Originally posted by mario83 Is ebook for Pentax K-1 worth to buy for someone who using K10D and later K3 for over 10 years and read original Pentax manual with understanding? I'm interesting to know some advanced photography techniques to achieve sharp photos with large aperture lenses for different types of photography and take 100% of Pentax AF / rendering. Currently I feel a lot of limitations in some situations but see on forums that lots of people are very satisfacted in this area.
There is also a K3 e-book. All these ebooks are great, way better than the Pentax manual. And they are not expensive: not more than the price of drinking a cup of coffee and eating a pieve of cake with your partner. So whu would you bother?