>"Neuman - Ruether" <d_ruether@hotmail.com>
wrote in message
>news:3e71732a.9813038@newsstand.cit.cornell.edu...
>> OK, I've expressed here my reservations about HDTV,
at
>> least as demonstrated at the local Sears and Best
Buy
>> stores, where rows of mediocre pictures can be seen
on
>> various HDTV models, with soft, "globby"
images and
>> poor text-sharpness passed off as an improvement
over
>> my sharp-looking old 27" and 20" TVs
(with one 50"
>> Pioneer plasma HDTV being about the only
exception),
>> and I've assumed that the lower-than-Mini-DV
data-rate
>> of broadcast HDTV had a lot to do with this, and
that if
>> SD Mini-DV shows "painful" artifacting,
that the much
>> greater data density (and resultant much higher
>> compression ratio) of HDTV would look worse. I've
>> also assumed that the SD-DV I've produced would
look
>> at least OK displayed in the middle of an HDTV
>> display...
>> Well, the "light" struck recently when a
friend invited
>> me over to see his new HDTV theater system. I
expected
>> his relatively-inexpensive LCD projector (a $2000
>> Panasonic 1/2-1080i resolution one) to show the
usual
>> "chain-link fence" pattern I had seen
before, or the
>> weak color, mushy definition, low d-max etc. that I
>> had also seen. We started with a DVD of Star Wars II,
>> which looked much better than I expected on the
8'x4.5'
>> grey-painted screen, viewed at about 9' - with
surprising
>> detail (though this looks good on my 27", even
off a
>> VHS tape...), good color, weak blacks (viewed in
the dark),
>> and very low level of compression-artifacting. Next
we
>> looked at a dish-received [HDTV] broadcast of a
"flight
>> over British Columbia". The detail was nothing
short of
>> AMAZING!!! To the corners of the close-viewed 8'
screen
>> (where, BTW, the 16x9 looked "right", and
I now withdraw
>> my "Bandaid-view" and
"slot-view" comments about 16:9...;-),
>> one could see not only distant trees on hillsides
>> crisply-rendered, but the branches! Rock-detail,
fences,
>> distant signs, etc. all looked crisp on this BIG
screen!
>> All was good but the blacks, so I asked if we could
>> adjust settings (which had been centered). Maxing
>> the contrast and minimizing the brightness on this
>> PT-L300U Panasonic projector (total cost of the
visual
>> parts of this system were about $2500 - with a
really
>> good [NOT standard-commercial!] sound-system
added...)
>> about satisfied me for image brilliance, and I
enjoyed
>> flying around BC...!;-) Notable was the COMPLETE
LACK
>> of visible compression and motion artifacting...
>> We next watched a small Mini-DV production I had
made,
>> using highest-quality 3-CCD
"handycam-style" camcorders.
>> I had hoped that in a future HDTV era that all my
work
>> in SD DV would look good enough centered on good
>> HDTV displays. It looked terrible, with annoying
>> artifacting galore! Color was excellent, but it did
>> not look sharp (except for the annoying
stair-stepping,
>> "scan-line flapping", etc. I was VERY
disappointed.
>> It may be that the conversion from 480 lines to 540
>> lines may have been a problem, and it may be that
with
>> line-doubling and interpolation that a useful
output can
>> be saved, but......, this was very disheartening. I
have
>> seen this material look good on large SD displays,
>> though, so maybe there is hope...;-)
>> Next we tried a bit of SD CNN. It looked soft, with
>> considerable variation in the sharpness of included
>> video clips (running from soft to mush), but there
was
>> little artifacting (even 340-lines max. looked
better
>> than the 500-lines or so of the best of the SD
DV...).
>> Finally, we watched a dish-received HDTV-broadcast
>> movie (Ocean's Eleven). By now, I was used to the
>> VERY-close-to-projected-35mm-look of HDTV, so it
was
>> not a surprise that I was more aware of the film
grain
>> in the original film than I was of the tiny DV
pixels
>> (generally evident only at the edges of diagonal
parts
>> of white text against black...).
>> Latter I saw an HDTV broadcast of a Spanish street
>> festival. Moving close to this big screen, the
detail
>> held surprisingly well - I could see stitching in
>> clothing, read the text on a microphone someone was
>> holding, look down and see (and be able to identify
>> some of) the litter in the gutter, etc. This was
>> SHARP!!! This was FAR BETTER than my Mini-DV
efforts.
>> This is GOOD (but now, what all that effort and
money
>> put into Mini-DV.....?).
>> Sigh...!
>> Well, I learned a few things....
>> David
Ruether
On Fri, 07 Mar 2003 18:18:50 GMT, "Jim Harvey"
<jharvey3@o3ptonline.net> wrote:
>Ir David R[ue]ther says he LIKED it, then chances are
normal mortals will
>faint at the experience. David, you're scarin' me! ( I
agree wholeheartedly
>with your assessment of Best Buy and Sears displays,
like I'm going to be
>convinced to part with 10 large for a TV that doesn't
look all that great,
>even with the "Special" programming that they
pump through it for the rubes.
Amazing how bad it looks...;-)
>Nice to see that you had an epiphany Dave.
>
>Jim Harvey
>JHV Digital
Happins e'ry once inna whyle...;-)
"HDTV very, very good; SDTV not very good;
SD-DV very, very bad" - at least as seen on
this very, very good display...;-)