4:3 Image Resolution, and the Future of D
I was reading in a digital photo forum on a computer forum briefly about an attempt by Kodak, and Olympas in regards to a new 4:3 image ration being develped by Kodak and Olympas to form a new standard for all digital cameras to run under reffered to as 4:3. Has anyone heard much about this? From what I gathered, it would require an entirely new lens design stating that the largest restriction to DSLR tech curently is the throw back to the 35mm lens system used, and not the current magnifying factor (or crop factor depending on your use of the term)
Dashi, if you get a chance to, could you post the link on here to the articles you showed me the other day in the lab?
But from the sounds of it, if Nikon, Canon, Minolta, Pentax, or anyone else were to adopt this new stanard, those of us complaining already about he G series will have a lot more to complain about as according to the Kodak research, backwards compatitbility will not even exist leaving those of us using anything Nikkor out to pasture, and the expsevie D series as nothing more as a remnent of a costly error in design.
Anyone, know anything about the 4:3 yet? (I'm looking at you Scott, and you Victor )
Aaron J. Heiner
Team Coast Guard Photographer
US Department of Homeland Security
#1. "RE: 4:3 Image Resolution, and the Future of D" | In response to Reply # 0Seb Basic MemberThu 24-Oct-02 01:23 PM
From what I understand, it is not a 4:3 ratio they're going for, but the 4/3 sensor size. If you need an explenation of that, dpreview.com has a good article on it. The sizes go back to early production dates of CCD-based video cameras. Basically, they want to use a new, standard SENSOR size to bring down the size of camera bodies and lenses, to make them lighter and more compact. I am unsure of the ratio of the final image, but changing that is not the purpose of the 4/3 standard.
Yes, the lenses would be incompatible, since you would have a new sensor size, new camera bodies, new lens mounts,everything would be new, hence the new standard.
Hope that clears it up somewhat.
#2. "RE: 4:3 Image Resolution, and the Future of D" | In response to Reply # 0daishi Registered since 09th Oct 2002Thu 24-Oct-02 04:26 PM
is the link for the news article about 4/3 on dpreview
my guess is the new system is prolly going to be in the consumer area since consumers would welcome the reduction in weight and size. I can't see pros being very welcoming of a new lens mount system that would make their existing lenses next to useless
nikon, canon, and minolta have said nothing about the 4/3 system so I don't know if they are even considering it. They might be just so they can force people to upgrade to a new system
Date: May 7 2003
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#3. "RE: 4:3 Image Resolution, and the Future of D" | In response to Reply # 0BJNicholls Charter MemberThu 24-Oct-02 06:28 PM
4/3 has no dimensional meaning except that is was an old standard for Vidicon tube cameras. It doesn't relate to any of the 4/3 imaging chip dimensions, which in the Olydak standard have 22.5 mm diagonal. "Four-thirds" relates to the calculation Vidicon engineers used to specify an image circle necessary to cover the chip size Oly-dak is now wanting to standardize.
"Throwback" is in the eye of the beholder. The 4/3 imaging size is a decades-old throwback to early video camera technology. The aspect ratio of the proposed chip is accidentally also 4:3, a ratio that doesn't work without cropping for standard print sizes and thousands of other products designed for traditional 4x5 and 2x3 film aspect ratios.
The theoretical merit of a small imaging chip standard is creating compact cameras and lenses. The same kind of benefit that small film sizes like APS and its predecessors were supposed to offer. Since there isn't even a functional prototype of an Olydak 4/3 camera, it will be a while before we can see if third parties and camera makers produce products for the standard. The Olympus non-functional mockup didn't appear to be any more compact than a D100 body. I'm sure they can do better, but how much market share will their compact system really draw, especially with the long wait for a complete system to be fleshed out?
There is an absolute limit on resolution for the proposed chip size. Even superb lenses are not much better in resolution limits than current sensor densities. There probably won't be a useful 12 megapixel chip for a 4/3 camera, so if you need more you'll need a larger sensor and system to support it. Will pros flock to a limited resolution camera given other alternatives? Unless they do, we all know that most advanced amateurs put a lot of weight into buying the systems that pros use.
There are rumors now of Nikon coming out with its own small sensor digital system camera without having the 4/3 mount. Olympus may be very optimistic that their open standard would be attractive to companies that have competed with their own proprietary lens mounts and systems for decades.
It's way to early to see if this tree will bear fruit. Let's see what Olympus can cough up this spring before worrying about the implications of 4/3. If they don't have something impressive to show, I'd expect the standard to die of too little, too late.
#4. "RE: 4:3 Image Resolution, and the Future of D" | In response to Reply # 3lordnikon Registered since 17th Feb 2002Fri 25-Oct-02 01:26 PM
Thakns, BJ, I knew if anyone would know the four thirds it would be you That was the info I was looking for.
Aaron J. Heiner
Team Coast Guard Photographer
US Department of Homeland Security
#5. "RE: 4:3 Image Resolution, and the Future of D" | In response to Reply # 4sagittarius Registered since 18th Aug 2002Fri 25-Oct-02 06:54 PM
The 4:3 standard announcement was very confusing because of the absence of meaningful informantion from Olympus of Kodak. First there was a news piece from Oly calling it a 4/3 inch standard. There is no 4/3 inch in the dimensions of the sensor so the most logical thing to assume was that it is a "4/3 type", which I think is the old stadard BJ mentioned in his reply. This deisgnation of "sensor type" is indeed still used with modern sensors. At that time I did not know about sensor type so I was convinced it was the aspect ratio. But again, in an interview with Oly US they said it refers to the aspect ratio, which is quite strange since they said they are going to fix the sensor size (the new spec is not built around an aspect ratio then!).I will post a link to the interview below. I got the impression there is not much communication going between Oly Japan and its branches. The spec is not fully developed yet and Kodak's "aggressive implementation" of the new system was to anounce the world's highest res 36*24 sensor! But anyway we know they had to do that. The main points about the spec is to produce high resolving lenses for the reasons BJ described, to reduce the angle of incidence of light at the edges of the sensor chip(a large angle of incidence affects senstivity and causes vignetting: an engineering difficulty with larger sensors) and to have a standard lens mount (let us see how Canon and Nikon will react to that). How the system will work is still to be seen. Currently, besides Oly and Kodak, only Fuji officially showed interest in the standard. Pentax anounced a new line of Slr's based on small sensor size but did not say if they will take part in the Olydak standard or not. How these companies will implement the standard in their products is unknown. How attractive the products are going to be compared with 36*24 sensor camers is still to be seen. Is the small sensor going to be the digital 35 mm equivalent of its day the 36*24 ones the replacement for medium format? The confusion that accompanied the announcement did not leave a good impression. I am only excited about the standard lens mount idea. I hope it succeeds. It could convice the bigger companies to work harder to keep their consumers.