**Specifications:**
**Brand:** Tamron
**Model:** 90mm F2.8 Di III Macro VXD (Model F072)
**Type:** Multi-purpose macro lens
**Features:** Excellent image rendering and optical performance, 12-blade circular aperture for beautiful circular bokeh and starburst effects
**Compatibility:** Sony full-frame a series/APS-C a series/NEX series cameras
**Recommended Usage:** Insects, flowers, animals, portraits, still life
**Evolution:** Introduced in 1979 as the SP 90mm F/2.5, known as "Tamron 90 Macro," continuously innovated to the latest version 90mm F/2.8 Di III Macro VXD (Model F072)
**Lens Construction:** 12 groups, 15 elements including LD (Low Dispersion) glass
**Aperture:** F2.8 - F16
**Filter Diameter:** Φ67mm
**Maximum Magnification Ratio:** 1:1
**Minimum Focus Distance:** 0.23m
**Angle of View:** 60°
**Diaphragm Blades:** 12
**Dimensions:** 126.5mm length
**Weight:** 630g
**Additional Features:** Customizable settings, compatibility with Tamron Lens Utility software for firmware updates and customization
**Accessories:** Windowed lens hood, compatible with rotating filters for easy operation
**Manufacturing:** Made in Philippines
**Compatibility:** Nikon Z7II, Sony a7R IV
**Lens Firmware:** Updateable via Tamron Lens Utility software
**Lens Control:** Focus limit switch, customizable MF settings, A-B focus, Iris smooth, focus lock for astrophotography
**Design:** Compact and lightweight design for easy portability, high-gloss black finish for durability and aesthetics
**Sample Images:** Provided for reference
**Lens Structure:** 15 elements in 12 groups, including LD glass
**Technical Information:** Maximum aperture, minimum aperture, filter diameter, magnification ratio, closest focusing distance, weight, circular aperture, length
Please note that specifications may vary slightly based on the camera model and firmware version.