Holes

Canon EOS 40D + Canon EF 35-135mm f/4-5.6 USM lens.
The lens was set at 56mm. The aperture was f/8. You're always alright at f/8. Shutter speed was 1/180th (you'd have drunk a lot of coffee before 1/180th was too slow for a motionless pair of watering cans). ISO was 800; the 40D was quite good for high ISO considering it came out in 2007.
But it had a Byzantine menu system. Big failure, really.