Tamron's stabilised fast standard prime — the SP 45mm f/1.8 VC for Canon EF with unique specification.
The Tamron SP 45mm f/1.8 Di VC USD is a standard prime from Tamron's SP (Super Performance) line for Canon EF full-frame bodies, notable for combining image stabilisation (VC) with a fast f/1.8 aperture and USD ultrasonic autofocus in a 45mm slightly wide-of-normal focal length.
The lens delivers 45mm at f/1.8 maximum aperture with Tamron's VC (Vibration Compensation) stabilisation, USD (Ultrasonic Drive) autofocus for fast and quiet operation, Di full-frame coverage, and an eBAND coating for flare and ghosting control. The 45mm focal length is slightly wider than a standard 50mm.
The combination of f/1.8, VC stabilisation, and USD autofocus in a single 45mm lens is rare — most fast primes omit stabilisation on the grounds that the fast aperture compensates. Tamron's SP 45mm argues that stabilisation and fast aperture serve different purposes: stabilisation corrects for camera movement while fast aperture enables action-stopping shutter speeds. Suitable for event, documentary, and travel photography.
Test VC operation across stabilisation modes, particularly in video where stable handheld movement matters most. Verify USD autofocus speed and accuracy for documentary use. Check for any focus shift between wide and stopped-down apertures. Inspect the front element condition and verify eBAND coating uniformity.