High ISO Performance (ISO 1600-25600) While the A7RIII carries over similar features from the A7RII (sensor, AF, and shutter), the features inherited have been improved considerably. Sony A9 vs A7RII high ISO…Full Size files. The Sony a7r iii has a well-earned reputation for low-light shooting. Sony A7R II, Zeiss FE 16-35mm f/4 OSS at 16mm at f/8 for 30 seconds at ISO 100. It has a superb full-sized sensor and a wide ISO range, going from 50 through 102400. I own a Sony A7RII and it’s not ISO invariant. The a7RII was way behind competitors; now Sony is the competitor to beat. The camera was released as the successor to the A7RII and the continuation of high-resolution variants available in the Alpha 7 lineup. The Sony A7R IV is the successor to the full-frame 42.4MP A7R III and features a newly-developed 61.2MP BSI-CMOS sensor with a native 100-32,000 ISO range (expandable to 50-102,400).Besides the higher pixel count, the A7R IV has an updated hybrid AF system comprising 567 on-sensor phase-detection AF points as well as 425 contrast-detect points, covering 74% … While the a7RII was limited to a native ISO of 25600, the a7RIII’s native ISO tops out at 32000. ISO 400 has noticable noise that ISO 100 does not. Hey to all! I don’t shoot above ISO 6400 since the noise gets really bad, but a photo shot at ISO 6400 looks much better than a photo shot at ISO 100 with the exposure boosted in post in … A pro feature we are sure about in the A7R II is S-LOG. At ISO 800 we can see a bit of noise in the shadows, but it is not distracting by any means. I rarely use the expanded range though I will use ISO 50 when I need to pull down exposure a stop without reaching for a ND filter. Therefore there isn't … ISO Performance at low ISOs (ISO 100-800) Let’s take a look at how the Sony A7R II performs at low ISOs. While the A7RII is smaller and lighter than most DSLRs, its full frame lenses are just as heavy, or heavier. I did a comparison to the A7RII at mid to high ISO’s (all of those will be in the review) and shot the A9 this past weekend in some pretty dark situations. They both share a native ISO range of 100-32,000, but the a7RIII has clear advantages in both the appearance of the noise (less coarse) and lower levels of color shift/color casts at higher ISO values. Due to the insane sensitivity of the A7S, S-LOG 2 posed a bit of an issue – a native ISO of 3200 which made very strong ND filters necessary in brighter conditions. While Sony a7S remains Sony’s low-light Beast, a7R II expands ISO to well-beyond the range most of us need. Both cameras feature no AA (Anti-Aliasing) filter, meaning images should be sharper, though this comes at an increased risk of moire. I am in the middle of writing my Sony A9 review and was going over ISO samples. Here are some 100% crops at ISO 100, 200, 400 and 800: As expected, images look very clean and low ISOs. The Sony A7RIII is considered a Full-Frame mirrorless camera. User reports coming out over the weekend suggest this has been lowered to a much more ‘normal’ ISO 800 on the A7R II. There’s lots to love about the new Sony a7RII including upgrades to the original a7R of 5-Axis image stabilization found on a7II, Silent Shooting mode found on a7S and Electronic Front Curtain Shutter (EFS) found on every a7-series camera – except the original Sony a7R. But that doesn’t mean that the top end of the ISO range has the same image quality as at the low end. But there’s also bunch of new setting you won’t find on any previous Sony a7-series cameras. By Steve Huff. It’s native ISO range goes from ISO 100 to 25,600 – expandable down to 50 and up to a whopping 102,400.