So here is an update for everyone. I have completed my decision making process and completed my acquisition:
Before, on the left and after on the right.
Before and after is not quite right. I am keeping the m4/3 setup because it has treated me well and I will be definitely carrying it on backpack and long hiking trips for reasons that will become evident below.
BEFORE
Panasonic Lumix DMC-GX7 with a 14mm ultrawide lens
- 1# 0oz.
- 45-200 f4 Panasonic long telephoto lens (remember there are conversions of 2x for these m4/3 lenses)
Canon 7D Mark II with a 10-22 f3.5 EF-S USM lens
- 2# 14oz - much heavier
- Canon long telephoto lens 70-200mm EF F4 L IS USM (conversion of 1.6x for aps-c lenses)
Advantages of the new system
- much greater picture quality potential
- much better light gathering capability for astronomical and low light photography
- 10 fps baby! - best Canon SLR for wildlife and action photography
- very advanced AutoFocus system - probably the best in the Canon line - especially for wildlife photography
- clear, bright viewfinder
- larger array of high quality glass available
Disadvantages of the new system
- heavy! 2-3x the weight for each component
- bulky
- more expensive - approx. 2x the cost for the kit