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#21
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[Mpix Challenge] Megapixel resolution challenge
Robert Coe wrote:
On Tue, 02 Dec 2008 18:38:30 -0500, Alan Browne wrote: : Film shooters are just as welcome to participate. : : See rule 1 b) para 2. I noticed that, and it puzzled me. How does the inclusion of film contribute in any way to answering the question that motivated the exercise? Which, I believe, was "Do you need more than 12 megapixels in a full-frame digital sensor?" An indirect relationship to be sure, but if somebody submitted such the comparison could be of interest. A 4000 dpi scan of a 35mm frame is about 21.5 Mpix. So comparable in pixel count. -- -- r.p.e.35mm user resource: http://www.aliasimages.com/rpe35mmur.htm -- r.p.d.slr-systems: http://www.aliasimages.com/rpdslrsysur.htm -- [SI] gallery & rulz: http://www.pbase.com/shootin -- e-meil: Remove FreeLunch. -- usenet posts from gmail.com and googlemail.com are filtered out. |
#22
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[Mpix Challenge] Megapixel resolution challenge
Alan Browne wrote:
Robert Coe wrote: On Tue, 02 Dec 2008 18:38:30 -0500, Alan Browne wrote: : Film shooters are just as welcome to participate. : : See rule 1 b) para 2. I noticed that, and it puzzled me. How does the inclusion of film contribute in any way to answering the question that motivated the exercise? Which, I believe, was "Do you need more than 12 megapixels in a full-frame digital sensor?" An indirect relationship to be sure, but if somebody submitted such the comparison could be of interest. A 4000 dpi scan of a 35mm frame is about 21.5 Mpix. So comparable in pixel count. Comparable in no of pixels, but not in quality - I've never seen a 4k scan showing any better pixel-level quality than about an 8Mp dslr equivalent (given nyquist/aliasing, etc). Surely you would need the proverbial (and rarely seen) *good* drum scan (and probably only from K25/Velvia/b&w) when you are getting into this territory..? Pushing past the extremes of 35mm format, imo, but it's interesting. |
#23
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[Mpix Challenge] Megapixel resolution challenge
Mark Thomas wrote:
Alan Browne wrote: Robert Coe wrote: On Tue, 02 Dec 2008 18:38:30 -0500, Alan Browne wrote: : Film shooters are just as welcome to participate. : : See rule 1 b) para 2. I noticed that, and it puzzled me. How does the inclusion of film contribute in any way to answering the question that motivated the exercise? Which, I believe, was "Do you need more than 12 megapixels in a full-frame digital sensor?" An indirect relationship to be sure, but if somebody submitted such the comparison could be of interest. A 4000 dpi scan of a 35mm frame is about 21.5 Mpix. So comparable in pixel count. Comparable in no of pixels, but not in quality - I've never seen a 4k scan showing any better pixel-level quality than about an 8Mp dslr equivalent (given nyquist/aliasing, etc). Surely you would need the proverbial (and rarely seen) *good* drum scan (and probably only from K25/Velvia/b&w) when you are getting into this territory..? Regardless, good to document. It really does depend on the quality of the image taken to get the best possible scan. I was tempted to buy the wet kit for my 9000ED which reduces grain noise and improves contrast (like a drum scan), but at $500 plus consumables it was getting a bit insane. -- -- r.p.e.35mm user resource: http://www.aliasimages.com/rpe35mmur.htm -- r.p.d.slr-systems: http://www.aliasimages.com/rpdslrsysur.htm -- [SI] gallery & rulz: http://www.pbase.com/shootin -- e-meil: Remove FreeLunch. -- usenet posts from gmail.com and googlemail.com are filtered out. |
#24
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[Mpix Challenge] Megapixel resolution challenge
Alan Browne wrote:
Mark Thomas wrote: Alan Browne wrote: Robert Coe wrote: On Tue, 02 Dec 2008 18:38:30 -0500, Alan Browne wrote: : Film shooters are just as welcome to participate. : : See rule 1 b) para 2. I noticed that, and it puzzled me. How does the inclusion of film contribute in any way to answering the question that motivated the exercise? Which, I believe, was "Do you need more than 12 megapixels in a full-frame digital sensor?" An indirect relationship to be sure, but if somebody submitted such the comparison could be of interest. A 4000 dpi scan of a 35mm frame is about 21.5 Mpix. So comparable in pixel count. Comparable in no of pixels, but not in quality - I've never seen a 4k scan showing any better pixel-level quality than about an 8Mp dslr equivalent (given nyquist/aliasing, etc). Surely you would need the proverbial (and rarely seen) *good* drum scan (and probably only from K25/Velvia/b&w) when you are getting into this territory..? Regardless, good to document. It really does depend on the quality of the image taken to get the best possible scan. I was tempted to buy the wet kit for my 9000ED which reduces grain noise and improves contrast (like a drum scan), but at $500 plus consumables it was getting a bit insane. I can understand that.. I would have to admit that I used to do a lot of K25 work, but.. (blush) there's probably only ten or so of them that might justify a drum scan.. For the rest, 2.7/4K suffices. (O: And none of those few good'uns are of a newspaper, so I won't be contributing, sorry. But I shall watch with interest - I hope you get a few bites. I wonder if Rafe Bustin/Jim Davis are still around - remember this? http://www.terrapinphoto.com/jmdavis/ I was a bit unimpressed by most of the drum scans on that page, however - it's a black art and very few folk seem to know how to do it well (or maybe the source images/films just aren't up to it). |
#25
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[Mpix Challenge] Megapixel resolution challenge
Mark Thomas wrote:
I can understand that.. I would have to admit that I used to do a lot of K25 work, but.. (blush) there's probably only ten or so of them that might justify a drum scan.. For the rest, 2.7/4K suffices. (O: While we all shoot for quality we rarely shoot for extreme quantitative quality. And none of those few good'uns are of a newspaper, so I won't be contributing, sorry. But I shall watch with interest - I hope you get a few bites. Only one so far that I know of (and film at that), plus me. Methinks the Nikon 12 Mpix FF shooters have had time to reflect on this and don't want to see the truth. Especially when their sole recourse is a few months away and $8K. Once a D3X gets into these NG wildernesses you can be sure that highest resolution will take on new respect... Or it will have to wait 6 - 12 months before Nikon do the same in a body like the D700. -- -- r.p.e.35mm user resource: http://www.aliasimages.com/rpe35mmur.htm -- r.p.d.slr-systems: http://www.aliasimages.com/rpdslrsysur.htm -- [SI] gallery & rulz: http://www.pbase.com/shootin -- e-meil: Remove FreeLunch. -- usenet posts from gmail.com and googlemail.com are filtered out. |
#26
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[Mpix Challenge] Megapixel resolution challenge
On Fri, 05 Dec 2008 17:32:59 -0500, Alan Browne wrote:
Methinks the Nikon 12 Mpix FF shooters have had time to reflect on this and don't want to see the truth. Especially when their sole recourse is a few months away and $8K. Once a D3X gets into these NG wildernesses you can be sure that highest resolution will take on new respect... Or it will have to wait 6 - 12 months before Nikon do the same in a body like the D700. Wow, I'm not surprised to see that your "friendly challenge" has you gloating, but whining at the same time? What the world doesn't need are fanboys with inferiority complexes. |
#27
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The Nikon D3X is a new factor in the discusssion:
http://imaging.nikon.com/products/im.../d3x/index.htm Quote:
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#28
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[Mpix Challenge] Megapixel resolution challenge
Harold Gough wrote:
slashed Don't top post. Snip preceding post for relevance. |
#29
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[Mpix Challenge] Target issue
Alan Browne wrote:
This is the issue (6 Dec) of The Economist to get for the Mpix Challenge. Should be on newsstands by Sun/Mon. http://www.economist.com/printeditio...uecovUS400.jpg or http://tinyurl.com/5z6fud Reference page to be announced. -- -- r.p.e.35mm user resource: http://www.aliasimages.com/rpe35mmur.htm -- r.p.d.slr-systems: http://www.aliasimages.com/rpdslrsysur.htm -- [SI] gallery & rulz: http://www.pbase.com/shootin -- e-meil: Remove FreeLunch. -- usenet posts from gmail.com and googlemail.com are filtered out. |
#30
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[Mpix Challenge] Megapixel resolution challenge
Alan Browne wrote:
Mark Thomas wrote: I can understand that.. I would have to admit that I used to do a lot of K25 work, but.. (blush) there's probably only ten or so of them that might justify a drum scan.. For the rest, 2.7/4K suffices. (O: While we all shoot for quality we rarely shoot for extreme quantitative quality. And none of those few good'uns are of a newspaper, so I won't be contributing, sorry. But I shall watch with interest - I hope you get a few bites. Only one so far that I know of (and film at that), plus me. Methinks the Nikon 12 Mpix FF shooters have had time to reflect on this and don't want to see the truth. Especially when their sole recourse is a few months away and $8K. I don't expect to win so didn't submit :-( and don't plan to upgrade any time soon. Once a D3X gets into these NG wildernesses you can be sure that highest resolution will take on new respect... Or it will have to wait 6 - 12 months before Nikon do the same in a body like the D700. -- Paul Furman www.edgehill.net www.baynatives.com all google groups messages filtered due to spam |
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