Originally posted by Rondec I just have a hard time looking at images and telling what kind of results I would get with a system. Is an image a composite (HDR), or is it a single image run through a program like Topaz? Was there much noise reduction?
The reality is that when you look at images, what you see is the result of a mixture of a photographer's skill, lighting, glass, and post processing (or the lack there of). Very few folks post straight of camera jpegs, although some do.
I think evaluating a camera system based on its sensor is simply myopic--DXO stuff aside. Photography is more than that and so is a camera system.
My preferred methods of evaluating a camera system depends on the context of use that I require. If I’m interested in how accommodating the image file is with my post-processing tools and methods, then I’ll download a sample raw file from one of the test sites we all know, or I’ll contact another photographer and ask is he or she can upload a raw image to my Dropbox.
I don’t need DXO to tell me that the 7D’s files are noisier than hell--a sample file download suffices just fine. And then I can see if my post processing skills can tame the noise while minimizing artifacts etc. Surely this is no different than when you are shooting a landscape in challenging light--from your excellent shots I doubt that you use the green button, but rather are manipulating exposure, ISO, and shutter to get it right. And then later doing some software tweaks beyond the Auto button.
While I’m certainly cognizant of how doped up an image online can possibly be, I'm not seeking out random images. My needs from a camera system are diverse beyond what DXO can convey. Because having excellent AF is a requirement for me, I want to see action and wildlife shots taken by skilled photographers using excellent glass. Not just the cherry shot, but the sequence of 10-12 shots from which that cherry came. That will convey the AF system’s behavior in the hands of someone skilled outside of a lab. I just don’t shoot much sports or birds in a lab and I figure that DXO must have both a FIFA game going and Angry Birds as their reference model.
Again, AF and file handling are just two of so many attributes that matter. I also look at FPS rates, lens system depth and breadth, ergonomics, size and weight, costs, and even weather resistance.
Originally posted by Rondec At the same time, DXO Mark's scores do seem to indicate something that I see in real world shooting. That is to say, when a camera like the K7 gets a poor score compared to the K5, I found it's images much more difficult to process than later cameras. I wouldn't buy a camera purely based on DXO Mark scores and certainly not a lens, but if the score indicates that a given sensor is a dog compared to others currently available, it certainly would give me pause. I definitely don't see them as being on an anti-Canon witch hunt. Nikon's cameras really don't score much differently than Pentax and Sony cameras with the same sensors, so I think their methodology is consistent.
This to me is unconvincing. You are essentially using DXO to either validate your own findings or you’re trusting DXO to understand your shooting requirements better than yourself. It’s analogous to having someone validate their perceptions about you based upon your Meyers Briggs type or zodiac sign.
Agreed that DXO is not overtly anti-Canon and yes, their methodology may be consistent, but perhaps they are measuring the wrong things or the right things wrongly. As a parent of two teenagers, I’ve seen them work well and hard answering a question that differs from the one on the exam. The DXO sports scores come to mind here.
Originally posted by Rondec In the end, it is free information. You can see the graphs that show the differences and decide if those differences in sensors will make a difference to you in the way that you shoot. I do think the guy who posted his comparison that was linked either didn't understand the numbers or, was just pretty heavily biased towards Pentax.
The creators of horoscopes provide lots of freely available impressively laid out graphics and charts. At best it’s some kind of art form and it’s nonsense for many. Just like DXO.
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