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Nikon Z7 versus Sony A7R IV |
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Nikon Z7 versus Sony A7R IV |
After the competition between Canon and Nikon on SLRs, a new disruptive challenger appeared: Sony.
Sony had bought Minolta in 2005 and proposed digital SLRs, first with classic mirror then in 2010 with semi-transparent mirror. In October 2013, Sony introduces a new E-mount and its first mirror-less hybrid camera with full-frame sensor and interchangeable lenses.
Sony creates a new market with two photo models (A7 and A7R), full format of 24 and 36 million pixels. This market is in fact a replacement / substitution market for the declining market for DSLRs.
Sony's business strategy is different from those of Nikon and Canon. While Nikon and Canon have, at one moment, an extensive range of recent DSLRs models, from the simple camera to the pro camera. Sony regularly introduces new versions of its two devices A7 and A7R but lower the price of previous new models of its cameras and continues to offer the others for sale, which allows to have a range of cameras from the oldest to the most recent.
Sony has just introduced the Sony A7R IV with 61 million pixels, we expect the response from Nikon, maybe a Nikon Z8?
... to follow
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Nikon Z7 |
Sony A7R Mark IV |
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Usable lenses |
Nikon S lenses (mount Z) |
Sony E lenses and mount |
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Pixel CCD |
46,89 megapixels with 45,7 usefullmegapixels BSI CMOS |
60,1 useful megapixels BSI CMOS [Sony IMX-455-AQR] 26,2 usefull megapixels in APS-C format |
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Image size |
35,9 mm x 23,9 mm |
35.7 x 23.8 mm |
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Coefficient/135 |
1 in FX : the focal remains the same |
1 full format : the focal remains the same 1,5 in APS-C : 24 mm lens becomes a 36 mm in 135 format |
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Stabilisation |
5-axis internal vibration reduction system |
5-axis internal vibration reduction system, gain of 5.5 steps |
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Electronic viewfinder |
3.6 MP OLED electronic viewfinder |
5.76 MP UXGA (Ultra-XGA) OLED Electronic Viewfinder |
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Speed |
1/8000 s to 30 X=1/250s
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1/8000 s to 30 X=1/200s
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Video mode |
4K UHD 3840 x 2160; 30p (progressive), 25p, 24p. |
4K professional with reading all pixels in mode Super 35mm,[ix] S-Log3, HDR workflow support. |
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Sensibility range |
ISO equivalent 64 à 25 600 |
ISO equivalent 100-32 000 H: 102 400 000 iso |
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Image Processor |
EXPEED 5 |
BIONZ X |
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Continuous shooting mode and consecutive shoots |
9 fps in Jpeg with AE and AF |
10 fps with AF tracking on 68 Jpeg |
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Misc. |
AF system with 493-point phase detection pixels |
567-point AF detection system pixels covering 74% of the image, |
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Dimension/weight |
134 × 100,5 × 67,5 mm / 675 g |
128.9 x 96.4 x 77.5 mm / 665 g |
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Availability |
september 2018 |
september 2019 |
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Price |
$ 3300 (July 2019) |
$ 3500 (September 2019) |
pierre j.
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Created in July 18th 2019, Updated November 5th 2019
© Pierre J.
