bobn2
Forum Pro
There's a contradiction there. If FF has its advantages (which it does) then it must have a 'sense'. Even had FF met your unjustified conditions for it to have a 'sense',Buying FF does has a sense, but only after the FF will have the number of pixels 4 times more than m43, and the lenses will be as good as those for m43 in terms of the absolute resolution. Otherwise the two systems have their advantages and disadvantages with respect to each other depending on a task.Just buy an FF camera and have done with it, if that floats your boat. It will do things an M43 camera cannot do. No amount of bizarre defensive techtalk will ever change that. I would not be in the least bit surprised if FF was the dominant format in five years’ time, with a couple of APS-C and 1” specials for the long-reach crowd and everyone else using very capable smartphones. I like M43 but Olympus versus rest of the world is a bit of a foregone conclusion, isn’t it.
For some parts of it. It has more reach. It doesn't have the same apertures available. As you said above in one of the few sensible and correct parts of this post, the two systems have their advantages and disadvantages. If you're a birder on a budget, mFT is very definitely a better choice.For example, the larger pixels density and exellent tele-lenses (like Oly 300 f/4) in case of the m43 make this system to be significantly better for the world-life photography than FF systems I know.
They allow mFT to compete as well as FF with an f/2.4 lens, since both project the same luminous energy onto the sensor. And whilst FF with a f/2.4 lens is not too shabby, FF has available all the way down to f/1.2, and soon f/0.95. Also, the new generation of BSI FF sensors can do more with low f-number lenses than can the FSI, small pixel mFT sensors.Also the excellent pro lenses like OLY 17 mm f/1.2 allow for m43 to compeet with FF at low light.
What are those ctriteria? If you look at, for instance, the lenstip tests of the 25/1.2 (they don't have a 17/1.2 test) it's managing about 650 lpph centre and edge. The Canon 50mm f/1.8 STM is producing 744 lpph centre and 528 at the edge wide open. But wide open it's collecting from the same AOV through a bigger aperture, so it's collecting more light, with the same size aperture, at f/2.4 it's managing 912 and 720 lpph at the edges. So, collecting the same luminous power from the same angle of view and producing more resolution. Do you have some other 'criteria' you're working on?I do not know f/1.2 lens for FF that is perfectly sharp across the frame (Oly 17 f/1.2 is indeed increadebly sharp at f/1.2). Even at f/2.8 FF lenses are so-so according to my criteria.
Dynamic range is not as important as SNR. A higher SNRgives smoother tones and more colour information. Whether or not that is 'significant' very much depends on personal requirements.The higher dynamic range of FF sensor is only significant if we are looking at an image at the1:1 size or capable to see all the resolved details.
But not as much as a 4MP image downsampled from FF. Whatever is the MP count you need, for the same f-number and shutter speed, you'll get a higher SNR from the FF camera (DR is much more camera dependent, and at some settings you might indeed get more from a mFT camera). Really, your point is fatuous.But in majority cases, if you are interested only in the full-frame view you can downsample the m43 image and increase the dynamic range. For example, the down-sampled m43 image from 16 Mpx to 4 Mpx will have the same dynamic range as 16 Mpx FF-image.
Sure, if you're printing A5, mFT is more than enough. So's a phone.From my experience 4Mpx images printed on the A5-size paper are hardly distinguished from the 16Mpx ones in terms of the visible detailes. The properly downsampled photo looks better if printed at proper size.
Downsmpling does need to be done well.The proper downsampling can also be important in future, when FF-sensors with huge amount of pixels (~80 Mpx) will be typical.
I hope it has a future, but it does depend on the mFT manufacturers playing to its strengths, not abandoning them trying (and inevitably failing) to play to FF's strengths. However you might try to mangle the truth in favour of mFT, you don't convince anyone who might actually be thinking of buying FF over mFT. All you do in preach to the already mFT owning choir. The format can't survive on just them.I am sure that m43 system has the Future.