Continuing experiments with minerals - this is a 4x lifesized close up of a bismuth crystal:

http://www.markcassino.com/b2evolution/index.php/bismuth-crystal

or

https://www.flickr.com/photos/markcassino/23671905071/

K01 with reverse mounted SMC K 24 f3.5, 70 stacked images. I could not position a flash well to shoot into the crystal (it is very 3 dimensional) so I used ambient light which resulted in a shutter speed of 0.4 seconds per shot. I would prefer to use the flash to counter any vibration related blur, but the long exposures came out OK.

Comments welcome.

Mark

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