Nikon D850 or Sony’s A7r III now the #1 camera for Nature Photography? Canon playing catch up?

For years I’ve shot on Canon (my corp/sports work) and Nikon (Nature/Wildlife/Travel) equipment. That said, there’s some reason to believe Sony may stand atop the podium with Nikon. Here’s why:

The new Sony A7r III brings unique features to the table and has fixed their “battery” problem:

  • The A7’s Dynamic Range improved to 15 stops (equaling Nikon’s recording holding top full frame camera the D850). Canon’s choices sit well back at 12 stops (excepting 5D MkIII @ 13.3 stops). For me Dynamic range is a critical consideration allowing the shooter to capture most difficult lighting situations in one shot.
  • Sony is considerably lighter and more compact than the Nikon D850 (2/3rds of the weight/.8 lbs. less) or Canon 5D Mk IV.
  • Sony’s bread/butter lenses are equal to or better than Canon/Nikon.
    • The Sony 16-35mm f2.8 lens (a staple of nature photography) is the highest rated of any full frame manufacturer. The DXO Mark (my independent testing lab of choice) rating of 42, dwarfs Nikon’s 16-35mm F4 (25) while offering one more stop at the same weight. Sony’s lens can also do great celestial work (unlike it’s Nikon counterpart, note the Sony “star eater” issue is now fixed).
    • Sony also offers the newly released 24-105mm f4 which is lightweight and sharper than it’s Nikon/Canon counterparts. The Sony 100-400mm f4.5-5.5 is more compact, lighter weight and sharper than Nikon or Canon’s versions as well.

Sony’s digital viewfinder & LCD screen shooters to see a live view histogram with an “on-screen” overexposure warning indicator (see zebra lines below) while composing a shot. This greatly improves work-flow especially during difficult lighting situations (w high dynamic range). It’s a snap to fine-tune your exposure in manual mode. No more mis-exposing and losing great images.

Note: Nikon offers a histogram (but no overexposure warning) in “live view”/Canon offers neither.

Sony’s Focus Peaking provides depth of field information through the digital viewfinder and the rear LCD screen. Your LCD/viewfinder indicates what’s in focus (red outlined area) and what’s not…as you change the aperture. Allows you to fine tune your foreground focus & aperture choice so that your subject near/far is in critically sharp.

Note: Canon doesn’t offer focus peaking, the new Nikon D850 does in “Live-View” (not in viewfinder).

  • Sony’s has improved their battery storage by offering 2.2 x more photos per charge. A necessary improvement over the A7r II.
  • At 42 MP the Sony provides great resolution on par with the Nikon D850*(46MP) & better than the Canon 5D MkIII(32MP).
  • Unlike these to competing products, the Sony offers suburb low light performance. It can handle celestial photography expertly…the same can’t be said of the others (noisy at high ISOs*).
  • Anything the new Nikon D850 has over the Sony?
    • Onboard focus stacking (a tremendous feature!). The Nikon can be set to take up to 300 photos at successive focus points determined between an inner and outer range. Sony and Canon don’t offer.
    • Slightly better focus tracking for fast moving objects.
    • Many may prefer the larger Nikon body with larger (more comfortable ergonomics) and optical viewfinder.

Notwithstanding, the great onboard features (dynamic range, on-screen exposure, depth of field) and outstanding lightweight optics make the Sony A7r III a contender for Best Full Frame Nature camera .


I just returned from 7 days in Utah shooting with the Sony a7r III (16-35, 24-105 & 100-400mm).  Here’s my reaction:

  • As advertised it’s very easy to dial in the proper exposure through the digital viewfinder (histogram/exposure warning indicator).  Saved me a lot of time & avoided the need to do test shots to dial in exposure.
  • Focus peaking was also a huge time saver.  No more hunting around for the hyperfocal point, checking sharpness by magnifying images on the rear LCD. I was able to confidently shoot at larger apertures and “know” I had critical focus (ergo F11 safely inside most lense’s sweet spot for corner to corner sharpness). The Nikon 850 has this option also, but only on the rear LCD.
  • Seldom needed a shutter release. Since I’m not using the mirror lockup option, I could simply use the 2-second timer.  Easier not to drag around the appendage.
  • I’m accustomed to using my reading glasses to review the data on my rear LCD.  The Sony displays all that inside the digital viewfinder (adjust the diopter to get proper eyeglass adjustment).  Ergo, I can leave my glasses in my pocket.

Easiest camera to operate I’ve yet used.

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