Posted by mark on Dec 14 2015 in Minerals
Bismuth Crystal
A 4x lifesized macro of a bismuth Crystal:
![Bismuth Crystal Bismuth Crystal](https://www.markcassino.com/b2evolution/media/blogs/calarti/2015/15-12-14/.evocache/imgp9271-9340_dmap_tm1_tu3_hp.jpg/fit-1280x720.jpg?mtime=1450132566)
This portion of the crsytal was in a recessed "stair step" structure, which was very difficult to light. I wound up abondoning the use of flash and instead shot with ambient lighting. This resulted in a very long shutter speed of about 1/2 second for each image. Made with a Pentax K01 and reverse mounted SMC K 24 f3.5. 70 stacked images.