Tamron Vs Canon EF 100mm f/2.8 USM L IS macro and Sigma AF 105mm f/2.8 DG HSM OS macro:

Here’s a spec comparison between the Tamron and, its direct competitors, the Canon EF 100mm f/2.8 USM L IS macro and Sigma AF 105mm f/2.8 DG HSM OS macro:

 

Tmron AF
90mm f/2.8 Di VC USD macro		 Sigma AF
105mm f/2.8 EX DG HSM OS macro		 Canon EF
100mm f/2.8 USM L IS macro
Design (elements/groups): 14/11
inc. 1xLD & 2xXLD elements		 16/11
inc. 2xSLD elements
floating elements		 15/12
inc. 1xUD element
Aperture blades: 9 (circular) 9 (circular) 9 (circular)
min. Focus: 0.3m (1:1 magnification) 0.312m (1:1 magnification) 0.3m (1:1 magnification)
min. working distance: 0.139m 0.142m 0.149m
Weather Sealing: yes no yes
Weight: 550g 725g 625g
Size: 76.4×114.5mm 78.3×126.4mm 77.7x123mm
Filter Diameter: 58mm 62mm 67mm
IS: yes yes yes
Price: ~480EUR / ~750US$ ~450EUR / ~800US$ ~800EUR / ~1050US$

Tamron Lenses see: http://www.tamron-usa.com/ 

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