Sony isn’t allowing the stream to be embedded so if you can watch it you will have to look here. If you’re at work and can’t watch there will be a summary below.
Sony a7RIV: B&H Photo / Amazon / Adorama
Medium format like performance
61MP
1 Mount for all
First new sensor since Sony a7RII
Low Noise
15-stops of dynamic range
Resolution to spare
249MP Photo from an almost gigapixel shot with sensor-shift
Lots of talking about cropping to APS-C
567 AF Points
325 AF points for APS-C
10 FPS AF-C and exposure while tracking at 61MP
AI tracking like a9
6k oversample for 4k
Real-time eye AF for video
New mic with a digital signal all the way into the recording stage of the camera for the first time
Dual UHS-II
5.76Milion EVF
New Grip
Coming Sept for $3,500