Originally posted by gazonk The OM-D with that lens will weigh very close to 1 kg, it's not very light-weight anymore...
With my EPL2, the resulting combo is 705g.
Compare that to the K-5 which is 661g just body only. The Samyang 35/1.4 is 417g. Even the K-r is 544g.
Also, lightweight and small are not a concern for me - I didn't pick the E-PL2 combo because it was lighter. And if I would want an even smaller and more lightweight combo, there are other MFT lenses that provide that.
Originally posted by Unsinkable II MF sensors are behind on the technology curve compared to FF sensors.
Yes, but my suggestion was to think about why that is the case.
Originally posted by Unsinkable II If you wish to believe FF mirrorless isn't coming, that's fine.
Oh, I certainly believe they are coming. I am just not waiting for them.
Originally posted by Rondec This is the area where four thirds sensors really have lagged behind on the technology curve. They aren't too bad from a noise standpoint, but from a dynamic range standpoint at low isos, they just can't measure up.
Well, large DR is great, but how often do you actually take full advantage of it? As long as I can take my shots without losing information, I don't care if my DR is 10Ev, 12Ev, or 14Ev. The dxomark bar for determining high ISO performance is set at 9Ev - that is considered good DR in an image. I rarely needed more DR than the 10 Ev that my E-PL2 offers - incidentally, it's the same performance I get from my K-7, so it's not like I feel I am moving backwards. In fact the E-PL2 scores higher in high ISO score as well.
Originally posted by abacus07 the iso improvements in digital cameras have started to break the dependence on aperture for shutter speed.
You can compensate with ISO, but why not use both low ISO and fast apertures? ISO improvements are also not huge - barely a bit over one stop between K10D and K-5.
Originally posted by ElJamoquio That said those scores are normalized to pixel size.
Not sure what you mean by that and what you are trying to imply.
Originally posted by gazonk I just compared with dxomark today and discovered that the GX1, which has the 16mp sensor that the OM-D probably also uses, would be a step down from my K10D. Set to the minimum ISO 160, DR and noise is at a similar level to ISO 200 on my K10D. And in fact, if I want maximum DR and cleanness, I avoid ISO 200 on my K10D - whenever I can, I use ISO 100. Although the high ISO of the GX1 is just very slightly better than the K10D, I conclude that state-of-the-art m4/3 still can't quite match a more than 5 year old model.
The GX1 in high ISO scores higher than the K20D by about as much as the K20D does over the K-7. You might remember how much the K-7 was bashed for such difference.
Also, keep in mind that the high ISO score tells you how much more you can push the ISO while keeping the IQ above a certain bar. The GX1 can do this up to 703, the K20D up to 639, the K-7 up to 536, and the K10D up to 522. The GX1 holds the IQ bar better than any of those cameras. And MFT sensors will get better in time as they'll get more money for R&D. Keep in mind that this is a different technology from CMOS or CCD, so it improves at a different rate.
Originally posted by Unsinkable II The "25/0.95"... a US$1,200 manual lens which provides the equivalent DOF and inferior image quality compared to a US$100 autofocus lens on full frame?
Inferior IQ by what rule? Theoretically, it offers the same IQ. Practically, a better lens will offer better IQ than an inexpensive one. Build is another advantage. In the end, the combos would cost the same, so whether you purchase an expensive body to go with inexpensive lenses or an inexpensive body to go with expensive lenses is up to you. I decided to invest in lenses because bodies will always get better in time.
Personally, I don't care about FF - I compared with APS-C - and on Pentax, the only 24/1.4 and 35/1.4 lenses are provided by Samyang. And they are much larger and heavier than the Noktons. Funnily, combined with a K-5 they cost about the same, so no price savings either.
Talk is cheap though, so here are some images from my MFT camera, working hard to overcome the limitations of its small sensor through the use of superior glass.
And for the last demo, here's a shot with a 100% crop from the border - just in case you are wondering whether these only look good when scaled down for web sharing:
100% crop from the above:
I am happy with these results, as far as IQ goes. I am hitting my artistic limits more often than my equipment limits.