Nikon Goes Mirrorless, Z6 and Z7

Comparison on Key Features

The following table lists key specifications and costs of the mirrorless full frame and medium format cameras currently on the market against Nikon’s newly announced Z6 and Z7. I have attemped to colour code specific specificaitons that might be of key interest to certain types of photographers. 
X-T3 Z6 Z7 A7III A7RIII GFX 50 R X1D
Lens&Camera CA$2680 CA$3398 CA$5198 CA$4550 CA$5950 CA$7575 CA$8640
Tax CA$322 CA$408 CA$624 CA$546 CA$714 CA$909 CA$1037
Total CA$3002 CA$3806 CA$5822 CA$5096 CA$6664 CA$8484 CA$9677
Difference  -CA$5482 -CA$4678 -CA$2662 -CA$3388 -CA$1820 CA$0 CA$1193
Price of Body CA$1900 CA$2599 CA$4399 CA$2600 CA$4000 CA$5700 CA$8640
sq mm sensor 329 864 864 864 864 1452 1452
$ per sq.mm CA$5.78 CA$3.01 CA$5.09 CA$3.01 CA$4.63 CA$3.93 CA$5.95
Mount Dia. 44 55 55 46 46 65 61
pixel pitch 3.76 5.94 4.35 5.91 4.5 5.3 5.3
Stabilization no 5-axis 5-axis 5-axis 5-axis no no
Sensor Shift no
Yes
Card Slots 2 1 1 2 2 2 2
Low Pass Fil. no Yes No No No  No No
Megapixels 26 24 46 24 42 51 51
Weight 539 g 675 g 675 g 650 g 657 g 775 g 725 g
Battery Life 390 330 330 710 650 400
EVF Res. 3,690,000 3,690,000 3,690,000 2,359,296 3,686,400 3,690,000 2,360,000
Base ISO 160 100 64 100 100 100
Sensor Type CMOS-BSI CMOS-BSI CMOS-BSI CMOS-BSI CMOS-BSI CMOS CMOS
Focus Points 425 273 493 693 399 425 117
Age of Camera Sep 6, 2018 Aug 23, 2018 Aug 23, 2018 Feb 27, 2018 Oct 25, 2017 Sep 25, 2018 Jun 22, 2016
Frame/sec 20 12fps 9fps 10fps 10fps 3fps 2.3fps
50mm Lens CA$780.00 CA$799.00 CA$799.00 CA$1950.00 CA$1950.00 CA$1875.00
Fine Arts
Hi resolution, and high Image Quality
Action
Low resolution, high burst rate and best autofocus
Video/Still  
Best video options and excellent stabilization
Generalist
Low cost, medium resolution. light weight and smaller.

Price Comparison of Leading 24MP Mirrorless Cameras

This following table is comparison of cameras and camera kits for 24 megapixel mirrorless cameras.
Nikon Z-6 X-H1 A7III
Kit 
CA$3400
CA$3350
CA$2800
Body
CA$2600
CA$2450
CA$2600
Kit lens
CA$1300
CA$900
CA$530
50mm
CA$800
CA$780
CA$1250
35mm
CA$1100
CA$1180
CA$1000

Nikon Advantage

The Z7 would be a minor upgrade from the A7RIII with the following features.
1. Slightly higher resolution
2. Lower base ISO 64 (but only on the Z7)
3. Larger LCD with almost twice the resolution (although the more important viewfinder is similar)
4. the XQD card speed
5. The faster lenses possible in future.
6. Bigger Grip and Dials
7. LCD screen readout on top of camera
8. Lower chromatic aberration
9. Smaller wide angle lenses
10. Greater ability to adapt to third party lenses

Nikon Disadvantage 

1.Bigger and Heavier Body than Sony
2. Slower frame rate than Sony (although the Z6 is faster than A7 but slower than A9)
3. No NFC compatibility
4. Almost half the battery life of Sony’s battery life
5. No pixel Shift technology.
6. No second slot
7. No eye focus feature

References

Nikon Z7 field report by Marsel van Oosten
Z series Lens Mount explained by Nikon Engineer
DSLR Video Shooter Why the Z is a great Video Camera
Three Blind Men and an Elephant, Have me thinking, Nikon’s New Mirrorless
DPreview review of the Z7
DlPreview Nikon Z6 review
Matt Grange gets real on the Nikon Z7
Geoff Livingston all the problems with the Nikon Z7 can be fixed in software, just early release problems.
Camera Labs review of the Z7
Camera Labs review of the Z6
Tony & Northrup Review a Canon Shooters Review