Olympus E-M5 10 years! – [Is it still usable?] by Peter Forsgård
Today deals at Amazon, BHphoto, Adorama, Amazon DE, Amazon UK, Amazon FR, Amazon IT.
The Best Lenses for OM-System OM1 and the Great Tech Inside (ThePhoBlographer).
Vignetting Graphs Explained (Phillip Reeve)
8 Tips Every Beginning Portrait Photographer Should Know (Explora).
Focal Length Blending: What Is It and How Do I Do It? (42West).
Plenty of news on the facebook OMD group, Panasonic FF and the GH5 group.