4/3 Pixel Efficiency VS Standard Format Cameras
/forum/topic/1065073/0



Texsport
Registered: Nov 03, 2011
Total Posts: 21
Country: United States

Since 4/3 cameras are formatted to match computer screens, T V screens, and even standard photo enlargement formats(8x10,etc), is it correct to say that 4/3 cameras utilize all the pixels they record/capture, while full format film and digital 35mm cameras, formatted at 3:2 actually discard and therefore waste recorded data?

If I'm correct, by my calculations, a full format 35mm camera discards 1/6, or 16.7% of its pixels whenever you display the pictures on the internet or print at standard sizes.(4X6,8X10, etc).

So an 18.1M pixel camera,for example, actually discards slightly more than 3 pixels, making it in effect a 15.1M pixel image.

If true, this brings 4/3 cameras like the Olympus 4/3, with 12.3M pixels, much closer to the big boys than first thought.

Please educate me. Thanks in advance.

Texsport



h00ligan
Registered: Jan 03, 2010
Total Posts: 2157
Country: United States

Just a niggle,

Internet display doesn't mandate any sort of aspect ratio, and you can print howevand matte...but I see what you're saying and will be interested as well

As far as standard print sizes... 3:2 aspect ratio...

4x6
8x12
12x18
20x30

These are not uncommon.



Makten
Registered: Jul 14, 2008
Total Posts: 4044
Country: Sweden

Modern screens are often 16:9 ratio, so that would throw it the other way around. But how often do you find images at full resolution on the web? They are mostly very much smaller than any computer screen.
As for printing, you are right if you will be printing at the maximum size that the printer allows. But then of course pixel count doesn't say very much about sharpness or even real resolution. At smaller sizes, just print on a larger paper and crop the empty borders instead.

Edit: I think I just brainfarted with the printing. It depends on what direction the paper goes in the printer.



Texsport
Registered: Nov 03, 2011
Total Posts: 21
Country: United States

h00ligan wrote:
Just a niggle,

Internet display doesn't mandate any sort of aspect ratio, and you can print howevand matte...but I see what you're saying and will be interested as well

As far as standard print sizes... 3:2 aspect ratio...

4x6
8x12
12x18
20x30

These are not uncommon.




Agreed, and I almost always print 8X12 instead of 8X10 from my MF cameras.

But the drug store prints 8X10 and can't do 8X12.

Thanks for the insights everyone. I'm mostly interested in printing and got out of my element with internet and TV discussions.

Texsport



h00ligan
Registered: Jan 03, 2010
Total Posts: 2157
Country: United States

Costco prints 8x12 fwiw.



billsnature
Registered: Dec 10, 2004
Total Posts: 1384
Country: United States

In buying precut mats 8x10 ans 11x14 are much more available than 8x12 or 12x18



Texsport
Registered: Nov 03, 2011
Total Posts: 21
Country: United States

h00ligan wrote:
Costco prints 8x12 fwiw.



Good info.

I have a brand new Epson 4900 and lots of paper.

Texsport



Bernie
Registered: Aug 24, 2002
Total Posts: 4129
Country: United States

And

americanframe.com

and others can give you custom size matting and frames with competitve pricing compared to the craft stores with better quality.



Texsport
Registered: Nov 03, 2011
Total Posts: 21
Country: United States

Bernie wrote:
And

americanframe.com

and others can give you custom size matting and frames with competitve pricing compared to the craft stores with better quality.



Thanks---I needed that---a lot!


texsport



eSchwab
Registered: Dec 26, 2007
Total Posts: 2459
Country: United States

h00ligan wrote:
Just a niggle,

Internet display doesn't mandate any sort of aspect ratio, and you can print howevand matte...but I see what you're saying and will be interested as well

As far as standard print sizes... 3:2 aspect ratio...

4x6
8x12
12x18
20x30

These are not uncommon.


Have you ever tried to find a frame for an 8x12 or 12x18? Short of paying to have one custom made there aren't many options. I say this because I actually hate that aspect ratio, I prefer 3:2 or square.



Texsport
Registered: Nov 03, 2011
Total Posts: 21
Country: United States

eSchwab wrote:
h00ligan wrote:
Just a niggle,

Internet display doesn't mandate any sort of aspect ratio, and you can print howevand matte...but I see what you're saying and will be interested as well

As far as standard print sizes... 3:2 aspect ratio...

4x6
8x12
12x18
20x30

These are not uncommon.


Have you ever tried to find a frame for an 8x12 or 12x18? Short of paying to have one custom made there aren't many options. I say this because I actually hate that aspect ratio, I prefer 3:2 or square.



Texsport
Registered: Nov 03, 2011
Total Posts: 21
Country: United States

Yes, I have a source for larger, irregular frames.Lots of suppliers actually--just Google it.

I print 8X12 frequently to preserve the 6X9 negatives I shoot for landscapes and occupational portraits. Been shooting close up portraits in landscape format with an Auto Up attachment for my Fujica 690 100AE. It allows me to get within a couple of feet of my subject and I often overflow the edges of an 8X10 format.

Texsport



Zaitz
Registered: Mar 18, 2009
Total Posts: 1215
Country: United States

eSchwab wrote:
h00ligan wrote:
Just a niggle,

Internet display doesn't mandate any sort of aspect ratio, and you can print howevand matte...but I see what you're saying and will be interested as well

As far as standard print sizes... 3:2 aspect ratio...

4x6
8x12
12x18
20x30

These are not uncommon.


Have you ever tried to find a frame for an 8x12 or 12x18? Short of paying to have one custom made there aren't many options. I say this because I actually hate that aspect ratio, I prefer 3:2 or square.

Documounts - custom cut mat sizes $1 each order 20. Custom size frame down to 1/16" for $28.