In the days of mirrorless cameras, there will be DSLR-style cameras with สล็อต happyglass inside, making the body bulky, and Sony chose these cameras with A-mount DSLRs, now there are three models: The A68, A99 II and A77 II are available. But most recently, both the Sony website and the camera shop website B&H Photo Video have been listed as No longer Available.
However, Sony has not yet announced that the DSLR camera, which Sony chose to call it the SLT, will be discontinued. But when it comes to a camera like this, Sony released the A99 II, the latest 5 years ago, and after that it will only see DSLRs in mirrorless models, and will discontinue production of cameras like this.
However, the Sony A Mount DSLR started with the Sony A100 which was developed with Konica Minolta before the brand eventually disappeared.