PESO - Crystal
Daniel J. Matyola
danmatyola at gmail.com
Mon Oct 19 16:05:18 EDT 2020
Nice project, well carried out.
On Mon, Oct 19, 2020 at 3:12 PM Igor PDML-StR <pdmlstr at komkon.org> wrote:
> Back in May, sitting at home, we did some scientific experiments:
> we grew salt crystals, and then I quickly took a few photos that the kiddo
> could show to her virtual class.
> This is the most "photogenic" crystal
> However, it is actually polycrystalline (you can see crystallites of a
> different crystalline orientation), and it was a "byproduct".
> The main crystal is monocrystalline (except maybe some junk at the edge):
> This was not a big photography project, the photographs were taken
> quickly on the kitchen table (a last-minute thought).
> The biggest challenge with photographing crystals was choosing the light
> and its direction to highlight the crystal planes.
> I would expect that lighting techniques used by Mark C. while
> photographing his snowflakes would be useful for this type of subject,
> even though these crystals are macroscopic, unlike the snowflakes.
> All comments are welcome!
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