Originally posted by stevebrot Cool. I would suggest that a downsize of the K-3 image for comparison purposes is a waste of time. The question, after all, is whether more pixels are worth it, not whether throwing pixels away looks the same.
In any case, the way I am reading your comments in this thread is that for your personal standards and needs any additional pixels are superfluous. In other words, you are happy with your most recent camera purchase. That is a good thing. I shot for seven years with my K10D and did not upgrade until the K-3 because the improvements in the K20D and K-7 did not justify the expense and the QA problems with the K-5 scared me off.
Steve
Well that's easy. NO the extra pixels are not worth it in any meaningful sense except for pixel peeping and bragging rights. People will try and imagine some impossible situation where it makes a difference, but that's just nonsense. It's not enough. But, 27 AF points is nice, I use then constantly, not of interest to single point spot focusers at all, but in landscape a lot of the time it saves me from having to go to manual focus. The 8 frames per second is nice for wildlife. Back when the D800 came out we had a rash of people claiming they needed more resolution.. but 16-24 Mp just isn't it. And now that we have 24 Mp APS-c, I'm not sure 36 Mp FF is it either.
Imagine the finest line visible on a 40 inch wide picture. That would be 1016 mm.
With the K-3 at 2500 lw/ph, if the printer is capable of priming that fine, each visible line would be .4064 mm
On a K5II2 at 2200 lw/ph it would be .4628mm
.4628-.4064=.0564
So people who are telling you it makes a difference are telling you they can see difference of 6/100 of a millimetre... ya right.
An inch is 25.4 mm. If you printer prints at 300 dpi the finest detail you can print is 25.4 /300= .08mm
Your printer can't print fine enough to print the difference between the two. .08 is already bigger than the difference between them. How does getting finer help?
I'm using 40 inches for my reference. For smaller prints it just gets more ridiculous.
There are instances where that .06 mm makes the image look better, and there may be instances where it makes the image just look more cluttered.
At this point the MP race is insane. People have to talk about "new technologies" to try and make a case, unless you're talking image sizes well over 40 inches.
People who talk about differences they can see at this kind of scale are just inflating their egos by messing with you.
Most of it comes down to me saying I can't see a difference and them saying "well you don't know what to look for", or "after you've seen thousands of images like me you begin to notice the difference"
They pretend they're talking about IQ, but what they are really saying is "I am so much more sophisticated than you I can see things you can't." They're lucky they can't be slapped upside the head over the internet. The comeback to that line of course is, "You're imagining that based on your pre knowledge of which is which" You can say that, but it doesn't sink in as much as being slapped upside the head might. The chances of any operant conditional taking hold are minimal, on the internet.