Miserable rainy afternoon here in Edinburgh so I thought I'd sit in and tell you about the lens I use for doing most of my botanical macro work. Sometime in the early 90's I bought a second hand 16mm fisheye lens for using with my trusted old Minolta 9000. It was a good quality lens and one of a range of wide angle manual focus Minolta A mount lenses sigma made at the time. Because of the convex lens surface its not feasible to mount filters on the front of the lens so the lens screws apart to allow the user to attach small filters internally. I soon learnt that using only the barrel part of lens screwed to the camera body allowed for it to be used as an extreme macro lens with a very, very shallow depth of field. I had fun mucking about with it and experimenting and soon learnt that the lens used this way really leant itself to getting really interesting botanical shots. Even with the lens stopped down reasonably far the depth of field is so shallow you only really get a millimetre or two in focus with hugely dramatic bokeh that really blooms out the colours and textures in the background. For many years I've now used this lens for my botanical work and built up a vast portfolio of images based around it. Its quite difficult to use in some ways since the slightest movement will throw an image out of focus and its quite often not practical to use a tripod. I've only used it with my 5N a few times now but it seems to work just as well as it does with my Sony A700. One of the reasons I got my 5N was that my eyesight in my right eye is starting to deteriorate from years of peering at plants and flowers through the viewfinder. I really needed a camera with live view. The small size and tilting screen of the 5N also makes holding and composing photographs a lot easier for my botanical work. I'm really please with how I've got on with it so far. So the lens details are. Sigma 16mm fisheye F2.8 multicoated filtermatic. They come up on Ebay from time to time and seem to go for around the £200 mark. Even just used as a regular fisheye its a good quality lens. Here's some photos of it plus a few of my own shots using it. I've photographed my iPhone plug at f7.1 so you can see just how small the focal point is. This looks really abstract but its actually a twist at the tip of a Bromeliad leaf. Its probably about a cm or so long. Another Bromeliad leaf, this time photographed looking right across its very fine edge.