20 uses a CMOS chip and can therefore either be read interlaced or
progressive. It is one of the huge benefits of using CMOS that
individual pixels can be addressed.
My XH-A1 uses interlaced CCDs but is able to construct a progressive
frame by clocking one of the ccds (green) a field out of sync with the
others. There is a slight resolution drop when using the faux
progressive "F" mode. I understand there is no resolution drop between
progressive and interlaced mode on the HV20 which is expected.
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