Sorry to disagree with Dan, but I don't think 6x7cm is the "ideal" format.
I like 6x6 because you don't have to rotate it; it is what it is.
If you're shooting MF chromes, you won't find slide mounts or a projector for 6x7, but they're readily available for 6x6.
After years of experience with hassy i use now a 60mm, 120 macro and 250. All CF lenses. (double the size)
Buying a 60 and a 80 has no great benefit. It only makes youre backpack heavier. I find the 80 to narrow. (50mm at 35mm camera format)
The 60mm hassy is about 40mm in 35mm format, that is how we see the world.
I use my set for macro work, nature and occasionly portraits. And of course i take it with me on holidays.
For the 1/500. I never used it..
I use fuji 100 film and tmax 400.
When i was in kopenhagen, i wanted to make a picture of the mermaid, but it was so crowded with japanese people that i put my hassy upside down above my head to get rid of the crowd...
What i want to say is that there are a lot of tools that can be put onto the body to use it in a different way. No electronics involved, so no real problems that can not be solved in the future.
Expensive? I don't thing to. It was expensive, until the digital age came up. Without this i probably could not have bought a hassy...
One factor that _might_ influence your choice of C vs. CF lenses is the filter size.
The C-series lenses standardized on the B50 (Bay-50 or bayonet 50) attachment, which as one might suspect is a 50mm bayonet.
The later CF (and subsequent) lenses standardized on a B60 60mm bayonet.
If you use filters you can standardize on B60 for the CF lenses, and use them on the earlier C lenses with a B50/B60 adapter (the lens hoods won't fit), or
you can get all B50 filters and use them only on the C-series lenses.
There are a couple of lenses in each series that use larger filter sizes, notably the short FL wide-angle ones.
Firstly, Thank you everyone for your comments! I must say, after looking a bit at the Mamiyas I'm not too impressed, as said they're heavier but they also appear to be rather complicated in their design, rather unergonomic. I prefer the simplicity of the hassy's, but at the same time the Rollei's look interesting (6003 & 6008). I'm definitely going to have to have a little play with them. Not sure if I can find any dealers in town though, Gothenburg is obviously more of a Hasselblad City...
Also I found the comment about the contrast levels in the Mamiyas compared to the Hasselblad lenses rather interesting. I have heard of different optics manufacturers performing differently before, but does anyone know why this is the case?
If you are considering a Hasselblad, you should also have a look at the Bronica SQ. Very similar systems, but Hasselblad cost a lot more. I'm using an older Bronica S2A. Great camera with great lenses!
Haha, It's funny everybody is trying to get me away from Hasselblad! Am I being warned away from a trap? :)