https://www.newenglandautoshows.com/event/ma-west-springfield-marks-northeast-motorsports-expo/
All the Secrets of the Universe and Some Really Important Stuff Too!
(Editor’s Note – I’ve decided to collect Tom’s observations into a separate post and I’ll update it as they come in. I’m very interested in these observations as I wait for my A7 IV to wend it’s way through the delivery chain. – photog)
The A7IV showed up unexpectedly early last Friday the 24th. Your’s?
Cameras are so complicated these days at configuring one to my preferences is almost like moving to a new house.
Sample below, some of the wife’s yard decoration.

,,,
I haven’t had a chance to wring it out yet. Other than the impression that focus seems to be instant in all circumstances and that the form factor is more comfortable in my hand, I don’t have a lot to report.
To someone who has had a succession of now 8 Sony cameras, the much-ballyhooed new menu system just means that I have to relearn the menu system. The function button above the control wheel thankfully still gives immediate access to 95% of the functions that I use the most. And you also still have 7-8 buttons and controls to which you can assign functions.
I’m looking forward to playing with the face and eye tracking.
…
Still playing with the camera, it will take a while.
Just learned a couple of things, my camera, at least, does much better images with the exposure dial kept to -.7.
Tried several exposure stacking series and found that, in aperture priority, the camera mostly but not always creates the different exposures by varying the ISO. All the other Sonys have always varied only the shutter speed. One series inexplicably varied both ISO and shutter.
Big disappointment: My LA-EA 4 does not function at all with this camera.
On the other hand, the focus on my 90mm f2.8 macro has always been sluggish and hunting on my other cameras but it is instant and responsive on the A7IV. The eye autofocus is unbreakable on my animals around the house
30DEC2021 Update
Here is a a shot of mine wearing a 28-70 f2.8 lens.

O frabjous day! Callooh! Callay!
The Eagle has landed. After a day of doubt and hand-wringing over duplicitous freight and shipping dealings, the package arrived intact and seemingly unharmed.
Now comes the fun part. I will start playing around with old lenses and new lenses and settings and adapters and just plain messing around with autofocus and hi ISO picture quality and all manner of to-doings. I may neglect some of my duties to God and Country today but who could blame me. This is my kid under the Christmas tree moment. “You’ll shoot your eye out!”
So recently I’ve been looking at the Sony A7 IV camera as the natural replacement for the my Sony A7 III. It ticks all the boxes. It’s got a sensor that is very close to the A7 III great sensor but with a few needed improvements thrown in. It’s got better autofocus and tracking capability, improved menus, a fully articulated and touch sensitive LED, more megapixels and a better viewfinder. It’s got a lot of other jazz that’s associated with video but since I don’t do video it’s just noise to me. That’s everything that I could ask for in a camera. But the one extra thing I was hoping for was that it would be able to autofocus my old motorless A-mount lenses with the LA-EA5 adapter. When Sony introduced this adapter they didn’t enable all their cameras to use this feature. And for me that was a sore point. I have a couple of A-mount lenses that are extremely good and making them autofocusable would make them much more useful to me.
So it was with great joy that I saw this link on another photo site.
ILCE-7M4 – Lens|Compatibility Information
The A7 IV will allow me to autofocus these lenses and now I just have to sell a kidney to buy the camera.
Huzzah, huzzah!