We had thought that producing some matter on digital camera printers would be an impossibility. However, once we started, there was no turning back.
Today's digital camera printers Article
The Camera Obscura: What Does It Relate To?
The term camera obscura arises from time to time in the photoraphy arena. I remember the time I first heard the term but knew not what it was. By the second or third time someone mentioned it in passing, I just had to look it up and I'm glad I did. It won't help you take better pictures and you won't earn more money but will gain some knowledge that starts the knowledge drive and understanding of the principles of photography that much further.
If you don't know anything about the camera obscura, you will after this. Did you ever ask yourself why are photographic devices called cameras? They were called cameras because their direct ancestor is the camera obscura, an optical device functioning on the basis of a simple law of physics. Camera Obscura is the Latin for dark room. It is important to understand it is not an invented mechanical device; it works on a naturally occurring phenomenon. It is like a fire or rainbow.
To fully understand the concept, you can try this out: on a bright day, get into a very dark room (you can obtain the darkness by covering the window with an opaque, but thin material). Make a pinhole in the item that covers the window. If the hole is small enough, on the opposite wall you will see the world outside the window, in full color and motion and turned upside down. Your room is now a camera obscura.
Let's see what is the principle of the camera obscura .When the rays reflected from the bright objects outside (this is why you need to make the experiment on a bright day) pass through the pinhole they do not scatter. Instead, they cross and reform as an upside down image on the opposite wall, or on any flat surface held parallel to the hole.
The principles of the camera obscura have been known since antiquity. Its earliest mention was by the Chinese philosopher Mo-Ti in the 5th century BC. His experiment was similar to the one described above. He called the darkened room the "locked treasure room". Aristotle (3rd century BC) also understood the principle of the camera obscura. It has been claimed that the Islamic scientist Abu Ali Al-Hasan Ibn al-Haitham (also known as Al-Hazen) is the one who actually discovered it while carrying out some experiments in optics, in the early 11th century, Egypt.
In the 15th century Leonardo da Vinci described camera obscura in Codex Atlanticus. It appears that he was the first who discovered its potential as a drawing aid. In the 17th and 18th century artists such as Johannes Vermeer, Canaletto, Guardi and Paul Sandby were known for their incredible attention to detail. Therefore, it has been speculated that they made use of the camera obscura. If you've seen Girl with a Pearl Earring (a movie about how Vermeer created his masterpiece that gave the name of the film), you must remember that "magic box" that Griet finds in the artist's atelier and her surprise when he shows her the way it works.
The camera obscura used by artists was not the rudimentary one described in the beginning of the article. The image quality was improved by adding a convex lens into the aperture and a set of mirrors solved the problem of the upside down image.
Let's now understand how din this simple optical device turn into the photographic camera. The camera obscura managed to get an accurate image of the world outside; the only problem remained recording this image. Therefore, adding a sheet of light sensitive material to the little modified camera obscura was enough. This is the way photography was invented in the early 19th century.
Another use of the camera obscura was for entertainment; some camera obscura rooms have been built at the seaside or in areas of scenic beauty as tourist attractions. Some of them still survive. They are large chambers situated in high buildings. A live panorama of the outside is projected inside the room through a rotating lens. Some of you might ask yourselves what is the point of going into a dark room to look at the reflection of something you can see outside. The interesting thing in this kind of experience is not the view itself, but the feeling you get when you are just a spectator of the world that surrounds you.
Personally, I am absolutely fascinated by the camera obscura. There are many interesting things about it that I did not mention in this article. For instance, with its aid, you can experiment that light travels in time, with speed, and even calculate the speed of light. This was Al-Hazen's discovery. Another interesting thing is that the German astronomer Johannes Kepler used a camera obscura for his astronomical observations. And there is much more to find out about this magical device...
This article has been supplied courtesy of Roy Barker. Roy often writes and works closely with <strong>Profitable Photography Business</strong>. This site is dedicated to coaching you in starting your own photography business but places a strong emphasis on profitability issues & guidelines. You can also gain many photography resources (some free) from <strong>Digital Photography Equipment</strong> If you seek further guides, helpful hints, articles and news, you can go to http://www.photography-business-tips.com which also has a Photographers Forum for exchange of views with other photographers.
About the Author
This article has been supplied courtesy of Roy Barker. Roy often writes and works closely with http://profitable-photography.com This site is dedicated to coaching you in starting your own photography business but places a strong emphasis on profitability issues & guidelines. You can also gain many photography resources (some free) from http://photography-business-tips.com
Recommended digital camera printers Items
Bushnell 4x30 Instafocus Compact Powerview Binocular
Bushnell 4x30 Instafocus Compact Powerview Binocular
The Bushnell LiteVision Compact Powerview binoculars are easy to hold and easy to adjust for the general and outdoor user. They allow you to view an expanse of 650 feet from 1,000 yards away. Built out of the same high-quality material and optics as other members of Bushnell's Powerview series, the Bushnell LiteVision compact binoculars are remarkably compact, light, and portable. These binoculars come with a neck strap and carrying case.
Customer Review: HAPPY CUSTOMER
These Bushnell opera glasses are SUPER GREAT !!!
So easy to carry --- for the price you can't ask for a better product
Customer Review: Useless even if you don't care about quality
The other reviewers who commented on the field of view are quite right. At this price you don't expect optical quality, but this binoc gives an image so teeny that quality is irrelevant. It's like looking down a pair of soda-straws. It's my impression that they were actually designed to have a wide field of view, but are manufactured with a ring-shaped baffle inside that cuts out most of the visual field. (Admittedly I didn't smack 'em open with a hammer to check. Just tossed 'em in the trash.)The folks at Bushnell suggested I send them in for inspection and "possible" replacement, but it wasn't worth the shipping...
Sony KDF-50E2000 50" Grand WEGA 3LCD Rear Projection Television
Sony KDF-50E2000 50" Grand WEGA 3LCD Rear Projection Television
Supplied Accessories:KDF-50E2000 TV, remote control (RM-YD010), instruction manual, Quick Set Up Guide
Sony's KDF-50E2000 50" TV is everything that you look for in a big screen TV, producing high-detail picture quality, natural color reproduction and exceptional brightness levels. The 3LCD technology uses three LCD chips, one for each of the primary colors (red, blue and green) to create phenomenal, vivid color. The Cinema Black Pro function creates deep blacks, while the Digital Reality Creation(TM) (DRC) replaces the NTSC signals with HD equivalents, producing sharper, interlaced programming. Featuring enhanced connectivity via dual HDMI input and PC input through HDMI, Sony's Grand WEGA LCD projection televisions provide quality playback of nearly every connected device. The thin dark black bezel, compact body and barely visible speakers located at the bottom of the set complete this complete home theater experience. 16 - 9 aspect ratio High-speed A/D (analog-to-digital) converters 3-D Y/C Comb Filter for minimizing cross color and dot structure artifacts Digital MPEG Noise Reduction Circuit reduces MPEG artifacts such as mosquito noise Digital Temporal 3-D Noise Reduction (pixel-by-pixel basis) Viewing Angles - 130° horizontal, 60° vertical Speed Surf Channel Selection 3-D Y/C Comb Filter NTSC color system with ATSC tuner (8VSB terrestrial)&QAM on Cable Adjustable color temperature Steady Sound equalizes volume levels between programs and commercials Dolby Virtual Surround SRS TruSurround XT Audio Effect Inputs/Outputs - 2 rear HDMI, 3 Component in (1 side, 2 rear), Optical out, Audio out, 1 rear S-Video, 2 Composite (1 side, 2 rear), 5 Analog (1 side, 4 rear) Auto SAP Picture Freeze Favorite Channel tool Channel Jump, Skip/Add, Label functions Caption Vision V-Chip Clock and sleep timer 2 timer events Unit Dimensions(WxHxD) - 43.15 x 3
Customer Review: After 6 months, we're still in love with the picture
This was one of our family's better purchases. The picture is stunning, especially with the right components like an HDMI DVD player hooked up to it (would love to see BlueRay), and an HD cable box, and (my son would say) a Nintendo Wii! We've had so much fun playing games at life size, and watching movies and sports that I really do feel like I've gotten an excellent bargain. The tech specs: it's easy to set up and create custom settings (I recommend using a video like 'Finding Nemo' that has a set-up guide for video and audio on it), it shows a picture quickly enough when turned on, and as long as you don't clean it with something that removes the anti-glare coating it has a pretty decent viewing angle for a rear-projection TV. I use a surround sound system so I'd look to another review if you're curious about its sound quality. One concern I had was that I would regret not going with a plasma or LCD, but I've had zero regrets - great tv! You can't go wrong, especially as they drop in price.
Customer Review: 18 months old and it's gonna cost a fortune to fix
we bought this Sony in July of 06 and now (Jan-08) we have ghosting color bands at the top of the screen that have doubled in size in less than a month. the closest Sony tech is 70+ miles away and I have to haul it up there, pay him $225 and pray it's the Optical Block that's the issue which should still be under warranty (we hope). This is the second Sony projection TV that has died in under 5 years. Shame on me for getting this one. Guess Bush's 'stimulus' will be going to a new TV! don't get one, you'll end up paying for it. just google 'Sony optical block' and you'll see what I'm talking about.
Sunpak PF30X Flash with i-TTL for Nikon Digital SLR Cameras
Sunpak PF30X Flash with i-TTL for Nikon Digital SLR Cameras
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American Recorder PHO-1017 Heavy-Duty Table-Top Stand
American Recorder PHO-1017 Heavy-Duty Table-Top Stand
Extra-large steel legs and thick aluminum extension armPerfect for close-ups and small work areasAllows for straight-down camera shotsPivoting mount and removeable shoeDesigned for use with full-size SLR cameras
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 CameraTown.Com (press release) | Canon expands digital camera and photo printer line - Update RTT News, NY - (RTTNews) - Tuesday, digital imaging company Canon USA, (CAJ: News ) said it was expanding its digital camera line and compact photo printer line with the ... Canon PowerShot A2000 IS Canon Preps For Xmas With New Powershots Three new Canon Powershots |
Tech Q&A
Thu, 28 Aug 2008 07:00:00 GMT
Q: I need help removing porn from my computer. It was recently stolen and recovered, but came back with links to porn.
Single-time camera for the underwater survey
Wed, 20 Aug 2008 03:00:16 -0700
Plaza Create Co from Japan it let out the digital camera ECO Digi Mode, oriented to the underwater survey. Camera is capable of making photographs with permission 3 mp and has display with the diagonal of 2,4 inches, and also built-in flash. It gadzhet capable of workin
Today's digital camera printers Article
The Camera Obscura: What Does It Relate To?
The term camera obscura arises from time to time in the photoraphy arena. I remember the time I first heard the term but knew not what it was. By the second or third time someone mentioned it in passing, I just had to look it up and I'm glad I did. It won't help you take better pictures and you won't earn more money but will gain some knowledge that starts the knowledge drive and understanding of the principles of photography that much further.
If you don't know anything about the camera obscura, you will after this. Did you ever ask yourself why are photographic devices called cameras? They were called cameras because their direct ancestor is the camera obscura, an optical device functioning on the basis of a simple law of physics. Camera Obscura is the Latin for dark room. It is important to understand it is not an invented mechanical device; it works on a naturally occurring phenomenon. It is like a fire or rainbow.
To fully understand the concept, you can try this out: on a bright day, get into a very dark room (you can obtain the darkness by covering the window with an opaque, but thin material). Make a pinhole in the item that covers the window. If the hole is small enough, on the opposite wall you will see the world outside the window, in full color and motion and turned upside down. Your room is now a camera obscura.
Let's see what is the principle of the camera obscura .When the rays reflected from the bright objects outside (this is why you need to make the experiment on a bright day) pass through the pinhole they do not scatter. Instead, they cross and reform as an upside down image on the opposite wall, or on any flat surface held parallel to the hole.
The principles of the camera obscura have been known since antiquity. Its earliest mention was by the Chinese philosopher Mo-Ti in the 5th century BC. His experiment was similar to the one described above. He called the darkened room the "locked treasure room". Aristotle (3rd century BC) also understood the principle of the camera obscura. It has been claimed that the Islamic scientist Abu Ali Al-Hasan Ibn al-Haitham (also known as Al-Hazen) is the one who actually discovered it while carrying out some experiments in optics, in the early 11th century, Egypt.
In the 15th century Leonardo da Vinci described camera obscura in Codex Atlanticus. It appears that he was the first who discovered its potential as a drawing aid. In the 17th and 18th century artists such as Johannes Vermeer, Canaletto, Guardi and Paul Sandby were known for their incredible attention to detail. Therefore, it has been speculated that they made use of the camera obscura. If you've seen Girl with a Pearl Earring (a movie about how Vermeer created his masterpiece that gave the name of the film), you must remember that "magic box" that Griet finds in the artist's atelier and her surprise when he shows her the way it works.
The camera obscura used by artists was not the rudimentary one described in the beginning of the article. The image quality was improved by adding a convex lens into the aperture and a set of mirrors solved the problem of the upside down image.
Let's now understand how din this simple optical device turn into the photographic camera. The camera obscura managed to get an accurate image of the world outside; the only problem remained recording this image. Therefore, adding a sheet of light sensitive material to the little modified camera obscura was enough. This is the way photography was invented in the early 19th century.
Another use of the camera obscura was for entertainment; some camera obscura rooms have been built at the seaside or in areas of scenic beauty as tourist attractions. Some of them still survive. They are large chambers situated in high buildings. A live panorama of the outside is projected inside the room through a rotating lens. Some of you might ask yourselves what is the point of going into a dark room to look at the reflection of something you can see outside. The interesting thing in this kind of experience is not the view itself, but the feeling you get when you are just a spectator of the world that surrounds you.
Personally, I am absolutely fascinated by the camera obscura. There are many interesting things about it that I did not mention in this article. For instance, with its aid, you can experiment that light travels in time, with speed, and even calculate the speed of light. This was Al-Hazen's discovery. Another interesting thing is that the German astronomer Johannes Kepler used a camera obscura for his astronomical observations. And there is much more to find out about this magical device...
This article has been supplied courtesy of Roy Barker. Roy often writes and works closely with <strong>Profitable Photography Business</strong>. This site is dedicated to coaching you in starting your own photography business but places a strong emphasis on profitability issues & guidelines. You can also gain many photography resources (some free) from <strong>Digital Photography Equipment</strong> If you seek further guides, helpful hints, articles and news, you can go to http://www.photography-business-tips.com which also has a Photographers Forum for exchange of views with other photographers.
About the Author
This article has been supplied courtesy of Roy Barker. Roy often writes and works closely with http://profitable-photography.com This site is dedicated to coaching you in starting your own photography business but places a strong emphasis on profitability issues & guidelines. You can also gain many photography resources (some free) from http://photography-business-tips.com
Recommended digital camera printers Items
Bushnell 4x30 Instafocus Compact Powerview Binocular
Bushnell 4x30 Instafocus Compact Powerview Binocular
The Bushnell LiteVision Compact Powerview binoculars are easy to hold and easy to adjust for the general and outdoor user. They allow you to view an expanse of 650 feet from 1,000 yards away. Built out of the same high-quality material and optics as other members of Bushnell's Powerview series, the Bushnell LiteVision compact binoculars are remarkably compact, light, and portable. These binoculars come with a neck strap and carrying case.
Customer Review: HAPPY CUSTOMER
These Bushnell opera glasses are SUPER GREAT !!!
So easy to carry --- for the price you can't ask for a better product
Customer Review: Useless even if you don't care about quality
The other reviewers who commented on the field of view are quite right. At this price you don't expect optical quality, but this binoc gives an image so teeny that quality is irrelevant. It's like looking down a pair of soda-straws. It's my impression that they were actually designed to have a wide field of view, but are manufactured with a ring-shaped baffle inside that cuts out most of the visual field. (Admittedly I didn't smack 'em open with a hammer to check. Just tossed 'em in the trash.)The folks at Bushnell suggested I send them in for inspection and "possible" replacement, but it wasn't worth the shipping...
Sony KDF-50E2000 50" Grand WEGA 3LCD Rear Projection Television
Sony KDF-50E2000 50" Grand WEGA 3LCD Rear Projection Television
Supplied Accessories:KDF-50E2000 TV, remote control (RM-YD010), instruction manual, Quick Set Up Guide
Sony's KDF-50E2000 50" TV is everything that you look for in a big screen TV, producing high-detail picture quality, natural color reproduction and exceptional brightness levels. The 3LCD technology uses three LCD chips, one for each of the primary colors (red, blue and green) to create phenomenal, vivid color. The Cinema Black Pro function creates deep blacks, while the Digital Reality Creation(TM) (DRC) replaces the NTSC signals with HD equivalents, producing sharper, interlaced programming. Featuring enhanced connectivity via dual HDMI input and PC input through HDMI, Sony's Grand WEGA LCD projection televisions provide quality playback of nearly every connected device. The thin dark black bezel, compact body and barely visible speakers located at the bottom of the set complete this complete home theater experience. 16 - 9 aspect ratio High-speed A/D (analog-to-digital) converters 3-D Y/C Comb Filter for minimizing cross color and dot structure artifacts Digital MPEG Noise Reduction Circuit reduces MPEG artifacts such as mosquito noise Digital Temporal 3-D Noise Reduction (pixel-by-pixel basis) Viewing Angles - 130° horizontal, 60° vertical Speed Surf Channel Selection 3-D Y/C Comb Filter NTSC color system with ATSC tuner (8VSB terrestrial)&QAM on Cable Adjustable color temperature Steady Sound equalizes volume levels between programs and commercials Dolby Virtual Surround SRS TruSurround XT Audio Effect Inputs/Outputs - 2 rear HDMI, 3 Component in (1 side, 2 rear), Optical out, Audio out, 1 rear S-Video, 2 Composite (1 side, 2 rear), 5 Analog (1 side, 4 rear) Auto SAP Picture Freeze Favorite Channel tool Channel Jump, Skip/Add, Label functions Caption Vision V-Chip Clock and sleep timer 2 timer events Unit Dimensions(WxHxD) - 43.15 x 3
Customer Review: After 6 months, we're still in love with the picture
This was one of our family's better purchases. The picture is stunning, especially with the right components like an HDMI DVD player hooked up to it (would love to see BlueRay), and an HD cable box, and (my son would say) a Nintendo Wii! We've had so much fun playing games at life size, and watching movies and sports that I really do feel like I've gotten an excellent bargain. The tech specs: it's easy to set up and create custom settings (I recommend using a video like 'Finding Nemo' that has a set-up guide for video and audio on it), it shows a picture quickly enough when turned on, and as long as you don't clean it with something that removes the anti-glare coating it has a pretty decent viewing angle for a rear-projection TV. I use a surround sound system so I'd look to another review if you're curious about its sound quality. One concern I had was that I would regret not going with a plasma or LCD, but I've had zero regrets - great tv! You can't go wrong, especially as they drop in price.
Customer Review: 18 months old and it's gonna cost a fortune to fix
we bought this Sony in July of 06 and now (Jan-08) we have ghosting color bands at the top of the screen that have doubled in size in less than a month. the closest Sony tech is 70+ miles away and I have to haul it up there, pay him $225 and pray it's the Optical Block that's the issue which should still be under warranty (we hope). This is the second Sony projection TV that has died in under 5 years. Shame on me for getting this one. Guess Bush's 'stimulus' will be going to a new TV! don't get one, you'll end up paying for it. just google 'Sony optical block' and you'll see what I'm talking about.
Sunpak PF30X Flash with i-TTL for Nikon Digital SLR Cameras
Sunpak PF30X Flash with i-TTL for Nikon Digital SLR Cameras
The PF30X is a compact, lightweight, full-featured shoe mount electronic flash for digital SLR cameras. The Nikon version is i-TTL compatible with models D80, D70s, D70, D50, and D200 cameras.
American Recorder PHO-1017 Heavy-Duty Table-Top Stand
American Recorder PHO-1017 Heavy-Duty Table-Top Stand
Extra-large steel legs and thick aluminum extension armPerfect for close-ups and small work areasAllows for straight-down camera shotsPivoting mount and removeable shoeDesigned for use with full-size SLR cameras
News about digital camera printers
Canon expands digital camera and photo printer line - Update - RTT News
Tue, 26 Aug 2008 05:14:29 GMT
CameraTown.Com (press release) | Canon expands digital camera and photo printer line - Update RTT News, NY - (RTTNews) - Tuesday, digital imaging company Canon USA, (CAJ: News ) said it was expanding its digital camera line and compact photo printer line with the ... Canon PowerShot A2000 IS Canon Preps For Xmas With New Powershots Three new Canon Powershots |
Tech Q&A
Thu, 28 Aug 2008 07:00:00 GMT
Q: I need help removing porn from my computer. It was recently stolen and recovered, but came back with links to porn.
Single-time camera for the underwater survey
Wed, 20 Aug 2008 03:00:16 -0700
Plaza Create Co from Japan it let out the digital camera ECO Digi Mode, oriented to the underwater survey. Camera is capable of making photographs with permission 3 mp and has display with the diagonal of 2,4 inches, and also built-in flash. It gadzhet capable of workin
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