My first pancake lens
I bought this product because it´s price and aperture point.
A 35mm lens allow you to make photos in the same size eyes see. With 40mm allow you to zoom in just a bit and this makes that photo doesn´t change in composition but in focusing the motive.
Positive things are the acurate focus, and extremely fast movement.
The hood comes with objective, it is metall made. There is a screw cap in front-front, pretty small, that screws into the hood, and another screw that is the hood 49mm screew for filters etc.
"Negative" things, if there is any. It is the size. But it is a pancake, so what did you expect? It is so small that if you want to focus manualy, you´ll find something strange, we are not used to manage so little lenses. With a focus ring so small. For me that is the only inconvenient, wich Pentax solved in this way: in autofocus you can turn the focus-ring smothly without forcing anything, and if you have failed, refocus automaticaly without touching any switch button. And that is a very very good point.