Comparison of Olympus 75mm ƒ/1.8 M.Zuiko Digital ED and Tamron SP AF 90mm f/2.8 Di Macro 1:1 [S]ave
| Attribute |  Tamron SP AF 90mm f/2.8 Di Macro 1:1 × |  Olympus 75mm ƒ/1.8 M.Zuiko Digital ED × |
|---|---|---|
| Diagonal Angle of View (degree) | 27.00 | 16.00 |
| Aperture (f) | 2.80 - 32.00 | 1.80 - 22.00 |
| Diaphragm Blades Type | - | circular |
| Filter Size (mm) | 55 | 58 |
| Notes | Available mounts: Canon, Minolta, Nikon, Pentax; Includes lens hood and case. | Included Accessories: Lens Cap (LC-58E), Lens Rear Cap (LR-2). Metallic Lens Hood (LH-61F) and Lens Cap (LC-61) optional. |
| APS Equivalent | 1.5x: 135mm; 1.6x: 144mm | - |
| Type | Telephoto Prime Macro | Telephoto Prime |
| Diaphragm Blades | 9 | 9 |
| Lens Construction | 10 elements in 9 groups | 10 elements in 9 groups, including 3 ED lenses and 2 HR lenses |
| Image Circle | Image Circle | Image Circle |
| Focal Length (mm) | 90.00 | 75.00 |
| Brand | Tamron | Olympus |
| Name | Tamron SP AF 90mm f/2.8 Di Macro 1:1 | Olympus 75mm ƒ/1.8 M.Zuiko Digital ED |
| Weight (g) | 405 | 305 |
| Diameter (mm) | 71.5 | 64 |
| Length (mm) | 97 | 69 |
| 35mm Equivalent | - | 150mm |
| Magnification Ratio (x) | 1 | 0.1 |
| Focus Details | External focus system, lens length varies while focusing | - |
| Closest Focus (m) | 0.29 | 0.84 |
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