Viltrox EF-E II Autofocus Speed Booster Adapter for Canon EF Lens to Sony E-Mount Camera

- Mount Canon EF lenses on Sony E-mount cameras with full AF, aperture control, and focal boost performance.
The Viltrox EF-E II AF Booster Adapter enhances compatibility between Canon EF lenses and Sony E-mount mirrorless cameras. Built with precision optics, it reduces focal length and increases aperture by one stop. Autofocus is fast and accurate on supported lenses. You retain full electronic functionality including EXIF transmission and image stabilization.
Photographers benefit from the adapter’s light boost, which makes low-light shooting easier without sacrificing quality. It’s compact, rugged, and firmware upgradable via USB. This speed booster is essential for hybrid shooters who want Canon glass on Sony bodies.
Key Benefits of the EF-E II Booster Adapter:
- 🔍 Supports AF, IS, and full aperture control
- 🌠 0.71x focal reducer increases field of view
- 💡 Boosts light transmission by +1 f/stop
- 🔌 USB port for firmware updates
- 🧲 Precision fit on Canon EF and Sony E-mount
Expand your creative possibilities by merging Canon optics with Sony’s imaging prowess.
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Type
Type G AF-S DX lens with built-in CPU and F mount
Focal length
18-140 mm
Maximum aperture
f/3.5-5.6
Minimum aperture
f/22-38
Lens construction
17 elements in 12 groups (including 1 ED lens element, 1 aspherical lens element)
Angle of view
76° – 11°30′
Focusing
Nikon Internal Focusing (IF) System with autofocus controlled by Silent Wave Motor and separate focus ring for manual focus
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Brand Nikon
Lens Type Standard
Compatible Mountings Nikon FX
Camera Lens Description 50 millimetres
Maximum Focal Length 50 Millimeters
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- One UD Element, One Aspherical Element
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- Aperture Range: f/2.8 to f/32
- One Super UD Element, One UD Element
- Two Aspherical Elements
- Air Sphere and Fluorine Coatings
- Dual Nano USM AF System
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- Detachable, Rotatable Tripod Collar
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- 38.4mm (35mm Equivalent)
- Aperture Range: f/2.8 to f/22
- One Aspherical Element
- Super Spectra Coating
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Benefits
- Affordable telephoto zoom lens
- USM autofocus motor
- Super Spectra coatings
- Lightweight design
- 58mm filter size
- 1.5m closest focusing distance
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- RF-Mount Lens/Full-Frame Format
- Aperture Range: f/2.8 to f/22
- Three Aspherical Elements
- Three Ultra-Low Dispersion Elements
- Air Sphere and Fluorine Coatings
- Nano USM AF System
- Optical Image Stabilizer
- Customizable Control Ring
- Rounded 9-Blade Diaphragm
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- Subwavelength Coating (SWC) helps significantly reduce lens ghosting and flare.Lens Construction: 14 elements in 11 groups
- Diagonal Angle of View: 63°
- Focus Adjustment: AF with full-time manual
- Closest Focusing Distance: 0.92 ft./0.28m. Increased maximum magnification (0.21x) help expand the range of expression, especially when capturing close-up subjects
- Filter Size: 2.8 in./72mm diameter
- Max. Diameter x Length, Weight: 3.2 x 4.2 in., approx. 26.8 oz. / 80.4 x 105.5mm, approx. 760g
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- Aperture Range: f/2 to f/22
- Ultra-Low Dispersion Elements
- Ring-Type Ultrasonic Motor AF System
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- Rounded 9-Blade Diaphragm
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