SPECIFICATIONS
Mount Type: For Sony Front: E-mount, Rear: E-mount | For Nikon Front: Z-mount, Rear: Z-mount
Shooting Screen Size: 35mm full frame size
Depth of Field: Approximately 1/2 of the attached lens
Focal Length: 2 times the focal length of the attached lens
Aperture: 2 stops higher than the attached lens
Lens Construction :5 groups, 9 elements
Maximum Magnification : 2 times the magnification of the attached lens
External Dimensions: For Sony Φ66.3x29mm | For Nikon φ70.5×29.5mm
Weight: Approximately 225g : For Nikon Approximately 280g
COMPATIBILITY:
1. TC-2.0x For Sony
Viltrox 135mm F1.8 LAB FE
Sony SEL70-200G2
Sony SEL70-200GM2
Sony SEL70-200GM
Sony SEL100-400GM
Sony SEL200-600G
Sony SEL400-800G
Sony SEL300F28GM
Sony SEL400F28GM
Sony SEL600F40GM
2. TC-2.0x For Nikon
NIKKOR Z 400mm f/2.8 TC VR S
NIKKOR Z 70-200mm f/2.8 VR S
NIKKOR Z 100-400m f/4.5-5.6 VR S
**When a teleconverter is attached, the lens’s effective maximum aperture will change
proportionally (e.g., f/2.8 becomes f/5.6). Due to reduced light transmission and increased
diffraction, image quality at extreme aperture settings may exhibit a slight decrease in
resolution, as well as more pronounced vignetting.
To maintain optimal optical performance, the lens may restrict both the widest and smallest
aperture settings when used with a teleconverter. It is recommended to select a mid-range
aperture to achieve the best balance of sharpness and overall image quality.*
VILTROX EF-E II Lens Mount Speed Booster Adapter 










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