The Sony a7R IV outperforms the Sony a7 IV in storage and battery, scoring 79/100 compared to the a7 IV’s 76/100. Both cameras share common specifications, including two memory card slots, NP-FZ100 batteries, and USB charging capabilities. The a7R IV takes the lead with a longer battery life of 670 shots, 90 more than the a7 IV’s 580 shots.
Depending on the camera model, the supplied cable will have the words Sony Corp. printed on the cable. If you need a USB cable from another manufacturer out of necessity, such as losing the cable supplied with the camera, use a USB-standard-compliant cable with USB 2.0 or higher and data transfer capability.
Additionally you need to pick a Bit Rate of either 100 or 60. The larger the Bit Rate the more data that is captured with each video, which also increase file size. All of these settings can be found in the 2nd Camera Menu tab, under “Movie 1” (1/1). Sony’s S&Q Movie Mode (Slow & Quick) is also worth taking a look at.
A Sony spokesperson did offer some elaboration on the A7R IV's weather sealing enhancements vs. the A7R III. "All the external ports are now weather sealed, there’s a new gasket under the lens mount, and the bottom/battery grip is sealed off," the Sony spokesperson told Shutterbug. "The new vertical grip also has more sealing and makes a seal The Sony A7R Mark IV is a higher-resolution evolution of the A7R III, which also makes it the world's highest-resolution camera ever sold to consumers.. In fact, this 60MP A7R Mark IV looks at least as sharp as the pro-only (not consumer) $10,000 100 Megapixel Fuji GFX100 does if you compare my crops at High ISOs (A7R IV crops versus GFX 100 crops).
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