A7iii Review: A Very Worthy Base Model Update

I’ve had a great run with my original A7 but have long felt that I could use certain AF, sensor and interface refinements once they fall within my price range. That’s what this A7iii is all about.



My older Sonys demanded then rewarded the effort to familiarize and customize the interface – this generation takes that to a new level. One could simply morph this camera to suit existing preferences, but I feel it is well worth taking a step back and re-thinking old shooting habits to accommodate at least some of the new possibilities.

After a month, I have still not settled on a final setup. (I was at least able to do a productive shoot and enjoy some of the new refinements on day one.)

There are now more assignable buttons than I know what to do with. One good use for one or two of them might be to recall a “Custom Shooting Set”. This momentarily engages a group of focus, drive and/or exposure settings of your choosing. I think of it as back button focusing on steroids, or really just back button for the 2020s. (I cringe now to think of how much slower and more tedious it used to be to switch between shooting styles on my old NEX-7.)

There are some smaller amenities that make this new camera a joy to work with. I particularly love the way the focus area can be set to change as I switch between landscape and portrait orientation. (I find this to be an even bigger time saver than the “Joystick” which is also great to have…) Some might say these are “bells & whistles” but I would sure hate to part with them.

The menu layout gets panned by many reviewers but I’ve made my peace with it. I recommend going through everything once and setting all the things you’ll never want to change. Then set up the “My Menu” section. In one full sweep you can toss in whatever you think you might want to access occasionally. (There are 30 available spots, which should be plenty in conjunction with the assignable buttons and the 12 function menu slots.) It’s easy enough to add, move or delete items later.

I would save my harshest criticism for the documentation. The basic manual seems redundant yet incomplete in all the wrong places. The online help guide is quite a bit more thorough and friendly to navigate. There are still some significant tidbits that you’ll have to glean from reviews or blogs. (Like the way the camera focuses stopped down in AF-C but opens up to f/2 to focus in AF-S.)

The new AF may trump most other considerations for many. I found it not to be infallible or foolproof, but my “keeper” rate certainly has gone up! (This is my first time really using continuous autofocus so I’m still learning.)


(My fellow glassblowers don't tend to keep very still.)

In my Eye AF tests, when the subject moves toward the camera, I noticed the focus could sometimes lag for a frame or three. But then it would catch up, mid-burst. (Try that in AF-S!) I can see the justification for buying an A9 for those who need the best possible tracking. (Ditto silent mode – you will have to deploy it more sparingly with this base model. Thankfully the mechanical shutter is relatively quiet.)



Higher usable ISO has been on my wish list for a while and the A7iii certainly delivers there. For visible noise the new sensor appears to be roughly 1 2/3 stops better than the A7. For colors I’d say about 2 stops; for detail and shadow recovery without banding I’d say even greater. This allows me to comfortably use higher 4-digit and even 5-digit ISO settings I used to avoid. I can now get a malleable RAW capture in conditions that used to be marginal. Not least of all, I can go handheld instead of using the tripod for certain web-bound product shots. Out of all these new refinements, this has had the most benefit for me.


(This guy was not covered by the stage lighting but I was able to push the RAW file and dodge in Photoshop to make it look as though he was. The older A7 would not have fared so well, here.)




(These web-bound product shots go sooooooo much faster without the tripod! The top image was shot at f/16 for depth. EVF has been a huge deal for me for critical shallow focus, handheld, as seen on this bottom shot @ f/8.)

I also love the great dynamic range at ISO 100. The uncompressed RAW captures feel extra “buttery” to process. (My best unscientific assessment.)


(Goodbye, sensor reflections...)


(I love the shadow details I get in high contrast scenes like this. Especially with the Sony/Zeiss 35/2.8.)

If you specialize in landscapes or reportage, you may well want to pay extra for the A7riii or the A9. For my situation (enthusiast, online vendor, $2000 budget, hooked on MILCs and FF, ready to expand low light & try continuous AF) this camera has no real competition.

 

I use Adobe Lightroom and Photoshop.

 

Like JonathanF2 said, no noise whatsoever.
The bad news is, the electronic sensor sweep takes about 1/15 of a second (regardless of the actual shutter setting) so you will experience some rolling shutter distortion with moving subjects and you will encounter banding with artificial light. (Might be invisible under 1/100 with tungsten or might be a total shot spoiler with a higher shutter and a light source that flickers more conspicuously.) So I default to mechanical shutter and use it sparingly. (Have a music video shoot coming up where I might sneak in some silent stills...)

 

Yeah, they don't just charge that extra $2500 for nothing.
I must say, the mechanical shutter on the A7iii seems much improved over the original (which some folks referred to as a "bear trap"). It sounds crisp and quick, like the old NEX-7, but perhaps just a bit softer.
I wonder how much quieter it is possible to make a focal plane shutter for full-frame?
My Canon EOS M has a really nice quiet shutter - almost as quiet as a leaf shutter - but that's APS-C.

 

The 7iii AF is rated for -3 EV to the 7ii's -1 (according to the Wikipedia A7 page).
My experiences would concur with the conventional wisdom that AF & low light are two of the biggest justifications for upgrading.

 

The other day I got to shoot some fellow musicians in full daylight. (That's kind of unusual for me.) It was a good test for my new all-purpose shallow focus user setting. (Used to just do manual shutter & aperture w/ Auto ISO which was OK for music venues at night. Now I use Aperture Priority w/ Auto ISO, Auto Minimum Shutter, "Standard". This way I'm mostly good all the way from sun on snow to candlelight at the aperture of my choosing.)
It was also a good occasion to test the new AF-C, tracking and Eye AF in favorable conditions for once:

This was an unprecedented AF hit rate for me. Maybe an occasional blurred burst here & there when the subjects' faces and/or eyes were too obscured. But those were few and far between. It felt almost strange to be going through hundreds of frames and choosing solely for composition and pose, with OOF not really factoring in all that often.
I'm sure I'll get used to it, though.

 

The next model I would expect to see (after the A7siii) would be an A7riv with monster resolution and PDAF at least comparable to the A7iii. (The A9 series will likely remain in a class of its own with the specialized hardware that allows for the much faster sensor readout.)