What are the main improvements of the A7 IV over the A7 III?

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If you're thinking about making the jump from the Sony A7 III to the A7 IV, there are a few upgrades that might catch your interest. One of the big ones is the ISO range. The A7 IV has an ISO range that starts at 100 and can stretch all the way up to 204,800, which gives you more room to maneuver in low-light situations than the A7 III. This means you're likely to get better shots when the lighting is less than ideal.

From what our research shows, the standard ISO range of up to 51,200 usually works well in most good lighting conditions. But having that extended range up to 204,800 can really help when you're dealing with very low-light environments. Of course, cranking up the ISO that high can lead to some noise, but the A7 IV still manages to hold its own, delivering solid pictures at ISO 12,800 and even 25,600.

When you get closer to the camera's native maximum of ISO 51,200, you might start to see more noise in your images. Still, based on what we've found from various sources, the A7 IV performs better at higher ISOs compared to a lot of other cameras out there. Naturally, in really dim light or at the highest ISO settings, some noise and image quality drop are normal for digital cameras.

On top of this, the A7 IV brings better autofocus, improved video features, and nicer color output to the table. Its autofocus system has been upgraded to be faster and more reliable, which is great for capturing quick-moving action. Plus, the new menu system and body design make it easier to navigate and handle.

Overall, the A7 IV has some nice upgrades over the A7 III, especially for those who often shoot in tricky lighting. Just keep in mind that to get the best images, it's a good idea to try and keep the ISO settings moderate when possible.