So I shoot with a D300s at the moment and since going Nikon several years ago have been super happy with the performance of my bodies (D300, D700, D300s). However, since selling the D700 I have missed the undefinable force of nature that is full-frame sensor.
Looking at my options it seems that, without too much outlay over and above what I'd get for the lovely D300s, I could get a 5D and likely have some change. I loved my 5D when I had one, a bit slow, not much fps and pretty basic. But I mainly shoot on city breaks, so street style, these days. Add a 40mm pancake (which I also owned/liked) and street heaven! Shutter actuations at the age of this body could be an issue!
Alternatively, I could get a 1Ds Mk II for an extra £200. I'd get nice big files from the bigger sensor, quality build, but extra weight and ol' school interface. No experience of this body, but have liked the pro Canon bodies I have owned. The accuracy of AF is head and shoulders above the consumer level. More wriggle room on the pro shutter actuations.
Then there's the D700! Still the best camera I've ever owned and I have lots of Nikon stuff that would work with it, like spare batteries, remote, a couple of my existing lenses. Amazin' low light performance, lovely images, great interface, good resale, compact but great build, tho' needs a grip to deliver best fps, and likely £200 on top of the D300s sale.
So, my question is not about brand, I can be happy either way, but about image quality first, that something special, then all round usability.
I am thinking D700, 1Ds Mk II, 5D in that order. But I ain't owned the 1Ds and I guess that's what I'm mainly thinking as a valid alternative approach to FF.

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