Digital is perfectly linear. A 10 minutes exposure is exactly +1 EV over a 5 minutes exposure.
Concerning the "digital noise" issue, the main factor is the pixel size. The smaller the pixel, the higher the noise is.
The small sensors/high pixels compact digital cameras are generally very bad and generate a lot of noise.
On the other side, the DSLR with large sensors and pixel sizes over 6x6 microns are really good.
I have already done 10 minutes shot with my 1000 Euros Canon Eos 300D and there is zero hot pixel on it. Perfect to make pictures of night landscapes with star trails:-)
As far as quality, I may argue that my 1000 Euros (excl. lenses) 300D is better than my previous Nikon F601 with the lens I own.
If you want a high quality image (wether digital or film), you often need very expensive lenses. The pricer digital body becomes rapidly a non issue. And you still get all the avantages of digital : instant review and, more important, instant histogram to expose properly. Direct to computer to avoid the hassles of scanning film and slides.
Wrong. That's not because you're scanning a film at 8000 dpi that you will find more info into it.
One thing you should keep in mind is the way to ouput such a large document. At 300 dpi (continuous tones, no print pattern), the gigapixel image would be 3.3 meters wide. Your scan would be 6.8 meters wide. There is not way to print such a large document in continuous tones.
All the giant inkjet printers I know are only able to output a print pattern at 360 or 720 dpi. That's a lot less resolution than a 300 dpi continuous tone image. The problem is the same with a big professional printer.
The gigapixel image has already way more resolution than anything you need to make a large fine print.
I have already printed some poster sized pictures from my 6 megapixel DSLR using stitching (assembling several pictures with adequate software) and the results are absolutely stunning.
My biggest picture weights 25 megapixels but it is nothing compared to THAT : http://www.tawbaware.com/maxlyons/gigapixel.htm
1.09 Billion pixels !
Concerning pictures of the night sky, I think you have never seen pictures taken with a big sensor DSLR. Forget all the compact cameras with their small sensors very prone to digital noise.
With my zire 71, I can open a ppp connection through the USB cradle to my Linux box and it works perfectly.
You can have a good control of "where the files go", especially with a good launcher like ZLauncher and a SD/MMC memory card.
The Ti processor is maybe only clocked at 144 MHz and a lot of apps runs in 68k emulation but it makes a very responsive Palm ! Way faster than a friend's 400 MHz Dell Axim !
And most important feature of a Palm : I can use it with my desktop linux box !!!
It's not the French but the French government. They already decided that everybody should use mél (for email) and cédérom (for cdrom) but bobody uses these.
Everybody uses a lot of English words in French, especially in the computer domain : mail/email, web, home page, cdrom...
Courriel sounds a little strange in french (we all use the word email for way too much time).
But there is an other excellent word found by the French Canadians : Pourriel which is a contraction of "Pourriture Electronique" (electronic rot), an excellent translation for Spam:-)
Memory bandwith is not the worse aspect of the P4.
With a i865PE or i875P mainboard + dual DDR 400, the main memory bandwith is 6.4 GB/s theorical. 5 GB to 5.5 GB sustained bandwidth can be seen in benchmarks.
In several month, it will probably be pushed to 1 GHz FSB, dual DDR 500 = 8 GB/s.
It's not that bad for a personal computer.
Switch from 12 V to 42 V is really needed !
on
42-Volt Autos
·
· Score: 1
The reason why all the automotive industry want to switch from 12 to 42 V is due to the fact that in newer cars, the electric consumption is really too high due to the growing number of electric/electronic peripherals.
More watts with the same voltage means more Amperes and bigger wires in the electrical circuit (made of copper), more important weight, more expensive cabling and in the end, a lot more chance for the vehicle to caught fire if anything goes wrong in the electric system !!!
If the automotive industry want to introduce new equipments like electric braking systems (which permit to replace all the expensive an heavy hydraulic brakes, hydraulic ABS regulator, etc...), 42 V in cars is mandatory.
If this is a case of GPL violation by LinkSys, then all the DVD/Divx players based on SigmaDesign chips (EM 8500...) violates the GPL too (but I don't think so).
These players runs ucLinux and uses busybox but the drivers for the hardware are in separate binary modules (fipmodule.o and khwl.o). init and the applications called by init (fileplayer.bin and mpegplayer.bin) are all closed source. There is probably no modification of GPL code in these products.
The only problem is that Linux usage is written nowhere on the box or in the documentation.
Same thing in my company. We have a public/16 since the beginning of 1990 but it's totally useless as it's only used internally and we have no incoming trafic from the internet to this net. All the communication to the outside goes through several servers in a DMZ.
You forget one thing : what is expensive in a mobile phone network is not the mobile phone but the network !!!
Installing antennas everywhere to have a good coverage in a country like India for maybe just 10 m illions people^W clients (1% of the population) is very expensive !
A Minitel 2 (the black one) switched in the correct mode IS VT100 compatible with a 80x25 display.
The first version of the Minitel (the beige one) of course is not.
Re:French using out dated technology, Film at 11!
on
Minitel Hits Twenty
·
· Score: 1
In France it's called Télétexte (TV-text) and it's not interactive at all. Each TV channel carries a maximum of 999 text pages (of block graphics) looking a lot like minitel but it's a read only service. No uplink.
Some TV channels use some pages as a chat display where you can send messages using your mobilephone, adding some kind of interactivity for a very high price (0.15 Euro or $ for a comment !)
Re:These things can still be useful for something.
on
Minitel Hits Twenty
·
· Score: 1
I used my Minitel 2 (which had a 9600 baud RS 232 link and a 80 columns mode) as a text terminal on my Amiga 2000.
If I remenber correctly, from a shell on the main screen, you can launch a shell and attach it to the serial port. You can then use AmigaDos commands from the minitel (like a VT on a Unix/Linux machine) and keep the control of your Amiga even if a graphic app locked the graphic screen.
It plays DivX 5 / Xvid with GMC (Global Motion Compensation) and DivX subtitles since software release 2.6.3
The picture quality is far better than any Nvidia or ATI video card with tv-out (tested on my Sony 32" 16/9 TV).
No problems with all my DivX 4/5 MPEG4 Xvid with CBR or VBR MP3. The cool thing is the ability to keep the original DD 5.1 sound (448 kbits/s) in the DivX.
We should get DivX 3.11 decoding for the end of April.
4 month ago there was a lot of bugs in the firmware but today with the latest releases (2.6.5 ), it's absolutely perfect.
Slashdot Mirror
It doesn't do that anymore since the 2 or 3 firmware releases.
When I bought my DP450 more than 1 year ago, it was not able to play Divx 3 or ogg at all.
First support for DivX 3 was added in v 2.6.6, May 2003. "Working" full DivX 3 support with smooth playback came with 2.7.0, August 2003.
This player is really great and improves at each update.
I just hope Sigma Designs and Kiss will publish all the GPL code they use. They have already done that for ucLinux and busybox.
During the wait between films tuesday, I was just re-reading The Hobbit on my PalmPilot :-)
:-D
Since Tuesday, I have some difficulty to come back from Middle Earth
Digital is perfectly linear. A 10 minutes exposure is exactly +1 EV over a 5 minutes exposure.
:-)
Concerning the "digital noise" issue, the main factor is the pixel size. The smaller the pixel, the higher the noise is.
The small sensors/high pixels compact digital cameras are generally very bad and generate a lot of noise.
On the other side, the DSLR with large sensors and pixel sizes over 6x6 microns are really good.
I have already done 10 minutes shot with my 1000 Euros Canon Eos 300D and there is zero hot pixel on it. Perfect to make pictures of night landscapes with star trails
As far as quality, I may argue that my 1000 Euros (excl. lenses) 300D is better than my previous Nikon F601 with the lens I own.
If you want a high quality image (wether digital or film), you often need very expensive lenses. The pricer digital body becomes rapidly a non issue. And you still get all the avantages of digital : instant review and, more important, instant histogram to expose properly. Direct to computer to avoid the hassles of scanning film and slides.
Wrong. That's not because you're scanning a film at 8000 dpi that you will find more info into it.
One thing you should keep in mind is the way to ouput such a large document. At 300 dpi (continuous tones, no print pattern), the gigapixel image would be 3.3 meters wide. Your scan would be 6.8 meters wide. There is not way to print such a large document in continuous tones.
All the giant inkjet printers I know are only able to output a print pattern at 360 or 720 dpi. That's a lot less resolution than a 300 dpi continuous tone image. The problem is the same with a big professional printer.
The gigapixel image has already way more resolution than anything you need to make a large fine print.
There is a simpler solution :
You can use a 22 millions pixels medium format digital back. 50 pictures will be enough to generate the same result in a lot less time.
I have already printed some poster sized pictures from my 6 megapixel DSLR using stitching (assembling several pictures with adequate software) and the results are absolutely stunning.
My biggest picture weights 25 megapixels but it is nothing compared to THAT : http://www.tawbaware.com/maxlyons/gigapixel.htm
1.09 Billion pixels !
Concerning pictures of the night sky, I think you have never seen pictures taken with a big sensor DSLR. Forget all the compact cameras with their small sensors very prone to digital noise.
Maybe 1.09 billion pixels (40,784 x 26,800) is enough to beat it :
:
http://www.tawbaware.com/maxlyons/gigapixel.htm
It is done with a Canon D60 6 MPixels DSLR and PTAssembler + PanoramaTools, two great freeware and easy to use tools.
http://www.tawbaware.com/ptasmblr.htm
Don't forget to check the others pictures in "Max Lyons Digital Image Gallery"
http://www.tawbaware.com/maxlyons/
I own 5 Loki Games, that's more original games than the vast majority of Windows users !
The problem with Loki was not the sales but the poor management.
With my zire 71, I can open a ppp connection through the USB cradle to my Linux box and it works perfectly.
You can have a good control of "where the files go", especially with a good launcher like ZLauncher and a SD/MMC memory card.
The Ti processor is maybe only clocked at 144 MHz and a lot of apps runs in 68k emulation but it makes a very responsive Palm ! Way faster than a friend's 400 MHz Dell Axim !
And most important feature of a Palm : I can use it with my desktop linux box !!!
It's not the French but the French government. They already decided that everybody should use mél (for email) and cédérom (for cdrom) but bobody uses these.
Everybody uses a lot of English words in French, especially in the computer domain : mail/email, web, home page, cdrom...
When searching courriel with google.fr, there is 393 000 results. Not that bad... (163 millions for email and 449 000 for "courrier electronique").
o e= UTF-8&hl=fr&btnG=Recherche+Google&meta =
ttp://www.google.fr/search?q=courriel&ie=UTF-8&
Courriel sounds a little strange in french (we all use the word email for way too much time).
:-)
But there is an other excellent word found by the French Canadians : Pourriel which is a contraction of "Pourriture Electronique" (electronic rot), an excellent translation for Spam
Memory bandwith is not the worse aspect of the P4.
With a i865PE or i875P mainboard + dual DDR 400, the main memory bandwith is 6.4 GB/s theorical. 5 GB to 5.5 GB sustained bandwidth can be seen in benchmarks.
In several month, it will probably be pushed to 1 GHz FSB, dual DDR 500 = 8 GB/s.
It's not that bad for a personal computer.
The reason why all the automotive industry want to switch from 12 to 42 V is due to the fact that in newer cars, the electric consumption is really too high due to the growing number of electric/electronic peripherals.
More watts with the same voltage means more Amperes and bigger wires in the electrical circuit (made of copper), more important weight, more expensive cabling and in the end, a lot more chance for the vehicle to caught fire if anything goes wrong in the electric system !!!
If the automotive industry want to introduce new equipments like electric braking systems (which permit to replace all the expensive an heavy hydraulic brakes, hydraulic ABS regulator, etc...), 42 V in cars is mandatory.
If this is a case of GPL violation by LinkSys, then all the DVD/Divx players based on SigmaDesign chips (EM 8500...) violates the GPL too (but I don't think so).
These players runs ucLinux and uses busybox but the drivers for the hardware are in separate binary modules (fipmodule.o and khwl.o). init and the applications called by init (fileplayer.bin and mpegplayer.bin) are all closed source. There is probably no modification of GPL code in these products.
The only problem is that Linux usage is written nowhere on the box or in the documentation.
Same thing in my company. We have a public /16 since the beginning of 1990 but it's totally useless as it's only used internally and we have no incoming trafic from the internet to this net. All the communication to the outside goes through several servers in a DMZ.
You forget one thing : what is expensive in a mobile phone network is not the mobile phone but the network !!!
Installing antennas everywhere to have a good coverage in a country like India for maybe just 10 m illions people^W clients (1% of the population) is very expensive !
There is a broblem with our sbam filtering broduct.
:-)
You should install the latest batch #916 to ubdate your brogram
The funniest thing about the "French/Freedom Fries" joke is that nobody in France calls it "Frites Françaises" !
:-)
For the Frenchs, Fries are from Belgium, not from France
A Minitel 2 (the black one) switched in the correct mode IS VT100 compatible with a 80x25 display.
The first version of the Minitel (the beige one) of course is not.
In France it's called Télétexte (TV-text) and it's not interactive at all. Each TV channel carries a maximum of 999 text pages (of block graphics) looking a lot like minitel but it's a read only service. No uplink.
Some TV channels use some pages as a chat display where you can send messages using your mobilephone, adding some kind of interactivity for a very high price (0.15 Euro or $ for a comment !)
I used my Minitel 2 (which had a 9600 baud RS 232 link and a 80 columns mode) as a text terminal on my Amiga 2000.
:-)
If I remenber correctly, from a shell on the main screen, you can launch a shell and attach it to the serial port. You can then use AmigaDos commands from the minitel (like a VT on a Unix/Linux machine) and keep the control of your Amiga even if a graphic app locked the graphic screen.
Cool
You can encode a DivX from the DVD and keep the DD 5.1 soundtrack as-is in the DivX (it will just take more place, DD 5.1 = 448 kbits/s).
The Kiss DP 450 plays perfectly this kind of DD 5.1/DivX.
All tv-out video cards from ATI or NVidia produce a crappy tv picture when compared to the DP-450.
:-)
But if you want a shitty DivX player, the mini-itx based PC will be perfect
Wrong !
It plays DivX 5 / Xvid with GMC (Global Motion Compensation) and DivX subtitles since software release 2.6.3
The picture quality is far better than any Nvidia or ATI video card with tv-out (tested on my Sony 32" 16/9 TV).
No problems with all my DivX 4/5 MPEG4 Xvid with CBR or VBR MP3. The cool thing is the ability to keep the original DD 5.1 sound (448 kbits/s) in the DivX.
We should get DivX 3.11 decoding for the end of April.
4 month ago there was a lot of bugs in the firmware but today with the latest releases (2.6.5 ), it's absolutely perfect.