Reasons for wanting higher mega pixel count

Started 3 months ago | Discussions thread
DejayRezme Regular Member • Posts: 119
Re: Aesthetic reasons

hjs_koeln wrote:

Not sure how others feel about it, but to me it´s not only more resolution, from a certain increase on it´s "more resolution plus X". Going from full HD in video to 4k introduces another quality alltogether, and in still photography it is similar.

There´s something fascinating about a tool which allows to exceed the capabilities of the human eye, and resolution is an area where this has become possible (bearing in mind of course that visual physiology is a totally different process than photography).

Digital imagery is immaterial, intangible and therefore elusive, which is kind of a mental stumbling block. There is no original, no ultimate source, b/c copy = original. This sense of digital images being unreal can be compensated by introducing qualities into the digital medium which would not be available otherwise. Again, resolution is one such way, and through it digital photography becomes a tool to reach or create this quality of reality, unobtainable otherwise.

If the immateriality of an image is the price I have to pay to reach this "other" dimension of reality, and if a particular camera is the suitable tool to take me there, I´m willing to go that way.

In this sense, for my taste anyways it can never be enough. A 100mp A7r V, and a 150mp A7r VI? Yes, please!

DejayRezme wrote:

If you think about the bayer filtering basically the color gets interpolated but you still loose some resolution in the color.

So basically you need 40mp sensor to fully resolve on a 4k screen with full color resolution and oversampling (avoiding moire / aliasing or filtering).

That has got to make in impact for certain images? So even if you "just" want the perfect picture on a 4k 8.2MP monitor you need at least 40mp in 3:2. 62mp is the first that allows some zooming and cropping while maintaining the highest quality.

Sony acknowledges this with their "bayer cancelling" multishot mode.

I'm a newbie and I'm not saying it's needed, but to me there seem to be technical reasons for wanting to have that resolution.

Mentioning video resolution was just an analogy. A large jump in resolution, whether in video or in still photography, introduces in my view something else besides just more megapixels.

I think it's a good example or benchmark for this "hyperrealism". I love 4k video. But 4k video looks much better if you downsample from 8k and things like only 8bit, 4:2:0 low color resolution or low bitrates really show in my opinion. Video compression (and jpeg compression too) limits what videos and pictures we see on our monitors.

I'm not quite sure I understand what you mean with introducing an "unreal dimension to reality" - but I think I do. I'm interested in shooting 4k macro videos and also macro photogrammetry to create 3D models out of unseen things.

And of course playing with color. That's why I was really hoping for a A7R IV that oversamples the full sensor and outputs 10 bit 4:2:2 at high bitrate down to "perfect" 4k. Basically downsampling 8k video to 4k.

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