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#41
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Turning film cameras into digital cameras
=(8) wrote:
"dj_nme" wrote in message ... =(8) wrote: I wasn't talking about a digital back. I was talking about a 35mm size roll of film with a piece of film out sized package then went right in to the 35mm camera film compartment. You then closed the back just like if you had put a roll of film in it. This is totally different from a back as it could also be used with any type of 35mm camera. =(8) The first problem that I can see with a generic drop-in digital film replacement is that every camera design put the film through a slightly different path. If the digital film sensor is aligned to fit into a Nikon F1, then it probably wont fit properly inot a Canon T1 or a Pentax K1000 or a Olympus OM1. Then you also have the problem of interfacing the shutter mechanism with the sensor so that it knows when to start and stop capturing, what may work on a Pentax Spotmatic probably wont work with a Canon EOS 300. If these were the only hurdles to designing and building a drop-in digital film, then Imagek should have been able to solve it and not fail and then vanish in a cloud of vaporware. See we all now understand why this thing never made it out of the prototype stage and was basically stillborn. Interesting idea, but I don't think feasible unless you want to make a different one for each camera make and model and where's the sense in that. By the time they had the two sample images out they were already behind what most mid priced digital cameras could do at the time. =(8) Unfortunately, that's about it. Kodak did it's best with their DCS backs for Nikon and Canon SLR cameras, but these were for only a limited number of highly advanced film camera models that had extensive electronic interfacing already built into them. Such is life. |
#42
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Turning film cameras into digital cameras
In article ,
dj_nme wrote: but these were for only a limited number of highly advanced film camera models that had extensive electronic interfacing already built into them. The F3 doesn't have extensive electronic interfacing. -- That was it. Done. The faulty Monk was turned out into the desert where it could believe what it liked, including the idea that it had been hard done by. It was allowed to keep its horse, since horses were so cheap to make. -- Douglas Adams in Dirk Gently's Holistic Detective Agency |
#43
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Turning film cameras into digital cameras
Philip Homburg wrote:
In article , dj_nme wrote: but these were for only a limited number of highly advanced film camera models that had extensive electronic interfacing already built into them. The F3 doesn't have extensive electronic interfacing. A good point, it must have had enough interfacing to tell the digital back when to start and stop capturing. Either that or the DCS controls the shutter mechanism, as there is an additional shutter-grip that is part of the DCS back. The descriptions online of the original DCS aren't detailed enough to draw any solid conclusion. |
#44
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Turning film cameras into digital cameras
In article ,
dj_nme wrote: A good point, it must have had enough interfacing to tell the digital back when to start and stop capturing. Either that or the DCS controls the shutter mechanism, as there is an additional shutter-grip that is part of the DCS back. The descriptions online of the original DCS aren't detailed enough to draw any solid conclusion. I doubt that the F3 reports when the shutter is released. Controlling both the back and the F3 using a separate shutter release sounds like a reasonable approach. -- That was it. Done. The faulty Monk was turned out into the desert where it could believe what it liked, including the idea that it had been hard done by. It was allowed to keep its horse, since horses were so cheap to make. -- Douglas Adams in Dirk Gently's Holistic Detective Agency |
#45
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Turning film cameras into digital cameras
Philip Homburg wrote:
In article , dj_nme wrote: A good point, it must have had enough interfacing to tell the digital back when to start and stop capturing. Either that or the DCS controls the shutter mechanism, as there is an additional shutter-grip that is part of the DCS back. The descriptions online of the original DCS aren't detailed enough to draw any solid conclusion. I doubt that the F3 reports when the shutter is released. Controlling both the back and the F3 using a separate shutter release sounds like a reasonable approach. How was the release arranged on F3s with motor drives? Was there a separate release or did the regular release activate the motor? If the latter, that interface could probably be used for the sensor. -- -- --John to email, dial "usenet" and validate (was jclarke at eye bee em dot net) |
#46
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Turning film cameras into digital cameras
On Apr 6, 9:28 pm, wrote:
Let's for the moment we think "out of the box". If there is a product which has the shape of either a 35 mm or 120 film cartridge, and you can just load it into your old film camera. However, this product acts like a digital "film", in which it will store images in digital format, instead of into film, would you buy such a product? It is just exactly like your old film cartridge, put into the back of your camera, set the camera as it has a film in it, advance the lever , take photos, go to next shot, etc. The difference would be when you complete the shots (24 or 36 exposure), you connect this cartridge to your computer and downloaded the digital data, just like a media card in your digital cameras. This product would be re-used again and again, just like the digital cameras. Some of you may said that is the same question whether there is a "back cartridge" that can be fitted into the old Hasselblad, Mamiya RB or M645, in which it changes into digital cameras. However, I heard that this speacil back is very expensive. Correct me if such a product exist for professional photographers, but at a very high costs! (such that it is just easier to throw away the old cameras and buy a new digital one). The next question is whether technically this is possible. Will people buy them, and use their old cameras (which some had invested heavily before the digital era came to play). This sounds like a crazy idea, but I sometime wonder that if it is possible. There are lots of smart people and inventors in this world, and I am sure they have the brain to create such a product. I am sure that this would not be welcomed by digital cameras' manufacturers, as it will compete with their product. Although some of the "players" are still the same (Kodak, Fuji, Nikon, Canon, Pentax, etc). Unfortunately, we are living in a world which are driven by narrow "track of minds", set by big corporations which decided upon our direction into the future. Thanks for sharing my "dream". I am now awake from my day dreaming. Thanks for the discussion. My father has an old Hasselblad that he is looking into getting a digital back for and we were just in a photography shop in downtown Chicago doing some pricing for it, as well as online. Yes it is a small fortune to do so! It is the convenience factor that is so appealing, being able to slip a SD card from the camera to the PC or Mac is just far too appealing these days Kind regards, Danepipesmoker www.iansforest.com |
#47
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Turning film cameras into digital cameras
In article ,
J. Clarke wrote: How was the release arranged on F3s with motor drives? Was there a separate release or did the regular release activate the motor? If the latter, that interface could probably be used for the sensor. The motor drive advances after the shutter release. You can use that signal to detect when the shutter has closed, but you also need a signal when the shutter is about to open. The motor drive doesn't need to know then the shutter opens, and the flash gets signaled when the shutter is open, instead of when the shutter is about to open. I don't know about the data back signals. -- That was it. Done. The faulty Monk was turned out into the desert where it could believe what it liked, including the idea that it had been hard done by. It was allowed to keep its horse, since horses were so cheap to make. -- Douglas Adams in Dirk Gently's Holistic Detective Agency |
#48
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Turning film cameras into digital cameras
Philip Homburg wrote:
In article , J. Clarke wrote: How was the release arranged on F3s with motor drives? Was there a separate release or did the regular release activate the motor? If the latter, that interface could probably be used for the sensor. The motor drive advances after the shutter release. You can use that signal to detect when the shutter has closed, but you also need a signal when the shutter is about to open. The motor drive doesn't need to know then the shutter opens, and the flash gets signaled when the shutter is open, instead of when the shutter is about to open. I don't know about the data back signals. My best guess is that the shutter release that is built into the DCS back triggers the back which then triggers the actual camera shutter and then the winder activates as on a normal motor-drive to recock the shutter. I could be wrong, though. |
#49
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Turning film cameras into digital cameras
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#50
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Turning film cameras into digital cameras
On Apr 6, 10:07 pm, "Pat" wrote:
On Apr 6, 10:28 pm, wrote: Let's for the moment we think "out of the box". If there is a product which has the shape of either a 35 mm or 120filmcartridge, and you can just load itintoyour oldfilmcamera. heavily edited, for brevity It's been done. The old Nikons had removeable backs. When things first went digitial, you would swap off the back and put on adigital back. Hello, Pat: The Nikon SLR "digital backs" were supplied by Kodak, however. Cordially, John Turco |
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