Dpreview had a chat with all major manufacturers and asked them about their most important products in the past 25 years. I do agree with Sony when they say the RX1 is their most important camera. I hope Sony will one day also realize that we need a new fixed lens FF camera :)

Here are the answers from all manufacturers:

Sony:
Sony RX1: The RX1 is the beginning of our photography culture. Before that, we had launched RX100 series but still inside the world of Cyber-shot, kind of. RX1 is definitely a different world compared with our previous circumstances. That was a very memorable development period.”
Sony G Master lenses: From these G Master lenses, our technology improvement accelerated and our customers also changed. Customers rated our product highly and that’s become a very big motivation for our designers and our engineers. This generated a very positive momentum from this point onward.

Nikon:
Nikon Z9: Because it’s a landmark in technology, pointing to the capabilities made possible by its parallel readout sensor.

Fujifilm:
Finepix X100: That was the first camera when we stepped up from selling point-and-shoot, entry-level compact cameras. This was our first attempt to do that, using the APS-C-sized sensor. X100 was a huge success, which gave us confidence. We wouldn’t be here if we didn’t have the X100,” he says Fujifilm’s “If that failed, we would have been in a very difficult position.”

Tamron:
Tamron 28-75mm F2.8 Di III RXD: That was a new concept because it was a fast lens, but we changed the focal length from 24mm to 28mm, and users accepted this concept. We knew that if we had a unique concept and we could let users know what that concept was, then people would understand. After that, we started to change, and we started developing unique lenses.”

Sigma:
Sigma 35mm F1.4 Art: If we’d failed with the launch of the 35mm F1.4, Sigma may not have survived until today. It was very fortunate that the customer received it very well and we could survive in the industry.
Sigma 18-35mm F1.8 Art: After we launched the lens, we realized that videographers and cinematographers really loved that lens. So with the introduction of this lens, we started getting interested in joining the cine lens business, so I love these two lenses.

OM System:
Olympus Camedia C-2000 Zoom: The change from film to digital left a big impression for me.

Canon:
Canon EOS Digital Rebel: It played a very important role in shifting [the market] from film to the digital DSLR,” says Go Tokura: “Since 2003, Canon has sold more than 1 million of them.

Panasonic:
Lumix DMC-G1: It was the first camera of its kind. Fifteen years ago, no professional photographer used mirrorless, but now almost all professional photographers use mirrorless.

The new DJI Mic 2 Camera Adapter for Sony cameras is now in Stock at Amazon US&EU and at DJI store. This is a MUST buy accessory if you own the new DJI Mic 2 (Amazon US&EU, DJI store, BHphoto, Adorama.)

It allows you two things:

1. Direct audio recording without the 3.5mm cable
2. Powers the receiver

Sydney perfectly explains why you got to own this one:

I noticed that a couple of readers missed to notice and read this important note from Sony regarding the A1 2.01 firmware update. So I thought it’s best to highlight it to make sure you don’t waste time looking for a solution:

With the latest firmware, the following message will be displayed if a hardware error related to the network function is detected when the Wi-Fi or Bluetooth function is turned on. (Displayed only when a hardware problem is detected, not a software problem)
You can continue shooting by pressing OK, but you will not be able to use the network functions, so we recommend that you take the camera in for inspection as soon as possible.