Due to the cost of having 5x4 developed by a lab (£2.50 a sheet) I want to do it myself at home. I've been doing 35mm and 120 for a while now with no problems, so I am comfortable with the processes involved. The options seem to be as follows: Paterson Orbital Cheapest option, but only available used. I could load it in my changing bag and it should be fairly straightforward. Doesn't use much chemistry, so economical too. Combiplan tank Available new, mid-price. Can do six sheets at once, but uses a lot of chemistry. On the downside I have heard many horror stories with leaks and uneven development caused by the slow filling/draining times. Jobo drum This is the most expensive option. It doesn't use much chemistry though, and still does six sheets. I haven't heard of any problems, but the cost of the tank, plus spiral, plus spiral loader and guide, plus base (etc) makes it quite an investment. Or of course hiring a local darkroom and using trays. This may be worth a try to see if it is practical for me, but in the long run I know it would be more economical to do the developing at home, or I may move away and have no access to a darkroom. For someone like myself, starting out with diy 5x4, what do you recommend? I am tempted to just bite the bullet and grab the first good condition Orbital I can find, but I am not really an impulsive guy so I may later regret not having bought the 'right' product. Any advice?