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dcmiller Registered: May 21, 2002 Total Posts: 2982 Country: United States |
I tried to discuss the issue of HOW low noise is achieved in the D3 thread. But bringing up that topic killed the buzz of those giggling with excitement over Nikon's new camera. I'll try again here. I do have a mkIII on order, and a little bit of buyers remorse since the D3 announcement. |
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jcbenner Registered: Apr 27, 2005 Total Posts: 347 Country: United States |
I'm really happy so many here seem unhappy with the 1Ds3 specs and consider it to not be worth the upgrade from the 1Ds2, as that is fewer pre-orders to compete with to get this camera ;-) |
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Paul Gardner Registered: Sep 16, 2004 Total Posts: 620 Country: United States |
Too bad Pentax does not have the sensor technology to go with their 22 bit A/D. They are a sleeper that will some day get a sensor and then will kick both Nikon and Canon in the slats. I've never been a Pentax fan, but they are doing the preliminary work now while they await a sensor. Which gives me hope that they may be the one to push both N & C to release the technology they are holding back on. |
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dcmiller Registered: May 21, 2002 Total Posts: 2982 Country: United States |
jcbenner wrote: |
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dcmiller Registered: May 21, 2002 Total Posts: 2982 Country: United States |
StevenPalowsky wrote: |
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dcmiller Registered: May 21, 2002 Total Posts: 2982 Country: United States |
Paul Gardner wrote: |
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Paul Gardner Registered: Sep 16, 2004 Total Posts: 620 Country: United States |
Low noise amp design is well understood and the technology is well in hand. I would suggest that interested persons look at the A/D technology info that is online . I designed with 16 bit A/Ds well over 30 years ago. I suspect that Pentax is getting its learning curve up to speed in anticipation of someday having a sensor to make use of the technology it already has in place. Bottom line is that A/Ds are so cheap that it doesen't make sense not to use them. |
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dcmiller Registered: May 21, 2002 Total Posts: 2982 Country: United States |
Exactly my point, the A/Ds are cheap and not a highly differentiated component. Putting 21 million photodiodes on a chip, each with their own amplifier, is a bit tricky. |
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Paul Gardner Registered: Sep 16, 2004 Total Posts: 620 Country: United States |
Who prints in 8 bits? Certinaly not I. I send my 75 Mb 16 bit tifs to a service which prints them at 16 bits on a $75000.00 lightjet printer. Granted not cheap. Approx $110.00 for a 24X36. Both of my film scanners are 48 bit. Not cheap either, but the files are beautiful. You should get what you pay for, and you would not buy a model T at the same price as a corvette, which is what N & C are asking you to do. If Ford charged a escort at the same markup as Canon you would pay over $100,000 for it. In closing, I will say that Canon does make the best 35mm digital, but they are only doing the minimum to stay ahead of the compitition so they can continue to overcharge. They could do much better if they wished. |
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jcbenner Registered: Apr 27, 2005 Total Posts: 347 Country: United States |
Paul Gardner wrote: |
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The Image Registered: Dec 04, 2004 Total Posts: 2623 Country: United States |
Paul Gardner wrote: |
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keith_cooper Registered: Apr 30, 2005 Total Posts: 145 Country: United Kingdom |
Thomas McConville wrote: |
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jcbenner Registered: Apr 27, 2005 Total Posts: 347 Country: United States |
Thomas McConville wrote: |
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pascal03 Registered: Jan 21, 2005 Total Posts: 3331 Country: United States |
Seems like canon has heard out it's consumers and delivered (5fps, 14 bit, 21MP upgraded sensor, larger LCD, anti-dust, etc.) and people are still unhappy with the product (before they have had a chance to use it |
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ACElkins Registered: Nov 12, 2005 Total Posts: 359 Country: United States |
pascal03 wrote: |
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stanj Registered: Aug 05, 2003 Total Posts: 4534 Country: United States |
pascal03 wrote: I am curious as to how many who have replied to this thread actually intend to buy the body and how many are only posting opinions. I don't see myself spending $8k on the new 1Ds body. However, I do myself getting a 1Ds Mk II for a decent price. |
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Paul Gardner Registered: Sep 16, 2004 Total Posts: 620 Country: United States |
http://www.engadget.com/2007/06/04/canon-crams-50-megapixels-into-a-cmos-prototype/ |
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cvumd Registered: Oct 27, 2005 Total Posts: 418 Country: United States |
I just stick with my 1ds2, since there's not a whole lot difference for the upgrade, and the ds3 has some AF problem as well. I'd buy it if it was 6k, 8k? way overpriced |
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sixspeed24 Registered: Aug 10, 2005 Total Posts: 90 Country: United States |
I have a question for those of you that know more than me,...I keep reading where megapixels don't matter so much as sensor size, and was wondering, that if this is true, then why are they putting out a 21.1 megapixel sensor, if the 16.7 meg sensor is the same size, and all they are doing is just cramming all this into smaller units on the same sensor. Does anyone know the real story here? I would tend to believe that more megapixels does make a difference, but I would like to hear from some of you that are more knowledgeable on this than me. The reason that I am asking, is that I have been planning on upgrading from my 20D to a 1ds Mark III next year. |
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Paul Gardner Registered: Sep 16, 2004 Total Posts: 620 Country: United States |
This is an explantion of sensors. The improvements seem to occur with the closer spacing provided by improving the microlenses so that the cells receive less light splatter. Larger cells produce more photon capture which is why a lot of pros use MF cameras such as Phase1. |
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sixspeed24 Registered: Aug 10, 2005 Total Posts: 90 Country: United States |
Thanks for this link,...I will read up on this. |
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Paul Gardner Registered: Sep 16, 2004 Total Posts: 620 Country: United States |
Here is a whitepaper that explains the sensor and microlenses. Look down about 1/2 way. |
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sixspeed24 Registered: Aug 10, 2005 Total Posts: 90 Country: United States |
Thanks Paul! The other link was great,...I will read this one too. |
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sixspeed24 Registered: Aug 10, 2005 Total Posts: 90 Country: United States |
Wow, both great information, thanks for sending these! |
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Paul Gardner Registered: Sep 16, 2004 Total Posts: 620 Country: United States |
Hopefully the 12/14/16 bit augument is over also. Here is what Canon has to say. (markering hype on) |