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Why *Lower* Optical Zoom on Higher-Priced Camcorders?

Author
14 Jun 2006 7:04 PM
mutefan
I'm referring specifically to Panasonic in this case, although the case
seems to hold true for Sony and other manufacturers as well.  I've been
helping a relative gather information to buy a DVD camcorder.  In
almost all cases, the more features a camcorder has to offer--USB cable
(!), RW capabilities (as opposed to just -R), better still picture
resolution--the LOWER the optical zoom.

It isn't that I don't understand the manufacturers are trying to make a
buck, but the market is flooded with a gazillion models that are, well,
not good enough, when it could be flooded with maybe only
half-a-gazillion that aren't top-of-the-line.

What is the point to this, or this there a point?  In particular, I'd
like to know whether a DVD camcorder that can be edited within the
camera is worth buying if a person wants to point-and-shoot...but would
also like to be able to capture video sporadically onto his hard drive.

Thanks.

Author
14 Jun 2006 8:07 PM
Dave Martindale
mute***@yahoo.com writes:
>I'm referring specifically to Panasonic in this case, although the case
>seems to hold true for Sony and other manufacturers as well.  I've been
>helping a relative gather information to buy a DVD camcorder.  In
>almost all cases, the more features a camcorder has to offer--USB cable
>(!), RW capabilities (as opposed to just -R), better still picture
>resolution--the LOWER the optical zoom.

I've always assumed this was because of lower standards for cheaper
camcorders.  If you only want an image good enough for compressed
720x480 pixel video, the image delivered to the CCD doesn't have to be
all that sharp, which allows a longer maximum FL (and larger zoom range)
before the image gets too bad to be usable.

On the other hand, if the camera is also supposed to deliver 2 or 3 MP
still images on demand, the CCD needs to have that many pixels and the
lens needs to deliver much more detail to the CCD at maximum zoom.  At
the higher quality, the usable range is going to be shorter.

For example, a 3 MP image is around 2048x1536 pixels.  Maintaining
decent resolution at that size requires more than 3 times higher lens
resolution (in lp/mm) than standard definition video, assuming both
sensors are the same size.

    Dave
Author
14 Jun 2006 8:39 PM
mutefan
Dave Martindale wrote:
Show quoteHide quote
>
> I've always assumed this was because of lower standards for cheaper
> camcorders.  If you only want an image good enough for compressed
> 720x480 pixel video, the image delivered to the CCD doesn't have to be
> all that sharp, which allows a longer maximum FL (and larger zoom range)
> before the image gets too bad to be usable.
>
> On the other hand, if the camera is also supposed to deliver 2 or 3 MP
> still images on demand, the CCD needs to have that many pixels and the
> lens needs to deliver much more detail to the CCD at maximum zoom.  At
> the higher quality, the usable range is going to be shorter.
>
> For example, a 3 MP image is around 2048x1536 pixels.  Maintaining
> decent resolution at that size requires more than 3 times higher lens
> resolution (in lp/mm) than standard definition video, assuming both
> sensors are the same size.

I almost--*almost*--understand this.  If you happen to read what I'm
writing here, tell me if this is a good paraphrase: the reason why
lower-end cameras can have lower optical zoom BUT other apparent
freebies is because the other significant elements of the camera aren't
designed to require high optical zoom.

But if this is the case, why do some cheap camcorders have high optical
zoom--with lots of feature-related downsides--and others have low
optical zoom--with lots of feature-related upsides?  See, that's the
part that doesn't make sense.  I can, say, choose between a Panasonic
DVD recorder with 30x optical zoom and, well, nothing else, or with 10
optical zoom and great still picture resolution, etc.
Author
15 Jun 2006 12:52 PM
Tzortzakakis Dimitrios
? <mute***@yahoo.com> ?????? ??? ??????
Show quoteHide quote
news:1150317575.370607.60880@y41g2000cwy.googlegroups.com...
> Dave Martindale wrote:
> >
> > I've always assumed this was because of lower standards for cheaper
> > camcorders.  If you only want an image good enough for compressed
> > 720x480 pixel video, the image delivered to the CCD doesn't have to be
> > all that sharp, which allows a longer maximum FL (and larger zoom range)
> > before the image gets too bad to be usable.
> >
> > On the other hand, if the camera is also supposed to deliver 2 or 3 MP
> > still images on demand, the CCD needs to have that many pixels and the
> > lens needs to deliver much more detail to the CCD at maximum zoom.  At
> > the higher quality, the usable range is going to be shorter.
> >
> > For example, a 3 MP image is around 2048x1536 pixels.  Maintaining
> > decent resolution at that size requires more than 3 times higher lens
> > resolution (in lp/mm) than standard definition video, assuming both
> > sensors are the same size.
>
> I almost--*almost*--understand this.  If you happen to read what I'm
> writing here, tell me if this is a good paraphrase: the reason why
> lower-end cameras can have lower optical zoom BUT other apparent
> freebies is because the other significant elements of the camera aren't
> designed to require high optical zoom.
>
> But if this is the case, why do some cheap camcorders have high optical
> zoom--with lots of feature-related downsides--and others have low
> optical zoom--with lots of feature-related upsides?  >
that's what dave is writing.The manufacturer must sacrifice the high zoom if
the quality of other elements involved in the general movie quality is high,
or else keep the zoom low and the overall lens quality high.Maybe a
comparison will make this clearer-in (film) SLRs, a normal lens (50 mm) can
come at f 1.4 easily and with extremely high resolution, but a 70-210 zoom
at f 2.8  and at moderate to low resolution (and three times the weight).
>See, that's the
> part that doesn't make sense.  I can, say, choose between a Panasonic
> DVD recorder with 30x optical zoom and, well, nothing else, or with 10
> optical zoom and great still picture resolution, etc.

Hope this makes it clearer,
--
Tzortzakakis Dimitrios
major in electrical engineering,freelance electrician
542nd mechanized infantry batallion
dimtzort AT otenet DOT gr
Show quoteHide quote
>
Author
16 Jun 2006 9:05 AM
Au
In article <e6rlbr$5h***@mouse.otenet.gr>, "Tzortzakakis Dimitrios" <dimtz***@otenet.gr> wrote:
>The manufacturer must sacrifice the high zoom if
>the quality of other elements involved in the general movie quality is high,
>or else keep the zoom low and the overall lens quality high.Maybe a
>comparison will make this clearer-in (film) SLRs, a normal lens (50 mm) can
>come at f 1.4 easily and with extremely high resolution, but a 70-210 zoom
>at f 2.8  and at moderate to low resolution (and three times the weight).

Damn, beat me to the suggestion. For film cameras to have a decent zoom
(AND have a decent F-stop), the lenses become large in weight, and in size.
Two qualities that you don't really want in a consumer camcorder. Most
consumers you notice don't buy SLR cameras, they want small, light and
easy portability.

Same goes for camcorders.
Author
16 Jun 2006 10:07 AM
mutefan
Au wrote:
Show quoteHide quote
> In article <e6rlbr$5h***@mouse.otenet.gr>, "Tzortzakakis Dimitrios"

> >The manufacturer must sacrifice the high zoom if
> >the quality of other elements involved in the general movie quality is high,
> >or else keep the zoom low and the overall lens quality high.Maybe a
> >comparison will make this clearer-in (film) SLRs, a normal lens (50 mm) can
> >come at f 1.4 easily and with extremely high resolution, but a 70-210 zoom
> >at f 2.8  and at moderate to low resolution (and three times the weight).
>
> Damn, beat me to the suggestion. For film cameras to have a decent zoom
> (AND have a decent F-stop), the lenses become large in weight, and in size.
> Two qualities that you don't really want in a consumer camcorder. Most
> consumers you notice don't buy SLR cameras, they want small, light and
> easy portability.
>
> Same goes for camcorders.

I'm not being cranky; I'm so grateful for the responses finally coming
in.  I've spent 2+ years banging my head against the wall trying to
understand why the market is flooded with SUCH an unnecessary amount of
models by the same manufacturers.  (Maybe other, more knowledgeable
users are similarly confused???)

I'm beginning to understand what y'all are saying, but if what y'all
are saying is true, then why does Panasonic/Sony/et al bother to make,
say, five different versions of low-end cameras whose gigundous optical
zoom makes the consumer feel he/she is getting tons of video accuracy?
If this is a rhetorical or semi-rhetorical question--  Ignore.
Author
16 Jun 2006 10:02 AM
mutefan
Tzortzie :) wrote:

> that's what dave is writing.The manufacturer must sacrifice the high zoom if
> the quality of other elements involved in the general movie quality is high,
> or else keep the zoom low and the overall lens quality high.Maybe a
> comparison will make this clearer-in (film) SLRs, a normal lens (50 mm) can
> come at f 1.4 easily and with extremely high resolution, but a 70-210 zoom
> at f 2.8  and at moderate to low resolution (and three times the weight).

(If I offended you by shortening your name, let me know!)  First, as an
engineer and reader/poster here, could you recommend an intermediate
level site where ALL the elements of a camcorder are explained, and
their interaction with other elements perhaps even illustrated?  Thanks
for letting me know I was interpreting Dave wrong.

But I still am *somewhat* in the dark about this apparent (to an
uninformed layperson, that is) anomaly.
Author
16 Jun 2006 2:14 PM
Tzortzakakis Dimitrios
? <mute***@yahoo.com> ?????? ??? ??????
Show quoteHide quote
news:1150452170.686317.232870@h76g2000cwa.googlegroups.com...
> Tzortzie :) wrote:
>
> > that's what dave is writing.The manufacturer must sacrifice the high
zoom if
> > the quality of other elements involved in the general movie quality is
high,
> > or else keep the zoom low and the overall lens quality high.Maybe a
> > comparison will make this clearer-in (film) SLRs, a normal lens (50 mm)
can
> > come at f 1.4 easily and with extremely high resolution, but a 70-210
zoom
> > at f 2.8  and at moderate to low resolution (and three times the
weight).
>
> (If I offended you by shortening your name, let me know!)  First, as an
> engineer and reader/poster here, could you recommend an intermediate
> level site where ALL the elements of a camcorder are explained, and
> their interaction with other elements perhaps even illustrated?  Thanks
> for letting me know I was interpreting Dave wrong.
>
> But I still am *somewhat* in the dark about this apparent (to an
> uninformed layperson, that is) anomaly.
>
Maybe www.howstuffworks.com ?
Im not sure if it completely meets your requirements, but it's interesting.


--
Tzortzakakis Dimitrios
major in electrical engineering,freelance electrician
542nd mechanized infantry batallion
dimtzort AT otenet DOT gr
Author
15 Jun 2006 2:32 PM
PTravel
<mute***@yahoo.com> wrote in message
Show quoteHide quote
news:1150317575.370607.60880@y41g2000cwy.googlegroups.com...
> Dave Martindale wrote:
>>
>> I've always assumed this was because of lower standards for cheaper
>> camcorders.  If you only want an image good enough for compressed
>> 720x480 pixel video, the image delivered to the CCD doesn't have to be
>> all that sharp, which allows a longer maximum FL (and larger zoom range)
>> before the image gets too bad to be usable.
>>
>> On the other hand, if the camera is also supposed to deliver 2 or 3 MP
>> still images on demand, the CCD needs to have that many pixels and the
>> lens needs to deliver much more detail to the CCD at maximum zoom.  At
>> the higher quality, the usable range is going to be shorter.
>>
>> For example, a 3 MP image is around 2048x1536 pixels.  Maintaining
>> decent resolution at that size requires more than 3 times higher lens
>> resolution (in lp/mm) than standard definition video, assuming both
>> sensors are the same size.
>
> I almost--*almost*--understand this.  If you happen to read what I'm
> writing here, tell me if this is a good paraphrase: the reason why
> lower-end cameras can have lower optical zoom BUT other apparent
> freebies is because the other significant elements of the camera aren't
> designed to require high optical zoom.
>
> But if this is the case, why do some cheap camcorders have high optical
> zoom--with lots of feature-related downsides--and others have low
> optical zoom--with lots of feature-related upsides?  See, that's the
> part that doesn't make sense.  I can, say, choose between a Panasonic
> DVD recorder with 30x optical zoom and, well, nothing else, or with 10
> optical zoom and great still picture resolution, etc.

See what I wrote in a previous post.  Short answer: crappy consumer
camcorders can have crappy lenses.  Decent cameras require better glass.

Incidently, no one can hand-hold more than 10x.

Show quoteHide quote
>
Author
16 Jun 2006 10:11 AM
mutefan
PTravel wrote:
>
> Incidently, no one can hand-hold more than 10x.

Is this true for a 200+ pound guy, or true for a skinny petite woman,
or (to quote Jane Austen) "a truth universally acknowledged that a
stupid consumer is in need of great optical
zoom-for-the-sake-of-great-optical-zoom?"
Author
15 Jun 2006 2:30 PM
PTravel
Show quote Hide quote
"Dave Martindale" <da***@cs.ubc.ca> wrote in message
news:e6pqa6$1r9$2@swain.cs.ubc.ca...
> mute***@yahoo.com writes:
>>I'm referring specifically to Panasonic in this case, although the case
>>seems to hold true for Sony and other manufacturers as well.  I've been
>>helping a relative gather information to buy a DVD camcorder.  In
>>almost all cases, the more features a camcorder has to offer--USB cable
>>(!), RW capabilities (as opposed to just -R), better still picture
>>resolution--the LOWER the optical zoom.
>
> I've always assumed this was because of lower standards for cheaper
> camcorders.  If you only want an image good enough for compressed
> 720x480 pixel video, the image delivered to the CCD doesn't have to be
> all that sharp, which allows a longer maximum FL (and larger zoom range)
> before the image gets too bad to be usable.
>
> On the other hand, if the camera is also supposed to deliver 2 or 3 MP
> still images on demand, the CCD needs to have that many pixels and the
> lens needs to deliver much more detail to the CCD at maximum zoom.  At
> the higher quality, the usable range is going to be shorter.

Close, but not quite.

First of all, a good camcorder doesn't take stills.  Period.  The
requirements for a good camcorder are sufficiently different from a good
still camera that you cannot build one camera that is good at both.

Second, it's easy to build a lousy lens, far harder to build a good one.  A
good zoom is difficult to build, and the longer the zoom ratio the harder
(and more expensive) it is to build.  Crappy consumer camcorders produce
crappy consumer-grade video.  They don't need good lenses, so they can put
on longer optical zooms that introduce chromatic aberration, distortion,
lower the contrast, etc. and no one will care.  That's also why they include
so-called "digital zooming" which has such adverse effects on video quality
as to make it completely useless.


Show quoteHide quote
>
> For example, a 3 MP image is around 2048x1536 pixels.  Maintaining
> decent resolution at that size requires more than 3 times higher lens
> resolution (in lp/mm) than standard definition video, assuming both
> sensors are the same size.
>
> Dave
Author
16 Jun 2006 10:15 AM
mutefan
PTravel wrote:
>
> First of all, a good camcorder doesn't take stills.  Period.  The
> requirements for a good camcorder are sufficiently different from a good
> still camera that you cannot build one camera that is good at both.

And how!

> Second, it's easy to build a lousy lens, far harder to build a good one.  A
> good zoom is difficult to build, and the longer the zoom ratio the harder
> (and more expensive) it is to build.  Crappy consumer camcorders produce
> crappy consumer-grade video.  They don't need good lenses, so they can put
> on longer optical zooms that introduce chromatic aberration, distortion,
> lower the contrast, etc. and no one will care.  That's also why they include
> so-called "digital zooming" which has such adverse effects on video quality
> as to make it completely useless.

See, it's almost impossible for someone as ignorant as I am to follow
the undoubted logic of this too-information-packed paragraph.  But I'll
reread it and try.
Author
16 Jun 2006 10:33 AM
mutefan
Dave Martindale wrote:
Show quoteHide quote
>
> I've always assumed this was because of lower standards for cheaper
> camcorders.  If you only want an image good enough for compressed
> 720x480 pixel video, the image delivered to the CCD doesn't have to be
> all that sharp, which allows a longer maximum FL (and larger zoom range)
> before the image gets too bad to be usable.
>
> On the other hand, if the camera is also supposed to deliver 2 or 3 MP
> still images on demand, the CCD needs to have that many pixels and the
> lens needs to deliver much more detail to the CCD at maximum zoom.  At
> the higher quality, the usable range is going to be shorter.
>
> For example, a 3 MP image is around 2048x1536 pixels.  Maintaining
> decent resolution at that size requires more than 3 times higher lens
> resolution (in lp/mm) than standard definition video, assuming both
> sensors are the same size.

So what would you guys recommend that someone with a burning need for a
camcorder but with a limited budget do?  Don't laugh if I ask this, but
is it possible to buy a Digital 8 or High 8 camera with *better*
features than even a Mini*DV*?  Just give some suggestions as what
features are more, or AS, important as others.  Or just give some model
suggestions in the $300-$400 range (if you even travel the other side
of the camcorder tracks, that is).
Author
16 Jun 2006 3:20 PM
PTravel
<mute***@yahoo.com> wrote in message
Show quoteHide quote
news:1150454032.267003.195030@g10g2000cwb.googlegroups.com...
> Dave Martindale wrote:
>>
>> I've always assumed this was because of lower standards for cheaper
>> camcorders.  If you only want an image good enough for compressed
>> 720x480 pixel video, the image delivered to the CCD doesn't have to be
>> all that sharp, which allows a longer maximum FL (and larger zoom range)
>> before the image gets too bad to be usable.
>>
>> On the other hand, if the camera is also supposed to deliver 2 or 3 MP
>> still images on demand, the CCD needs to have that many pixels and the
>> lens needs to deliver much more detail to the CCD at maximum zoom.  At
>> the higher quality, the usable range is going to be shorter.
>>
>> For example, a 3 MP image is around 2048x1536 pixels.  Maintaining
>> decent resolution at that size requires more than 3 times higher lens
>> resolution (in lp/mm) than standard definition video, assuming both
>> sensors are the same size.
>
> So what would you guys recommend that someone with a burning need for a
> camcorder but with a limited budget do?  Don't laugh if I ask this, but
> is it possible to buy a Digital 8 or High 8 camera with *better*
> features than even a Mini*DV*?

I'm not sure what you mean by "features."  A camcorder, regardless of
storage medium, should record video.  As I mentioned in an earlier post,
extreme zoom ratios are meaningless, since hand-holding more than 10x will
result in video so shakey as to be unusuable.  Still imaging capabilities
actually degrade video performance.  What other "features" would you want?

With respect to quality, dollar for dollar you'll get better video from a
miniDV camcorder than a DVD camcorder.  Digital 8 is a dead medium, and only
the cheapest (and worst) camcorders are still available in this format.

I'm sorry I can't recommend specific models -- I shoot with prosumer
equipment.  However, Sony and Canon tend to make better quality machines,
generally.  Look for the _simplest_, meaning encumbered by the fewest
"features", machines with the largest CCDs that you can find.



Show quoteHide quote
> Just give some suggestions as what
> features are more, or AS, important as others.  Or just give some model
> suggestions in the $300-$400 range (if you even travel the other side
> of the camcorder tracks, that is).
>
Author
16 Jun 2006 6:40 PM
Gene E. Bloch
Let me add my (slightly cynical) thought.

Whatever your first choice is, it will be wrong.

What I am leading up to is this idea: just go ahead & buy a relatively
inexpensive, but half-way decent, camcorder for starters. As you use
it, you will learn a lot.

1. You will learn what you like in the way of features.

2. You will learn about things that don't work well - like ultra long
zooms and digital zoom, for instance.

3. You will learn a lot about making DVDs for yourself and for friends
(editing & authoring, in other words).

4. You might even learn that it is not the hobby for you :-)

5. You might even learn that your first camera is just right for you.

So next spring, you will have saved enough money to buy a better
camera, and you will have learned enough to make a pretty good choice -
pretty good for *you*, and that's what counts ...

Oh, BTW, be sure to set your camera for 16 bit audio and standard
recording speed before you start.

Show quoteHide quote
"PTravel" <ptra***@ruyitang.com> wrote in
news:4fg0muF1i8t22U1@individual.net:

>
> <mute***@yahoo.com> wrote in message
> news:1150454032.267003.195030@g10g2000cwb.googlegroups.com...
>> Dave Martindale wrote:
>>>
>>> I've always assumed this was because of lower standards for
>>> cheaper camcorders.  If you only want an image good enough for
>>> compressed 720x480 pixel video, the image delivered to the CCD
>>> doesn't have to be all that sharp, which allows a longer maximum
>>> FL (and larger zoom range) before the image gets too bad to be
>>> usable.
>>>
>>> On the other hand, if the camera is also supposed to deliver 2
>>> or 3 MP still images on demand, the CCD needs to have that many
>>> pixels and the lens needs to deliver much more detail to the CCD
>>> at maximum zoom.  At the higher quality, the usable range is
>>> going to be shorter.
>>>
>>> For example, a 3 MP image is around 2048x1536 pixels.
>>> Maintaining decent resolution at that size requires more than 3
>>> times higher lens resolution (in lp/mm) than standard definition
>>> video, assuming both sensors are the same size.
>>
>> So what would you guys recommend that someone with a burning need
>> for a camcorder but with a limited budget do?  Don't laugh if I
>> ask this, but is it possible to buy a Digital 8 or High 8 camera
>> with *better* features than even a Mini*DV*?
>
> I'm not sure what you mean by "features."  A camcorder, regardless
> of storage medium, should record video.  As I mentioned in an
> earlier post, extreme zoom ratios are meaningless, since
> hand-holding more than 10x will result in video so shakey as to be
> unusuable.  Still imaging capabilities actually degrade video
> performance.  What other "features" would you want?
>
> With respect to quality, dollar for dollar you'll get better video
> from a miniDV camcorder than a DVD camcorder.  Digital 8 is a dead
> medium, and only the cheapest (and worst) camcorders are still
> available in this format.
>
> I'm sorry I can't recommend specific models -- I shoot with
> prosumer equipment.  However, Sony and Canon tend to make better
> quality machines, generally.  Look for the _simplest_, meaning
> encumbered by the fewest "features", machines with the largest
> CCDs that you can find.
>
>
>
>> Just give some suggestions as what
>> features are more, or AS, important as others.  Or just give some
>> model suggestions in the $300-$400 range (if you even travel the
>> other side of the camcorder tracks, that is).
>>
>
>



--
Gene E. Bloch (Gino) ... letters617blochg3251
(replace the numbers by "at" and "dotcom")
Author
16 Jun 2006 10:38 PM
mutefan
PTravel wrote:
>
> I'm sorry I can't recommend specific models -- I shoot with prosumer
> equipment.  However, Sony and Canon tend to make better quality machines,
> generally.  Look for the _simplest_, meaning encumbered by the fewest
> "features", machines with the largest CCDs that you can find.

Would the Panasonic PV-GS120?  It's the bottom-of-the-barrel 3CCD.
Author
16 Jun 2006 11:10 PM
PTravel
<mute***@yahoo.com> wrote in message
news:1150497537.505677.207680@c74g2000cwc.googlegroups.com...
> PTravel wrote:
>>
>> I'm sorry I can't recommend specific models -- I shoot with prosumer
>> equipment.  However, Sony and Canon tend to make better quality machines,
>> generally.  Look for the _simplest_, meaning encumbered by the fewest
>> "features", machines with the largest CCDs that you can find.
>
> Would the Panasonic PV-GS120?  It's the bottom-of-the-barrel 3CCD.

Panasonic's bottom-line 3CCDs represent marketing more than quality -- 
Panasonic knew that 3CCD machines were regarded as superior, so they've made
some rather poor quality camcorders with 3 sensors to try to exploit that
niche.  Sensor size is everything when it comes to low-light sensitivity
and, to a great extent, quality and minimal articfacting (stair-step effects
on diagonal lines, vibrating on strong horizontals, etc.).  The Panasonic's
low-end 3ccd machines have small sensors and poor low-light performance.
Both Sony and Canon manufacture single-sensor machines that readily
outperform the Panasonic 3-ccd machine.
Show quoteHide quote
>
Author
17 Jun 2006 10:22 AM
mutefan
PTravel wrote:
> <mute***@yahoo.com> wrote in message
> >
> > Would the Panasonic PV-GS120?  It's the bottom-of-the-barrel 3CCD.
>
> Panasonic's bottom-line 3CCDs represent marketing more than quality --
> Panasonic knew that 3CCD machines were regarded as superior, so they've made
> some rather poor quality camcorders with 3 sensors to try to exploit that
> niche.  Sensor size is everything when it comes to low-light sensitivity
> and, to a great extent, quality and minimal articfacting (stair-step effects
> on diagonal lines, vibrating on strong horizontals, etc.).  The Panasonic's
> low-end 3ccd machines have small sensors and poor low-light performance.
> Both Sony and Canon manufacture single-sensor machines that readily
> outperform the Panasonic 3-ccd machine.

Would you recommend the Sony DCR-TRV280 Digital8 (even though I know
you and the others said D8 is dead)?  The pixel count on the CCD isn't
too good, but what do I care what format is dumped onto my hard drive?
Also, since my Pentium M is a class 3 (1.4), would you recommend
editing on this system?  (My relative has a regular old desktop with a
Pentium 4, and I'm assuming P4 is still the fastest processor, no?)
Author
17 Jun 2006 12:31 PM
PTravel
<mute***@yahoo.com> wrote in message
Show quoteHide quote
news:1150539750.318650.277830@y41g2000cwy.googlegroups.com...
> PTravel wrote:
>> <mute***@yahoo.com> wrote in message
>> >
>> > Would the Panasonic PV-GS120?  It's the bottom-of-the-barrel 3CCD.
>>
>> Panasonic's bottom-line 3CCDs represent marketing more than quality --
>> Panasonic knew that 3CCD machines were regarded as superior, so they've
>> made
>> some rather poor quality camcorders with 3 sensors to try to exploit that
>> niche.  Sensor size is everything when it comes to low-light sensitivity
>> and, to a great extent, quality and minimal articfacting (stair-step
>> effects
>> on diagonal lines, vibrating on strong horizontals, etc.).  The
>> Panasonic's
>> low-end 3ccd machines have small sensors and poor low-light performance.
>> Both Sony and Canon manufacture single-sensor machines that readily
>> outperform the Panasonic 3-ccd machine.
>
> Would you recommend the Sony DCR-TRV280 Digital8 (even though I know
> you and the others said D8 is dead)?

As you note, Digital8 is a dead format and, for that reason, I wouldn't
recommend it.  However, before I'd recommend anything, I'd need to know what
you plan to use the camcorder for, and what your specific requirements are
(that's two dangling prepositions).  My personal requirements are for the
highest-quality video possible for the travel videos that I shoot, so I'm
familiar with the higher-end prosumer machines.  If, on the other hand, your
interest is casual and occassional shooting of events like the kids'
birthdays, etc., you almost certainly wouldn't need the kind of gear that I
carry.

>  The pixel count on the CCD isn't
> too good, but what do I care what format is dumped onto my hard drive?

You don't want a high pixel count.  High pixel counts are relevant only to
still imaging.  No camcorder will produce digital stills of the same quality
as even a decent point-and-shoot still imaging camera.  However, the higher
the pixel count, the denser the pixels, the smaller each individual sensor
and the poorer the low-light response.  There are some camcorders that do
sub-pixel sampling and can make use of the of the higher density; however,
most simply throw that information away.


> Also, since my Pentium M is a class 3 (1.4), would you recommend
> editing on this system?  (My relative has a regular old desktop with a
> Pentium 4, and I'm assuming P4 is still the fastest processor, no?)

I used to edit on an Athlon K2 machine with a 500 MHz CPU and 352 meg of
RAM.  You can edit on your machine -- just be prepared for a longer wait to
render than, for example, on my 3.2 GHz P4 with 1 gig of RAM.  Also, you
should check the minimum requirements for whatever software you're using.  I
can tell you this:  if you're planning on using Premiere Pro and editing
HDV, you'll need a new machine (but so would I).


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