Approve the Cookies
This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and our Privacy Policy.
OK
Forums  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear
Guest
Forums  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear
Register to forums    Log in

 
FORUMS Cameras, Lenses & Accessories Canon Digital Cameras 
Thread started 19 Mar 2011 (Saturday) 10:52
Search threadPrev/next
sponsored links (only for non-logged)

Why we need more pixels

 
RDKirk
Adorama says I'm "packed."
Avatar
14,373 posts
Gallery: 3 photos
Likes: 1378
Joined May 2004
Location: USA
     
Mar 19, 2011 10:52 |  #1

An interesting article on Luminous-Landscape:
http://www.luminous-landscape.com/essays/n​ot-so-fast.shtml (external link)

A second reason for more resolution, ironically, is that most lenses are not diffraction limited – they are much worse. The diffraction limit is the best you can do, but most real lenses are worse and have distortion and aberrations, such as coma, chromatic aberration and others. These problems can to some extent be corrected in software – simple versions of this exist in DXO, Camera Raw and other programs today. However all of those adjustments in effect cost you resolution – or conversely you can do a better job with higher resolution sampling. One of the best things you can do with a 100 mp sensor is use it to create a much better 50mp or 25mp image through intelligent down sampling.

One of the points the author makes is that there are many image-enhancing techniques that can be applied through software to correct a multitude of lens faults...but they all carry a "cost" in sensor resolution. Thus, having a surplus of sensor resolution is an overall benefit.


TANSTAAFL--The Only Unbreakable Rule in Photography

  
  LOG IN TO REPLY
adamo99
Goldmember
1,173 posts
Gallery: 6 photos
Likes: 44
Joined Mar 2007
Location: Mississauga, ON
     
Mar 19, 2011 11:01 |  #2

I don't print 6x8 foot posters, so I'd be happy if the manufacturers stopped the megapixel race, and concentrated solely on DR and ISO performance.




  
  LOG IN TO REPLY
RDKirk
THREAD ­ STARTER
Adorama says I'm "packed."
Avatar
14,373 posts
Gallery: 3 photos
Likes: 1378
Joined May 2004
Location: USA
     
Mar 19, 2011 11:03 |  #3

adamo99 wrote in post #12049805 (external link)
I don't print 6x8 foot posters, so I'd be happy if the manufacturers stopped the megapixel race, and concentrated solely on DR and ISO performance.

I guess you didn't read the article. Improvements in DR and ISO can come through more pixels.


TANSTAAFL--The Only Unbreakable Rule in Photography

  
  LOG IN TO REPLY
tonylong
...winded
Avatar
54,657 posts
Gallery: 60 photos
Likes: 571
Joined Sep 2007
Location: Vancouver, WA USA
     
Mar 19, 2011 16:28 |  #4

He makes some interesting points!

I'd be curious to see how the science of binning proceeds. At this point I haven't seen any evidence that the sRaw/mRaw output gives an increase in image quality, but I'd like to see some "smart binning" technology that could, for example, implement CA/fringing corrections or noise reductions in a way that could, say, deliver a cleaner Raw 25MP file from a 50MP sensor -- that could be pretty enticing!


Tony
Two Canon cameras (5DC, 30D), three Canon lenses (24-105, 100-400, 100mm macro)
Tony Long Photos on PBase (external link)
Wildlife project pics here (external link), Biking Photog shoots here (external link), "Suburbia" project here (external link)! Mount St. Helens, Mount Hood pics here (external link)

  
  LOG IN TO REPLY
artyman
Sleepless in Hampshire
Avatar
14,422 posts
Gallery: 17 photos
Likes: 88
Joined Feb 2009
Location: Hampshire UK
     
Mar 19, 2011 17:06 |  #5

I already have smart binnning, ............... if it's no good it gets binned :D


Art that takes you there. http://www.artyman.co.​uk (external link)
Ken
Canon 7D, 350D, 15-85, 18-55, 75-300, Cosina 100 Macro, Sigma 120-300

  
  LOG IN TO REPLY
RobDickinson
Goldmember
4,003 posts
Gallery: 14 photos
Best ofs: 4
Likes: 1053
Joined Apr 2010
Location: New Zealand
     
Mar 19, 2011 17:10 |  #6

adamo99 wrote in post #12049805 (external link)
I don't print 6x8 foot posters, so I'd be happy if the manufacturers stopped the megapixel race, and concentrated solely on DR and ISO performance.

People seem to think those goals are mutualy exclusive.

DR and ISO perfomance are pretty much down to sensor area and tech, splitting thta up into whatever numberof pixels is just slicing the same pie a different way


www.HeroWorkshops.com (external link) - www.rjd.co.nz (external link) - www.zarphag.com (external link)
Gear: A7r, 6D, Irix 15mmf2.4 , canon 16-35f4L, Canon 24mm TS-E f3.5 mk2, Sigma 50mm art, 70-200f2.8L, 400L. Lee filters, iOptron IPano, Emotimo TB3, Markins, Feisol, Novoflex, Sirui. etc.

  
  LOG IN TO REPLY
Hogloff
Cream of the Crop
7,606 posts
Likes: 416
Joined Apr 2003
Location: British Columbia
     
Mar 19, 2011 19:21 |  #7
bannedPermanent ban

RobDickinson wrote in post #12051740 (external link)
People seem to think those goals are mutualy exclusive.

DR and ISO perfomance are pretty much down to sensor area and tech, splitting thta up into whatever numberof pixels is just slicing the same pie a different way

Yep, we've seen an improvement in iso performance right along with high pixel numbers. Nothing wrong with wanting more of both.




  
  LOG IN TO REPLY
stevewf1
Senior Member
Avatar
830 posts
Likes: 247
Joined Sep 2010
Location: Indianapolis
     
Mar 19, 2011 20:01 |  #8

Why is 35mm full frame still considered the "standard"? Back in the film days, 35mm was considered a small format. A format for amateurs.

Granted, a camera with a sensor say, twice as big, would result in larger cameras and lenses, but from the way 7D owners sneer at my little "toy" T2i, it seems that a lot of folks would jump at much larger gear...


Steve

  
  LOG IN TO REPLY
tonylong
...winded
Avatar
54,657 posts
Gallery: 60 photos
Likes: 571
Joined Sep 2007
Location: Vancouver, WA USA
     
Mar 19, 2011 22:17 |  #9

stevewf1 wrote in post #12052623 (external link)
Why is 35mm full frame still considered the "standard"? Back in the film days, 35mm was considered a small format. A format for amateurs.

Granted, a camera with a sensor say, twice as big, would result in larger cameras and lenses, but from the way 7D owners sneer at my little "toy" T2i, it seems that a lot of folks would jump at much larger gear...

Well, medium format is out there, has been out there for some time, and benefits frome the resolution gains as do DSLRs. If you read the article, 100MP MF bodies are in circulation, but the point was made that it is at a real price!

There will always be the APS-C bodies and the 35mm-format "full frame" bodies available at a far lower price (and size) that will handle our DSLR lens/systems so there's nothing wrong with speculating about the potential advantages of higher resolutions as long as Moore's Law stays in effect.

As I mentioned above, I think the concept of "smart binning" is a pretty cool thing to target in the engineering of upcoming generations.


Tony
Two Canon cameras (5DC, 30D), three Canon lenses (24-105, 100-400, 100mm macro)
Tony Long Photos on PBase (external link)
Wildlife project pics here (external link), Biking Photog shoots here (external link), "Suburbia" project here (external link)! Mount St. Helens, Mount Hood pics here (external link)

  
  LOG IN TO REPLY
wec12
Senior Member
Avatar
349 posts
Likes: 168
Joined Jan 2009
Location: Pittsburgh, PA
     
Mar 20, 2011 08:44 as a reply to  @ tonylong's post |  #10

Interesting point of view. Thanks for sharing.


Mr.Dissector Photography (external link)

  
  LOG IN TO REPLY
RDKirk
THREAD ­ STARTER
Adorama says I'm "packed."
Avatar
14,373 posts
Gallery: 3 photos
Likes: 1378
Joined May 2004
Location: USA
     
Mar 20, 2011 09:01 |  #11

stevewf1 wrote in post #12052623 (external link)
Why is 35mm full frame still considered the "standard"? Back in the film days, 35mm was considered a small format. A format for amateurs.

Not exactly a "format for amateurs," but a format with specific applications. Professional PJs were using 35mm by the '30s, and by the early 60s, no major newspapers or magazines were requiring medium format.

National Geographic started publishing 35mm Kodachrome in the '30s as well, and nobody was producing better color plates than they. Up until the 80s, Kodak had a permanent display in Grand Central Station that showcased 35mm Kodachrome backlighted transparent images enlarged to something like 30x50 feet. Those were all professional photographers.

You certainly didn't see any medium format cameras at any NFL or AFL games from the 60s on. Boxing was perhaps the last sport in which medium format was still competitive, but it was gone even ringside by the 70s. Those were professional photographers.

How many medium format camera did you see during the Vietnam War? None. How many amateur photographers were shooting the Vietnam War? None.

By the late 60s, Kodachrome had certainly proven its ability to match medium format Ektachrome in quality even for commercial photography. Medium format hung on in the commercial area primarily because art directors preferred to view it on light tables and contact sheets without needing loupes. But nobody could question the results people like Pete Turner were getting out of their Nikons.

1950 - The company unveiled the first in its long-running series of KODAK COLORAMA Display transparencies - 18 feet high and 60 feet wide - overlooking the main terminal floor of Grand Central Station in New York City. An estimated 650,000 commuters and tourists viewed this popular attraction every business day, and many of the dramatic photographs displayed over the years were the subject of widespread newspaper and magazine coverage. The exhibit was permanently dismantled in early 1989 as part of Grand Central's restoration.

http://www.kodak.com …historyOfKodak/​1930.jhtml (external link)


TANSTAAFL--The Only Unbreakable Rule in Photography

  
  LOG IN TO REPLY
hollis_f
Cream of the Crop
Avatar
10,649 posts
Gallery: 1 photo
Likes: 85
Joined Jul 2007
Location: Sussex, UK
     
Mar 20, 2011 12:39 |  #12

stevewf1 wrote in post #12052623 (external link)
Why is 35mm full frame still considered the "standard"?

35mm?

Oh, you mean 0.625 crop cameras!

Well, I'm sure APS-C outnumbers 'full-frame' so it should be the new standard.


Frank Hollis - Retired mass spectroscopist
Give a man a fish and he'll eat for a day. Teach a man to fish and he'll complain about the withdrawal of his free fish entitlement.
Gear Website (external link)

  
  LOG IN TO REPLY
SaxonIV
Senior Member
Avatar
768 posts
Joined Sep 2010
Location: Alabama
     
Mar 20, 2011 17:09 |  #13

RDKirk wrote in post #12055143 (external link)
How many amateur photographers were shooting the Vietnam War? None.


http://www.kodak.com …historyOfKodak/​1930.jhtml (external link)

what does that even mean? This just made me doubt any of your other points...

my Friends dad has an entire box of slides from the vietnam war...




  
  LOG IN TO REPLY
quiksquirrel
Senior Member
608 posts
Likes: 9
Joined Mar 2011
Location: Denmark
     
Mar 20, 2011 17:34 |  #14

Instead of constantly focusing on pixels in our DSLR's, I really wish that manufactures would work on bringing down the prices of digital MF.
I honestly believe that the market is ready for semi-pro MF gear, in a price range of $5000-10000,-

If super high resolution is the goal, MF is the platform.

With DSLR's, what I want to see, is better dynamic range, better high ISO performance and generally better use of the pixels we already have.




  
  LOG IN TO REPLY
RDKirk
THREAD ­ STARTER
Adorama says I'm "packed."
Avatar
14,373 posts
Gallery: 3 photos
Likes: 1378
Joined May 2004
Location: USA
     
Mar 20, 2011 18:45 |  #15

SaxonIV wrote in post #12057704 (external link)
what does that even mean? This just made me doubt any of your other points...

my Friends dad has an entire box of slides from the vietnam war...

Was he there on his dime or the government's?

Yes, okay, I'll give you that point. My father has personal photos from both the Vietnam War and the Korean War. However, he did not go either to Vietnam or Korea for the purpose of taking photos as an amateur, he went for the purpose of killing people.

My point was that the professionals PJs shooting the Vietnam War were using 35mm cameras, so the format is not an "amateur's format." If you don't believe that, it's easy enough to Goggle it.


TANSTAAFL--The Only Unbreakable Rule in Photography

  
  LOG IN TO REPLY
sponsored links (only for non-logged)

3,048 views & 0 likes for this thread, 12 members have posted to it.
Why we need more pixels
FORUMS Cameras, Lenses & Accessories Canon Digital Cameras 
AAA
x 1600
y 1600

Jump to forum...   •  Rules   •  Forums   •  New posts   •  RTAT   •  'Best of'   •  Gallery   •  Gear   •  Reviews   •  Member list   •  Polls   •  Image rules   •  Search   •  Password reset   •  Home

Not a member yet?
Register to forums
Registered members may log in to forums and access all the features: full search, image upload, follow forums, own gear list and ratings, likes, more forums, private messaging, thread follow, notifications, own gallery, all settings, view hosted photos, own reviews, see more and do more... and all is free. Don't be a stranger - register now and start posting!


COOKIES DISCLAIMER: This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and to our privacy policy.
Privacy policy and cookie usage info.


POWERED BY AMASS forum software 2.58forum software
version 2.58 /
code and design
by Pekka Saarinen ©
for photography-on-the.net

Latest registered member is semonsters
1451 guests, 128 members online
Simultaneous users record so far is 15,144, that happened on Nov 22, 2018

Photography-on-the.net Digital Photography Forums is the website for photographers and all who love great photos, camera and post processing techniques, gear talk, discussion and sharing. Professionals, hobbyists, newbies and those who don't even own a camera -- all are welcome regardless of skill, favourite brand, gear, gender or age. Registering and usage is free.