The author of this tutorial is Valentina Aynagos.
Berlin is one of the most exciting Europe metropolises. I'm never bored of walking on the streets of this city, where modern and high-tech architectural buildings are neighbors with impressive XIX century cathedrals and palaces representing the glory of the imperial Prussia.
I took this photo of the Berlin Cathedral on a gloomy November day. I found the composition good enough to make a postcard out of it to share with my friends back at home. This cathedral was built in 1894, so I wondered how it could look on postcards at the end of the XIX century. So I also created a "retro" version of my postcard.
and clicked on the button to process the whole image, then clicked on the button to apply the result and close the plugin.
Here is the result:
I selected Effects in the drop-down menu and the effect Black and White. Then I moved the point on the circle to the right to add a red cast to the photo to imitate the sepia technique. I also slightly moved the red control on Color to Gray Mixer to lighten the tones.
Hint: Use the Autorun-mode in the program Preferences (this mode is active by default) to observe the changes at once. It will save you time when picking out the tone. Otherwise you will have to press each time.
I also added an inscription "Berlin 1908". Well, the photo was taken some 100 years later, but I hope, the Berliners will forgive me this little liberty.