Has anyone any experience of the Yongnuo YN-560 flash units? It sounds like they may be a viable (and indeed potentially superior if powerful enough) alternative to Metz 45s.  I'm particularly interested to know what the wide-angle light output is like compared to the Metz units; it's hard to...

A few quick no-flash snaps from Bull Pot Farm/Bull Pot of the Witches on Saturday...   http://www.flickr.com/photos/54400681@N03/sets/72157625855449674/ Was it wet!  I heard reports of water going in the lid of Lancaster.

Not being a set of underground pictures, this is perhaps slightly off-topic... but it was so stunning in the Dales on Sunday that I thought I'd share a few of these:   http://www.flickr.com/photos/54400681@N03/sets/72157625421621515/ - Mark

A few somewhat brown pictures of Spain from last weekend ...   http://www.three-tuns.net/mark/photos/matienzo/ Coal Store Cave the top two; then Cueva Vallina; then two self-portraits in Coventosa.

For some time I've been using second-hand Metz 45 flashguns, plus either home-built Gibson or bought Firefly units taped onto them, transported in a drybag inside a small tacklesack.  I'm getting increasingly frustrated with this arrangement for a number of reasons: - The flashguns just aren't...

People have been pestering me for ages to get my cave photos together on the web, so here we are:     http://www.three-tuns.net/mark/photos/ There are plenty more to come in the near future ... - Mark Shinwell