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Camera resolutions ???

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bigfilsing
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Camera resolutions ???

Postby bigfilsing » Thu, 28 Sep 2006 12:39 pm

Bit confused that we are all getting "wound up" by mega pixels this and high definition that.

Take your computer screen. Let say you've raided the bank and bought a 21 inch LCD screen . You run a high res graphics card licking out 1600 X 1200 on your screen that means 1,920,000 pixels ( not even 2 mega pixels) so your never going to see you 4 mega pixel image on your screen in one go.
The only benifit i can see is if you want to print A4 600dpi ( then you'd need a 31+ mega pixel camera)
or if you want to zoom in on your captured image.
For every day use we don;t need all these mega pixels yet we all get caught in the chase for more is better.

High definition is another classic con.
To date there are no true high definition sources available. Yes there's plasmas that claim to be high def or high def ready. But you still can't buy a true high def screen yet.
I think the less tech informed amoungst us are being conned.
Just yesterday i had a colleague about to part with some serious cash for a plasma that was supposidly "high def" Thinking his standard image from his SCV box would be great.
Beware!

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ksl
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Re: Camera resolutions ???

Postby ksl » Thu, 28 Sep 2006 2:09 pm

bigfilsing wrote:Bit confused that we are all getting "wound up" by mega pixels this and high definition that.

Take your computer screen. Let say you've raided the bank and bought a 21 inch LCD screen . You run a high res graphics card licking out 1600 X 1200 on your screen that means 1,920,000 pixels ( not even 2 mega pixels) so your never going to see you 4 mega pixel image on your screen in one go.
The only benifit i can see is if you want to print A4 600dpi ( then you'd need a 31+ mega pixel camera)
or if you want to zoom in on your captured image.
For every day use we don;t need all these mega pixels yet we all get caught in the chase for more is better.

High definition is another classic con.
To date there are no true high definition sources available. Yes there's plasmas that claim to be high def or high def ready. But you still can't buy a true high def screen yet.
I think the less tech informed amoungst us are being conned.
Just yesterday i had a colleague about to part with some serious cash for a plasma that was supposidly "high def" Thinking his standard image from his SCV box would be great.
Beware!


I tend to agree with you, although the race is on to match that of a film camera, and they have quite a way to go, before they can do that. the more pixels, the more definition, but like you say, we don't really need it. 3 mega seems enough for anyone, although the photography freaks will disagree.

With regards to HD ready, again the consumer is conned through the, the transfer from CRT, it is a marketing and business strategy, that is required to pay for the research and development costs, of reaching the ultimate level of consumer, TV. with factories costing billions of $$$, to produce the LCD & Plasma screens,, the development progress, is slow and expensive, in fact the manufacturers, are only just scraping through, by their bottoms, to make a living.

And lets face it, I was looking at a 42" Samsung, under the brand HPC for 1,699$ one cannot complain at the price, many people was paying that, for a 19 PC monitor, only 6 years ago.

But I do agree, those that have an idea of what it is all about, do not buy, straight away, because we know, what is going on in the tech arena.
I was also disappointed, with my Minolta digital D5 SLR camera, when i tried to connect to the CRT monitor, the photo's are crap, but on PC screen they are fine, it's all about the technologies, matching the appliances used. HDR may well sound good, but we are along way off, digital broadcasting, although some companies do transmit digital.

It's a very expensive and long process to convert to digital, yet, the actual digital chips, to convert over are not that expensive, so yes we all get ripped off. With fancy words and marketing. thats life in the fast lane! Not so bad if your rich.

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Postby Jedi » Thu, 28 Sep 2006 3:34 pm

On Megapixels, just because you don't need to print large, doesn't mean that others don't! In addition, more megapixels givels you flexibility with cropping (as you mentioned) and can enhance image sharpness when downsizing.

On HD sources, wrong! HD is available now. I have several HD IMAX movies. I think you need to rephrase your statement that HD sources are not 'widely' available... but they will be very, very soon.

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Postby bigfilsing » Thu, 28 Sep 2006 5:39 pm

Jedi wrote:On Megapixels, just because you don't need to print large, doesn't mean that others don't! In addition, more megapixels givels you flexibility with cropping (as you mentioned) and can enhance image sharpness when downsizing.

On HD sources, wrong! HD is available now. I have several HD IMAX movies. I think you need to rephrase your statement that HD sources are not 'widely' available... but they will be very, very soon.


Ah but what do you mean by HD? full 1080p at 30 frames a second?

What do you play your Imax movies on/ through? I used a so called high def player for a while but found the internal scaling actually made some movies worse.

I was aiming more at the brand that claimed to be the 1st high def plasma in Singapore and it indeed did have a verticle resolution of 1080 pixels but reading the fine print specs only had a horizontal res of 1024! which is lower than the current standard 1368 screens.

Get the spec sheets out before you get your wallet out. :D Boring reading but worth the time.

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Postby DimWit Kid » Fri, 29 Sep 2006 1:43 am

Jedi wrote:On Megapixels, just because you don't need to print large, doesn't mean that others don't! In addition, more megapixels givels you flexibility with cropping (as you mentioned) and can enhance image sharpness when downsizing.


If only majority of people who buys 8 or 10MP cameras and pay 100-200 bucks more are buying those with that in mind!

Most of people whom I have advised to reconsider do not really know what is the significance of the MP-rating of the camera they want to buy. Most of the time if you ask, they'd say "the picture should look better mah...." and that's all.

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Postby Jedi » Fri, 29 Sep 2006 7:43 am

bigfilsing wrote:Ah but what do you mean by HD? full 1080p at 30 frames a second?

What do you play your Imax movies on/ through?


HD is either 720p or 1080p. Framerate is more an issue of format (ie. PAL or NTSC). In this instance, the sources I have are 720p NTSC (29.97fps).

The movies are played on my media center PC connected to my home theatre system. My setup is currently 720p. I could do 1080i, but I don't see any point.

The pioneer 1080p set you are talking about is an amazing display. But there's still the question of which HD format will dominate the market, 720p or 1080p. My bet is that 720p will lead it initially as there are many 720p capable displays out there and hardly any 1080p ones.

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Postby bigfilsing » Fri, 29 Sep 2006 3:14 pm

Yeah i've looked at the Media Centre PC but never got around to experimenting with the OS! How do you find it? Any good or does it suffer the same woes as the other MS OS's?

I have been wacking some sources through an XBOX ( upgraded with xbox media centre) XBMC has been around for ages, in fact i think it may have inspired MS to get their act together. With the great graphics chips fitted to the xbox ( especially the 1.6 a & b versions) and the HD compatible cables it makes for a cheap good soloution to HD management.
What amazed me most is the quality it produces of XVID or DIVX mp4 TV shows. Even the lowest file size still gives good results. I downloaded some TV shows not available here and the results are great.

I'm just still amazed how we are conned into technology we don;t really need and more frustrated by the "big" manufacturers can;t make their mind up which norm to stick to.
It's the Betacam VHS wars all over again. ( the irony being that Phillips Video 2000 was better than both and in stereo)

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Postby Jedi » Fri, 29 Sep 2006 5:19 pm

My Media Center PC is the best gadget I've ever owned. :)

But it does take a bit of digging and knowledge sharing to get it really cranking. Now that i've done all the hard stuff, it's working brilliantly.

The format war between HD DVD and Bluray is insane. I'm keeping out of it until a victor is found.


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