Challenge has finished
Waterways and canal need locks to raise and lower boats between stretches of water of different levels. They can be small or huge, alone in the middle of nowhere or part of a series of locks in the middle of an urban environment. Show us images of a single lock or a series of lock, with or without boats or ships.
Show full rules
Wednesday, 27th April, 2011 (GMT)
Wednesday, 4th May, 2011 – Tuesday, 10th May, 2011 (GMT)
Wednesday, 11th May, 2011 – Tuesday, 17th May, 2011 (GMT)
Capture date rules:
Maximum number of entries per user:
Maximum number of entries in challenge:
These entries were provided by the challenge host(s) as samples and cannot be voted on. Upload sample image.
p previous n next
Back to: Challenges homepage
Most popular cameras
Beginner's GuidesGetting StartedIn-depth testingLatest Camera ReviewsBeyond the studio testsFeature Articles and Videosreal world performanceField Test Videossee how we seeSample GalleriesIn-depth ReviewFujifilm X100FShow CoverageHits and Misses from CP+ 2017Throwback ThursdayClassic Cameras from Days PastWhat's that Noise?Shedding some light on the sources of noise2413FeatureWhat is equivalence?