Experimental

Eyam Moor is a good location to view the gritstone edges to the east of the Derwent Valley - from High Neb on Stanage Edge in the north down to Baslow Edge in the south. All the main edges visible in this photo are comprised of a single gritstone unit - the Chatsworth Grit (a.k.a Rivelin Grit) in the 'Millstone Grit' group (Namurian). Faulting has fractured the gritstone into discrete 'slabs' each with it's own elevation and dip direction. This accounts for the different sections of the edges - e.g. Higger Tor, Millstone Edge, Burbage Edge, etc. This photo is comprised of 10 portrait-style photos joined together using Canon's 'Photostitch software, with some subsequent Photoshop cloning of the sky portion of the photo in order to give sufficient sky coverage along the length of the panorama. The vertical scale has been exaggerated x 2 in order to bring out the various faulted sections of the gritstone edges. The visible features L-R are: Higger Tor, Millstone Edge (part-quarried), Millstone Edge (eastern part - upfaulted, with the gritstone tors of Over Owler Tor and Mother Cap Stone) and Burbage Edge, southern part.

My favourite beeches in the Limb Valley, south-west Sheffield, caught in the late afternoon sunshine. Photoshop treatment inspired by Flickr photographer pete@eastbaywilds.com www.flickr.com/photos/eastbaywilds/

More experimenting with symmetry, mirror plane reflections, scaling and rotation. Fern fronds in the Botanical Gardens glasshouse, Sheffield.

More experimenting with symmetry, mirror plane reflections, scaling and rotation: fern fronds in the Botanical Gardens glasshouse, Sheffield.

More experimenting with symmetry and mirror plane reflections. Fern fronds in the Botanical Gardens glasshouse, Sheffield.

More experimenting with symmetry and mirror plane reflections. Fern fronds in the Botanical Gardens glasshouse, Sheffield.

A scanner photo of sphalerite - zinc sulphide, ZnS, from Nenthead, Cumbria. The mineral specimen was placed straight on the scanner glass. I guess the bright blues, reds and pinks are interference colours produced by the double refraction/reflection through the crystal laminae. L-R size is about 7 cm.

Anthracite from the Pumpquart seam at Cynheidre colliery, South Wales. Coal is beautiful; black diamonds..... L-R size is about 7 cm.