Rod McD wrote:
Here's my take on it...... FF would make better use of my existing lenses, gives better DR, low light advantage, higher resolution for the same noise, same resolution for lower noise (take your pick), wide angle lens advantage, TS lenses, cropability, and yes, shallower DOF.
I suspect that different photographers will pick out of these reasons the ones that are important to them in considering whether or not FF is for them. Some may conclude that it is, others that it isn't, and that's fine.
Cheers, Rod
Well, if you take it as a healthy discussion and do not take it personally, offensive or as an argument, I would like to offer my opinion as below:
1. You wrote - "FF would make better use of my existing lenses". This is exclusive to you so not necessarily be advantageous to others.
2. You wrote - "gives better DR". Theoretically, the FF sensors should have better DR than cropped sensors however, as per real world experiments e.g. by DXO, the DR difference between FF sensors & cropped sensors are not significant and the difference does not justify the extra price, weight and bulkiness.
3. You wrote - "low light advantage, higher resolution for the same noise, same resolution for lower noise (take your pick)". I think, it is an elaborated version of low light capability, which I know that FF sensors have.
4. You wrote - "wide angle lens advantage". Wide angle lenses are generally used for landscape shots which need deep depth of field (usually). The depth of field one gets at f/16 aperture with an FF sensor camera, can be achieved by larger aperture (lower value) with a cropped sensor camera, e.g. around f/12 by an APS-C camera and around f/8 by MFT camera. Now, as you know that camera companies are filling more mega pixels in the same size sensors, the diffraction limited aperture (DLA) is becoming larger (lower value). Nikon D800 should have its DLA around f/5.6 and Nikon D600 should have its DLA around f/8. Which means if you need deeper depth in FF sensor cameras, you will need to compromise with sharpness due to DLA. Fortunately, Olympus OMD can have deeper depth of field even at f/5.6 so we can avoid diffraction affecting the sharpness.
MOREOVER, if you think otherwise, if in one hand, FF sensor cameras offer shallower depth, how could they be better for those photography needs in which you need deeper depth?
5. You wrote - "TS lenses". I wonder how an FF sensor camera could be better for TS lenses over a cropped sensor camera.
6. "cropability" - It depends on mega pixels and we have enough mega pixels even in cropped sensor cameras.
7. "shallower DOF" - This was known already along with low light capabilities, I needed additional IQ advantages.