You can find a very long list of 4th of July deals on that BHphoto page. It includes deals on Sony-Zeiss-Samyang cameras and lenses! And Adorama also has launched deals on cameras and lenses.
A shortlist of deals (but there are many more!):
Sony A7rIII with 2% reward
Zeiss Batis 25mm with 4% reward
Zeiss Batis 18mm with 4% reward
Save $132 on the Samyang 35mm f/2.8 FE
Sony 35mm f/1.8 with 4% reward
Apple Macbook rebates