For the Leader Camera Club's latest challenge - technology - members covered a huge range for the theme.
From the wheel to flight, photography to engines, the vast changes in technology over time are on display. Each will have proven incredible in their era.
The Leader Camera Club is a friendly and supportive group of more than 1,000 amateur and professional photographers.
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Members share images daily on all manner of subjects, and take part in regular topic challenges.
These have included graffiti, drones and most recently a colour challenge with white.
To see more or to join, visit the Leader Camera Club Facebook page.
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