solution for portrait (vertical shooting) mode

[Aileen]

like an extra grip or bracket to make it easier to shoot vertical images.
I got this question quite a few times, some even ask to switch or turn the back on the camera; I don't see this working with a 100% viewfider view in both ways, but who am I 

greetz!! AiL

[Mats E]

Check out RRS - Really Right Stuff, they have a nice bracket where you easily can change from horisontal to vertical with a quick release. I am getting mine in a couple of days plus a new ball head and quick release plates to rebuild my other existing ball heads.

Mats

[Henry]

I'd agree - the Really Right Stuff L bracket for the H series is great - I've been using one for 3-4 years on my H1, now on my H3D II - could not do without it!  I use the RRS QR plate attached to a Manfrotto 410 plate with the rubber removed and it works well for me.  The RRS L bracket also lets you keep the handstrap attached permanently which also makes hand-held shooting much easier - it feels a good deal more secure than without the strap which had to keep being removed when using the Hasselblad QR adaptor.  Hope this helps!