Brightin Star 7.5mm F2.8 IV APS-C Ultra Wide Fisheye Lens vs Viltrox AF 9mm F2.8 Air

Optics
Focal Length
8mm
9mm
Zoom Ratio
1x
-
Max Aperture
f/2.8
f/2.8
Special Elements
HR + ED glass
2 aspherical, 3 ED, 3 HR elements
Min Aperture
-
f/16
Elements / Groups
-
13 / 11
Coatings
-
HD Nano multilayer coating; water- and dust-resistant front coating
Diaphragm Blades
-
7
Max Magnification
-
0.15x
Focus
Autofocus
Full-time Manual
Distance Scale
Focus Limiter
Min Focus Dist.
-
13cm
AF Motor Type
-
STM
Focus Method
-
internal focus
Physical
Lens Mount
Sony E
Sony E
Weight
274 g
175 g
Weather Sealing
Hood Supplied
Tripod Collar
Dimensions (D x L)
-
65 x 56 mm
Filter Thread
-
58 mm
Features
Image Stabilization
Power Zoom
Zoom Lock
Aperture Ring
Breathing Correction
Parfocal
Custom Buttons
0
0
Color
Black
Black
General
Launch Price
USD 140
USD 199
Announce Date
May 11, 2026
Sep 19, 2025
Sensor Format
APS-C
APS-C