zhannadesigner

Friday, February 27, 2015

Snowflakes are ice


https://plus.google.com/u/0/+DonKomarechka/posts
Snowflakes have three main challenges to overcome in the process of combining multiple images:

 
- Immediate transitions in depth. Some parts of this crystal are in front of other areas that do not have a gradual connection. This can create odd-looking halos around the point where these separate “layers” connect.
 
- Transparency. Snowflakes are ice, and ice is transparent. This can play havoc with focus stacking software and often requires manual intervention to give the best results. I use Photoshop and manually “paint in” the corrections based on transparency problems using layer masks. It’s a very tedious process, but yields great results.
 
- Sublimation. A snowflake will actively be evaporating from a solid to a gas as you shoot. A frame at the end of the sequence will feature a slightly smaller and deteriorated snowflake than at the beginning of the sequence. Aligning these images can often be frustrating and some level of artistry is required to create the final photograph… careful attention is always required!

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