Before posting any thoughts read David's article here: http://www.photoclubalpha.com/2008/04/1 ... pha-dslrs/
The one I have is the Sony one, not Seagull.
The Pros:
1- much beautiful than the Seagull (from pictures)
2- the lever to change the magnification is bigger
3- seems a bit smaller and tougher than its counterpart
4- has the Sony name and the Alpha sign for a show off
5- light and seems durable
6- rotates around the axis not loosely, same for the focus (hope doesn't get loose in time)
7- bright
The Cons:
1- on 2x the view is fine at center but deteriorated at the edges
2- on 1x the view is fine but the panel underneath is a bit out-of-focused somehow (and worse on 2x magnification)
3- not so 'clever' bag.
I wonder how will it perform on A900 viewfinder as it is compatible.