[thxbb12]

The physical dimensions of this lens are very disappointing.

I find it big, heavy and mostly very expensive compared to the competition (other 300mm lenses).
<span style="color:rgb(68,68,68);font-family:Arial, Tahoma, Helvetica, FreeSans, sans-serif;text-align:justify;">It is especially true if you compare it to the Nikkor 300mm VR f4 lens which is designed for a sensor that's 4x the size.
The Nikkor is much smaller, much lighter and $500 cheaper.</span>

• Olympus size: 92.5 x 227 ; weight 1475g
  
• Nikkor size: 89 x 147.5 ; weight 755g
  

The Nikkor is 8cm shorter (!) and about HALF the weight while being much cheaper. I know that for longer lenses the sensor size doesn't play as much in the equation, but still. How did Nikon manage to make it so much smaller/lighter?

An Oly about the size of the Nikkor would have made much more sense IMO.