Canon CDI-E075-010 - Manual (Page 206)

200
Close-up Lens 250D (58 mm) (Optional)
Focal length: 250 mm
Focusing range 10 - 25 cm (0.33 - 0.82 ft.) (when attached to a
(from tip of lens): PowerShot G5)
Thread diameter: 58 mm Standard filter threads (Conversion Lens Adapter
LA-DC58B is required to install the lens on a PowerShot G5)
Dimensions: Diameter: 60 mm (2.4 in.)/Length: 12 mm (0.5 in.)
Weight: Approx. 80 g (2.8 oz.)