What kind of pictures do you want

. Physical - of the hardware, or shots from the QX1?
Burkeam is correct, the shots are transferred after the flight, and that can take quite a while. With 3 seconds-ish per image, 120 images will take 6 minutes to transfer. I'm going to test how much battery it needs to stay powered on the ground for that.
My first impressions are mixed, and I got a couple of surprises. The kit came with Relish3D leg extenders, but these only raise the height of the Solo so there's 4-5mm clearance (tops!) between the gimbal and the ground. If you forget to tilt the camera up before landing - your lens is toast. If I keep the gimbal, I will have to custom make some serious extenders.
The biggest disappointment for me was how cumbersome it is to take a single photo. I thought the gimbal tilt button was pushed towards me - like photos can be taken with the gopro - but no. The single photo shot is implemented by fast-flicking the tilt lever up. The problem is that the gimbal will tilt up a few degrees when this is done. Some tuning is possible and I'm currently trying to see if I can find a sweetspot where it works. If it doesn't - this could be be a dealbreaker for me. Right now my Solo is used 95% for photography and 5% is (learning) mapping. Getting a decent camera with APS-C sensor in the air was important to me, but I don't want to struggle for every single photo I'm taking.
The blame for this is with 3DR - as the Solo isn't anywhere near being that open source platform they claimed it would be. Escadrone simply can't tap into any other control buttons than the gimbal tilt.
The escadrone guys have been incredibly helpful ever since I contacted them, and they've offered me a return if it doesn't work for me. Jury is still out though... I want to make it work - but I'm not a magician.
I've heard about people using ch7 on the breakout board in the solo - which I think is the pause button? The raspberry PI covers the accessory bay - so I don't think it's possible to add a breakout board. Would it be possible in any way to tap into ch7 elsewhere in the Solo?