Aside from a very slight misfocus at ISO 400, you can see that the A7 III photos are just a touch sharper, likely due to a weaker anti-aliasing filter. ISOs 100 through 1600: Sony A7 III vs A7 II – ISO 100 through ISO 1600Īs you can see, at lower ISOs, the difference between the two cameras is quite slight. Click on the image to open it and make sure you zoom to full size to properly evaluate the results. 100% crops from ISO 100 through ISO 1600 are below. The full image where the crops are taken from is below (A7 III, 85mm, f/4, ISO 100, 0.6 seconds): The test scene – Sony A7 III with Sony FE 85mm f/1.8 f/4, 0.6 sec, ISO 100Īs noise in the bright areas is often harder to discern, I took the image crops from an area in the darker part of the image near the top of the frame, that also showed a fair bit of detail. The cameras meter a bit differently, but each camera was shot at the same shutter speed for each ISO, providing equivalent exposure. Sharpening, white balance, etc, were all matched in Lightroom to provide an even playing field. The A7 II tops out at ISO 25,600, but I wanted to see how far it could go, so I continued to take shots with the A7 II, underexposing by 1, 2, and 3 stops and bringing the files up in Lightroom by the same amount, to deliver equivalent exposures for ISOs 51,200 through 204,800. I then ran each camera through full stop ISOs from ISO 100 to the camera’s maximum. I placed each camera on a tripod in a room with relatively dim indoor lighting, utilized self time to avoid shake and focused on a bookshelf using the Sony FE 85mm f/1.8 lens at f/4. Improved high ISO is certainly not the only improvement with this sensor, and in my shooting with the camera so far, I have found the A7 III to have better shadow detail and more malleable files in general, but I have definitely noticed improved performance at higher ISOs, and wanted to see how it truly performed in comparison to the A7 II, the model it replaces in the Sony lineup. The new Sony A7 III – an upgrade to 2014’s A7 II I’ve got an A7 III in my possession, and while a full review will be forthcoming in the next week or two, I thought I’d take a quick look at the new sensor with regards to high ISO performance. The new A7 III put a huge number of upgrades into the ‘basic’ model of full-frame mirrorless camera, including vastly improved autofocus, dual card slots, a bunch of new features and a brand new backside illuminated sensor. Hello, everyone! The web is buzzing with all the reviews and news of Sony’s new powerhouse for a bargain price, the A7 III.
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December 2022
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