| Answer | Crossword Clue |
|---|---|
| heliochromy | photography in natural colours |
| heliochromies | HELIOCHROMY, photography in natural colours |
| heliochrome | a photograph in natural colours |
| heliochromes | HELIOCHROME, a photograph in natural colours |
| heliochromic | like a heliochrome, a photograph that reproduces the natural colours of the subject |
