Dialog in a forum that discusses how to get stars in focus. Most interestingly, this dialog points out that the lens system changes with temperature. Therefore the camera allows you to set the focus beyond infinity, to ensure the infinity point can be achieved at all specified temperatures.
DSLR ("Spiegelreflex") vs DSLM ("Systemkamera")
Sadly, many people have it fixed in their heads that dSLRs are the be-all and end-all of high-quality, high-speed photography.
Spiegellose Kameras lösen digitale Single Lens Mirror Reflex (SLR) ab