2. Review consensus
Under construction · Phase 4Review consensus
A consensus will appear only after at least three independent substantive reviews have been indexed.
Samyang / Rokinon 8mm F3.5 UMC Fish-Eye CS II
APS-C·Prime·Manual focus·Unknown
8 mmFocal length
f/3.5Max aperture
450 gWeight
1. Physical size profile
Dimensions confirmed for Samyang / Rokinon 8mm F3.5 UMC Fish-Eye CS II: 101.1 mm long and 77.8 mm maximum diameter. Mounted on a top view of Sony α7 V, drawn at one millimetre scale from a common mount centre and axis. The top view preserves the traced grip-to-lens relationship; the illustrated edge clearance is 2.5 millimetres apart.
This APS-C lens requires the full-frame body’s APS-C crop mode for its intended image circle.
8 mmFocal length
f/3.5Max aperture
450 gWeight
- Mount
- Sony E
- Coverage
- APS-C
- Lens type
- Prime
- Product status
- Unknown
- Focal length
- 8 mm
- Maximum aperture
- f/3.5
- Focus
- Manual focus
- Stabilization
- Unknown
- Power zoom
- No
- Minimum focus
- 0.3 m
- Maximum magnification
- Unknown
- Weight
- 450 g
- Length
- 101.1 mm
- Maximum diameter
- 77.8 mm
- Front filter thread
- Unknown
- Size-profile level
- Dimensions confirmed
Designed for APS-C Sony E-mount bodies. Full-frame bodies require an APS-C crop mode for the intended image circle.
Mounted profiles compare physical size only. Equivalent field of view and objective multi-lens comparison remain planned for Phase 3.
3. Sharpness profile
Under construction · Phase 4Sharpness evidence
No inferred sharpness scores are shown while the observation schema and normalization method are unfinished.
4. Bokeh profile
Under construction · Phase 4Bokeh evidence
The future profile will summarize sourced observations, not simulate this lens’s optical output.
5. Source reviews
Under construction · Phase 4Review index
Review links will be published only after source identity and coverage are verified.
6. Data provenance
- Verification
- Official manufacturer source
- Checked
- 2026-07-12
- Product status
- Unknown
- Unknown handling
- Explicit
7. Similar verified lenses
Kamlan 8mm F3.0 FisheyeSamyang / Rokinon 8mm T3.1 Cine UMC Fish-Eye IISamyang / Rokinon 8mm T3.8 VDSLR UMC Fish-Eye CS IICore specifications
- Mount
- Sony E
- Coverage
- APS-C
- Lens type
- Prime
- Product status
- Unknown
- Focal length
- 8 mm
- Maximum aperture
- f/3.5
- Focus
- Manual focus
- Stabilization
- Unknown
- Power zoom
- No
- Minimum focus
- 0.3 m
- Maximum magnification
- Unknown
- Weight
- 450 g
- Length
- 101.1 mm
- Maximum diameter
- 77.8 mm
- Front filter thread
- Unknown
- Size-profile level
- Dimensions confirmed
Dimensions confirmed for Samyang / Rokinon 8mm F3.5 UMC Fish-Eye CS II: 101.1 mm long and 77.8 mm maximum diameter. Mounted on a top view of Sony α7 V, drawn at one millimetre scale from a common mount centre and axis. The top view preserves the traced grip-to-lens relationship; the illustrated edge clearance is 2.5 millimetres apart.
This APS-C lens requires the full-frame body’s APS-C crop mode for its intended image circle.
Under construction · Phase 4Review-derived profiles
Sharpness and bokeh summaries require a verified observation system.
Under construction · Phase 4Review index
Consensus requires three independent substantive sources.
Data provenance
Official manufacturer source checked 2026-07-12. Recorded catalogue status: Unknown.
Open Specification source ↗