From today on this site is secured and certified via SSL. In the past it was difficult to get a certificate for your website that is accepted by your browser and you had to pay for it. Letsencrypt.org is a new certificate authority, free and relatively easy to set up. It took me 1 hour (including research) to get the certificate for my domain and set up the Apache2 webserver and my site.
“Praktica”, “Carl Zeiss Jena”, “Pentacon” or “Meyer Optik Görlitz” are very well known brands in East Germany and beyond. When I started with photography, my first camera was a Praktica. On Berlin flee markets you can find them quite often. Carl Zeiss Jena lenses, which are often coupled with Praktica cameras, are still a nice choice as adapted vintage lenses on modern digital cameras.