The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Venus 105mm F2 and the Tamron 90mm F2.8 VC USD Macro for their suitability to various photography scenarios:
Size and Weight Comparison
Size of a lens is an important deciding factor when comparing two lenses.Tamron 90mm F2.8 VC USD Macro is the longer of the two lenses at 115mm. The Venus 105mm F2 with a length of 99mm is 16mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 76mm.
Weight of a lens is as important as its external dimensions, especially if you are planning to hand hold your camera and lens combination for longer periods. Tamron 90mm F2.8 VC USD Macro weighs 550g, 26% (195g) lighter than the Venus 105mm F2's weight of 745g.
Both Venus 105mm F2 and Tamron 90mm F2.8 VC USD Macro has the same Canon EF lens mount. Some of the latest released cameras that are compatible with the Canon EF lenses are Canon 1D X III, Canon 6D MII and Canon 5D MIV.
Venus 105mm F2 is also available in Sony E , Nikon F (FX), Pentax KAF2 and Sony Alpha mounts.
Tamron 90mm F2.8 VC USD Macro is also available in Nikon F (FX) and Sony Alpha mounts.
Venus 105mm F2 is a prime lens with fixed focal lenght of 105mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides an 35mm (FF) equivalent of 168mm.
Tamron 90mm F2.8 VC USD Macro is a prime lens with fixed focal lenght of 90mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides an 35mm (FF) equivalent of 144mm.