According to 
Sony, the current chip shortage caused by production stops due to the Corona virus is more serious than expected and is causing more and more cameras to be out of stock. In addition to Sony, other major camera manufacturers such as Nikon and Canon are also affected by the lack of important semiconductor components. The shortage affects not only complex chips, but also such diverse rather simple small components as power supply ICs and audio codec chips.
Sony Alpha 7 IIR
Until now, Sony had always offered camera and lens models as new products for quite a long time, which were actually already obsolete due to new versions. But now, in view of the scarce component supply, Sony has to decide which cameras should be produced with them and which not. After Sony had already stopped the production of the in the meantime 6 years old Alpha 9 and the Alpha 7R II at the beginning of the year, models of the Sony Alpha 7 II, the two years old Alpha 6400, the Alpha 6100, the ECM-B1M shotgun microphone and the camcorder Sony PXW-Z190 follow now because of it.
Sony Alpha 7 II
While Sony describes these production interruptions as temporary, it is not clear if or when production of these cameras will restart. However, Sony intends to keep its customers informed about production interruptions and restarts.
According to information published by Japan&s Nikkei.
67% of Sony&s 159 mirrorless interchangeable lens cameras are currently classified as "low stock" and 13% as "out of stock" at a major camera retailer in Japan - a similar picture is seen in other countries, where many products are currently out of stock. These supply (or actually production) problems make it impossible for camera manufacturers to increase their sales again after the crisis year 2020, despite corresponding current demand.
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