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- From: faust@asds.enet.dec.com (Stephen R Faust)
- Newsgroups: rec.photo
- Subject: What will it really take to replace FILM!
- Message-ID: <2332@sousa.tay.dec.com>
- Date: 23 Dec 92 16:11:12 GMT
- Sender: newsa@sousa.tay.dec.com
- Organization: Digital Equipment Corporation
- Lines: 77
-
-
-
- Hearing all the talk about how electronic imaging will replace film in the
- next 10 years of so, I starting thinking of what it will take technically to
- do this. This would give me a better idea of how long it will really take to
- make the switch. So, anyone have any input on the following?
-
- We would need the technology at minimum to be able to;
-
- Capture an image of approximately 150MB in 1/1000 of a second, with 24
- bit color. This would mean that we would need 150MB of memory in the
- camera. (more depending on the quality level..what would it take to
- capture a technically equivalent image to a 35mm image). Currently, they
- are getting acceptable results with 140MB images for magazine
- reproduction, which is poor compared to obtainable results on film/paper.
-
- A pick up device, CCD, or equiv, that is capable of capturing some odd
- million number of pixels, which is close to reasonable quality (150M or
- more).
-
- We would need a processor fast enough to write 150MB of image data to
- some disk or media, so that the camera will be ready for the next shot in
- a reasonable amount of time. Maybe not 5 times per second (as in a motor
- drive of 5FSP), but something less than a second to satisify
- sports/action/nature photographers, etc. What would it take in processor
- and speed to do this (much more than what we have today.)
-
- We would need to be able to store a minimum of 20 or so images on the
- media (thats around 3 gigabytes - more depending on resolution).
-
- This would have to be able to be hand held, less than a few pounds, or a
- 2 pound camera, with an additional 3 pounds or so on a seperate module
- that someone can wear on a belt, etc.
-
-
- Currently, the technology that we use today to get magazine quality images
- gives us a file of around 150MB by scanning film. This takes a few minutes
- to do, and is far from being hand held, or even being able to do this in the
- field. The speed increase is very significant! As is the pickup device and
- memory requirements. I can see the memory and storage requirements being met
- in maybe 10 years or so, but the pickup device and the speed required to do
- al this is a lot further off. And even when we get there, we would still
- have to shrink it down to a managable size, get it to run on a minimum of
- power (ie, AA cells or similar), and have some small disks that can store it
- all. This doesnt even take into account the devices that would be needed to
- finally print the image onto paper at a quality level that equals film and
- paper.
-
- I think film will be in wide use for the next 20-30 years, with the exception
- of the home market. Any professional applications will use film, then scan
- to electronic forms for photo-mechanical printing, manipulations, etc. I
- believe that the two forms will coexist rather nicely, and complement each
- other. Film will still be the capturing mechanism, and electronic means will
- start taking over the darkroom tasks in the professional field. In the home
- market, I can see film phasing out much sooner based on the lower quality
- standards (ie, most people are happy with their family photos on 3.5x5 prints
- from low quality P&S lenses), but still not for 10 years or more.
-
- So, what do you feel is technically required to obtain this, and how far off
- do you think it is. Is 150MB enough to get a high quailty image capable of
- 35mm quality (I think is not, but dont know for sure). Can we have CCD units
- or similar which can capture what modern leneses can deliver? What
- type/speed processor can capture and write all the data to memory in less
- than 1/1000 of a second, and to disk in less than maybe a 1/2 second? How
- long to shrink all this down to a hand held and managable size?
-
- I dont want to start a rat hole over when imaging is gong to replace film,
- but feel that a technical discussion on the technology needed, and when the
- technology might be available would allow us to come up with a reasonable
- projection based on facts, no fiction or opinion.
-
-
- ----------------------------------------------------------------------------
- Stephen R Faust faust@asds.enet.dec.com
- Digital Equipment Corp. Networks and Communications
- Stow MA (508)496-9063
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