ben egbert wrote: gdanmitchell wrote: atodzia wrote:
Thanks Hatch. One thing I have noticed is that after looking at a few shots I have taken full size in Photoshop, since receiving the camera yesterday, it is a little of a let down after they are downsized to web posting jpeg size and don\'t have quite the same impact At least on my 27 inch NEC monitor. I think subject matter has something to do with it, as well as jpeg downsizing methods.
You will not see any resolution advantage in web-sized photos from a super-high-resolution camera.
A few years back I asked readers to participate in a little experiment at my blog. I shared several versions of a photograph of a particular subject and asked them to compare. I did not tell them what the difference was, but I asked them to judge whether the images were the same or different.
Viewers were shown three images that had been downsized for screen presentation on the web. It was what might be called an \"ABX discrimination test.\" Samples A and B were different and sample X matched on of the first two. Viewers were asked to determine all three were the same, all three were unique, or two were the same and one was different. In the end it turned out that the test indicated that viewers could not tell the difference between the samples in any consistent way.
100% magnification crops from the test images are available here: http://www.gdanmitchell.com/2009/12/06/experiment-1-the-answer
(You can see that the resolution of the sources images is grossly different — yet once they were resized for the web the differences were not apparent.)
This reinforced what seems obvious, namely that web display doesn\'t challenge the resolution capabilities of much of any camera.
Dan
I wonder if the downsizing method will be critical? I currently use bicubic smoother in one step followed by a sharpening using Topaz. I have used dozens of methods including some of the multi step actions. Years ago I settled on the simple one I use now.
But we will be going from over 8,000 to 850 wide, thats a big step.
The downsizing method has a far, far, far bigger effect on the final sharpness of web images than the original resolution has, at least when we are talking about files from cameras released in the last half decade or more. Sharpening methods are also important.
The detail produced by a 50MP file is gone in web presentation though. For example — using rough numbers — each pixel of a 1024 pixel width image on the web consists of the average of more than 60 pixels from the original 50.6MP 5Ds file.
Dan
Jun 17, 2015 at 10:53 AM
Previous versions of gdanmitchell's message #13064344 « 5DS/R Experiences »
At least on my 27 inch NEC monitor. I think subject matter has something to do with it, as well as jpeg downsizing methods.