# How do popular brands like Metabones, Commlite, and Fotga compare in terms of lens adapter quality? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

How do popular brands like Metabones, Commlite, and Fotga compare in terms of lens adapter quality?

## Products

### Metabones MB_EF-E-BT4 Canon EF to Sony E Mount T Smart Adapter (Mark IV)
```yaml
product: metabones-mb-ef-e-bt4-canon-ef-to-sony-e-mount-t-smart-adapter-mark-iv
brand: Metabones
price_gbp: 121.78
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
brand: Metabones
mount_type: Sony E
lens_mount_type: Canon EF/EF-S
```

- **Price:** £121.78 [^1]
- **Summary:** Metabones MB_EF-E-BT4 (Mark IV) is an electronic Smart Adapter that provides aperture control, EXIF transmission and image-stabilization support when mounting Canon EF/EF-S lenses on Sony E-mount bodies. It includes a detachable tripod foot, inner flocking to reduce reflections, and firmware-updatable electronics for improved AF and IBIS compatibility. Suited to photographers who want to use Canon glass on Sony bodies while retaining electronic control and stabilization.
- **Ideal For:** Ideal for comparing adapter quality because Metabones offers precision-machined brass construction, true electronic aperture control, and EXIF/IS support, making it a higher-spec, better-built reference versus Commlite and Fotga.

### Commlite Commlite CM-EF-MFT Pro Canon EF to Micro Four Thirds Autofocus Adapter
```yaml
product: commlite-commlite-cm-ef-mft-pro-canon-ef-to-micro-four-thirds-autofocus-adapter
brand: Commlite
price_gbp: 126.26
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
brand: Commlite
mount_type: Canon EF to Micro Four Thirds
lens_mount_type: EF/EF-S to M4/3
```

- **Price:** £126.26 [^2]
- **Summary:** Electronic adapter that enables Canon EF and EF-S lenses to communicate aperture, EXIF and stabilization with Micro Four Thirds bodies; metal construction and electronic aperture control. Suits photographers who want to use Canon glass on MFT cameras with retained electronic functions though autofocus and compatibility can vary by lens.
- **Ideal For:** Good lower-cost alternative to Metabones and Fotga when you need electronic aperture and EXIF transmission but accept less consistent AF performance and fewer advanced features compared with Metabones (no speed‑booster optics, no USB firmware port).

### Metabones MB-EF-E-BT5 Canon EF to Sony E Mount T Smart Adapter (Mark V)
```yaml
product: metabones-mb-ef-e-bt5-canon-ef-to-sony-e-mount-t-smart-adapter-mark-v
brand: Metabones
price_gbp: 298.09
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
brand: Metabones
mount_type: E mount (camera side) / EF mount (lens side)
lens_mount_type: Canon EF / EF-S
```

- **Price:** £298.09 [^3]
- **Summary:** The Metabones MB-EF-E-BT5 (Mark V) is a smart electronic adapter that lets Canon EF and EF-S lenses communicate with Sony E-mount bodies, preserving AF, image stabilization and EXIF transmission. It adds features like IBIS control switch, rubber gasket weather sealing, a focus-hold/custom button and advanced AF support for select Sony bodies, making it a high-end option for photographers switching systems. It is geared toward users who need reliable autofocus and stabilization compatibility with
- **Ideal For:** Ideal for comparing Metabones to Commlite and Fotga because its features-electronic AF support, IBIS control switch, rubber gasket weather sealing, and EXIF transmission-demonstrate higher-end integration and build quality versus many competitors.

### Metabones Speed Booster ULTRA 0.71x Canon EF to Sony E (MB_SPEF-E-BT4)
```yaml
product: metabones-speed-booster-ultra-0-71x-canon-ef-to-sony-e-mb-spef-e-bt4
brand: Metabones
price_gbp: 470.23
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
brand: Metabones
mount_type: Sony E (APS-C)
lens_mount_type: Canon EF (Full Frame)
maximum_aperture: Increases aperture by 1 stop
optical_elements: 5 elements in 4 groups
```

- **Price:** £470.23 [^4]
- **Summary:** The Metabones Speed Booster ULTRA 0.71x (MB_SPEF-E-BT4) is an optical adapter that reduces APS-C crop, widens angle of view by 0.71x and increases a lens's effective maximum aperture by one stop using a 5-element/4-group tantalum-based glass design. It provides electronic communication for AF, aperture control, EXIF transmission, a rubber gasket for dust protection, and a detachable Arca-type tripod foot, aimed at videographers and hybrid shooters using Canon EF glass on Sony E bodies. It suppor
- **Ideal For:** Ideal for comparing adapter quality because its documented 5-element/4-group ultra-high-index glass, electronic integration, and IBIS/IS control demonstrate Metabones' emphasis on optical performance and electronic compatibility compared with Commlite and Fotga.

### Fotga Fotga EF to Sony E Auto Focus Adapter (e.g. Fotga MTZ-EF-E)
```yaml
product: fotga-fotga-ef-to-sony-e-auto-focus-adapter-e-g-fotga-mtz-ef-e
brand: Fotga
price_gbp: null
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
brand: Fotga
mount_type: Sony E
lens_mount_type: Canon EF/EF-S
```

- **Price:** £None [^5]
- **Summary:** A budget electronic adapter that enables Canon EF and EF-S lenses to communicate aperture and AF with Sony E-mount bodies; offers aperture control and basic autofocus but slower AF performance than premium smart adapters. Suited for photographers who want to use existing Canon glass on Sony mirrorless bodies at low cost.
- **Ideal For:** Good low-cost alternative to Metabones and Commlite for users who need aperture transmission and basic AF-while Metabones offers faster AF and richer features, Fotga provides electronic aperture control and compatibility at a much lower price. 

### Commlite CM-EF-E HS High Speed Autofocus Adapter (CM-EF-E HS)
```yaml
product: commlite-cm-ef-e-hs-high-speed-autofocus-adapter-cm-ef-e-hs
brand: Commlite
price_gbp: null
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
brand: Commlite
mount_type: Sony E-mount (camera)
lens_mount_type: Canon EF/EF-S
```

- **Price:** £None [^6]
- **Summary:** Commlite CM-EF-E HS is an electronic AF adapter that lets Canon EF and EF-S lenses communicate with Sony E-mount bodies. Key features include phase- and contrast-detection AF toggle, USB firmware updates, EXIF transfer, electronic aperture control, gold-plated contacts, and a removable tripod foot. It's constructed from aluminum and targets photographers who need autofocus and metadata transmission using Canon glass on Sony bodies.
- **Ideal For:** Suitable for comparing Metabones, Commlite, and Fotga because it offers user-upgradeable firmware, Phase Detection AF support, and EXIF transfer at a lower price point than many Metabones adapters, showing Commlite prioritizes firmware updates and PD AF compatibility.

### Commlite CM-EF-E HS (High-Speed Canon EF to Sony E Adapter)
```yaml
product: commlite-cm-ef-e-hs-high-speed-canon-ef-to-sony-e-adapter
brand: Commlite
price_gbp: 126.26
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
brand: Commlite
mount_type: Canon EF to Sony E
lens_mount_type: Canon EF / EF-S to Sony E
```

- **Price:** £126.26 [^7]
- **Summary:** The Commlite CM-EF-E HS is an electronic EF/EF-S to Sony E mount adapter with firmware-upgradeable USB, phase-detection and contrast-detection AF switching, electronic aperture control, EXIF transmission, and support for lens IS. It uses gold-plated contacts, an aluminum body and includes a detachable tripod foot, aimed at enabling AF and aperture control when using Canon glass on Sony E bodies.
- **Ideal For:** Ideal for comparing adapter quality because it offers firmware upgrades, PDAF support, electronic aperture control, and built construction at a lower price point versus higher-end Metabones adapters (shows tradeoff between features and premium build/compatibility).

### Metabones Speed Booster ULTRA 0.71x II EF-X Mount T CINE Speed Booster ULTRA 0.71x II
```yaml
product: metabones-speed-booster-ultra-0-71x-ii-ef-x-mount-t-cine-speed-booster-ultra-0-71x-ii
brand: Metabones
price_gbp: 484.86
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
brand: Metabones
mount_type: EF to Sony E
lens_mount_type: Canon EF
maximum_aperture: Increases maximum aperture by 1 stop
optical_elements: 5 elements in 4 groups
```

- **Price:** £484.86 [^8]
- **Summary:** The Metabones MB_SPEF-E-BT2 Speed Booster ULTRA 0.71x II is an optical adapter that converts Canon EF lenses to Sony E-mount while widening the field of view (0.71x) and increasing effective maximum aperture by one stop. It uses a 5-element/4-group design with ultra-high index tantalum-based glass, supports electronic aperture control, EXIF, and has a detachable tripod foot; suited for photographers and videographers wanting faster effective apertures and wider coverage on E-mount bodies. 
- **Ideal For:** Ideal for comparing Metabones to Commlite and Fotga because its patented 5-element/4-group optical design, EXIF transmission, electronic aperture control, and precision-machined brass mounts demonstrate higher optical and electronic integration than many third-party adapters.

### Commlite CM-EF-NEX (Electronic Autofocus Adapter for Canon EF/EF-S to Sony E)
```yaml
product: commlite-cm-ef-nex-electronic-autofocus-adapter-for-canon-ef-ef-s-to-sony-e
brand: Commlite
price_gbp: 52.3
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
brand: Commlite
mount_type: Sony E-mount (camera)
lens_mount_type: Canon EF/EF-S
```

- **Price:** £52.3 [^9]
- **Summary:** Commlite CM-EF-E HS is an electronic AF adapter that lets Canon EF and EF-S lenses communicate with Sony E-mount bodies. Key features include phase- and contrast-detection AF toggle, USB firmware updates, EXIF transfer, electronic aperture control, gold-plated contacts, and a removable tripod foot. It's constructed from aluminum and targets photographers who need autofocus and metadata transmission using Canon glass on Sony bodies.
- **Ideal For:** Suitable for comparing Metabones, Commlite, and Fotga because it offers user-upgradeable firmware, Phase Detection AF support, and EXIF transfer at a lower price point than many Metabones adapters, showing Commlite prioritizes firmware updates and PD AF compatibility.

### Commlite CM-EF-NEX Electronic Autofocus Mount Adapter (CM-EF-NEX / CM-EF-NEX B)
```yaml
product: commlite-cm-ef-nex-electronic-autofocus-mount-adapter-cm-ef-nex-cm-ef-nex-b
brand: Commlite
price_gbp: null
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
brand: Commlite
mount_type: Electronic autofocus adapter
lens_mount_type: Canon EF/EF-S to Sony E
```

- **Price:** £None [^10]
- **Summary:** Electronic AF adapter that allows Canon EF and EF-S lenses to communicate with Sony E-mount cameras, offering autofocus, electronic aperture control, EXIF transfer, and a detachable tripod foot. Constructed from aluminum alloy, it targets shooters who want to adapt Canon glass to Sony bodies while retaining electronic functions. Firmware is not user-upgradeable and compatibility varies by lens and camera model.
- **Ideal For:** Good option for users comparing Metabones, Commlite, and Fotga because it provides electronic AF and EXIF transfer at a much lower price while lacking Metabones' firmware-upgrade feature and premium compatibility list.

### Commlite Commlite CM-EF-E Pro (EF to Sony E Smart Adapter)
```yaml
product: commlite-commlite-cm-ef-e-pro-ef-to-sony-e-smart-adapter
brand: Commlite
price_gbp: null
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
brand: Commlite
mount_type: Sony E mount (rear) / Canon EF mount (front)
lens_mount_type: Canon EF/EF-S to Sony E
```

- **Price:** £None [^10]
- **Summary:** Electronic smart adapter that enables Canon EF and EF-S lenses to communicate with Sony E-mount cameras, offering autofocus, electronic aperture control, EXIF transfer, and a detachable tripod foot; compact, metal construction and firmware-updateable on HS/Pro variants. Suits photographers who want to use Canon glass on Sony bodies while retaining autofocus and lens stabilization where supported.
- **Ideal For:** Useful in comparing Metabones, Commlite, and Fotga because it provides electronic AF, EXIF transfer, and (on HS/Pro variants) firmware updates and phase-detection support-features that put Commlite between budget options and Metabones' higher-end Smart Adapters.

### Commlite Commlite CM-EF-MFT Smart Adapter (EF to MFT)
```yaml
product: commlite-commlite-cm-ef-mft-smart-adapter-ef-to-mft
brand: Commlite
price_gbp: null
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
brand: Commlite
mount_type: Micro Four Thirds
lens_mount_type: Canon EF/EF-S
```

- **Price:** £None [^11]
- **Summary:** Electronic adapter allowing Canon EF and EF-S lenses to communicate aperture, EXIF and IS with Micro Four Thirds cameras; made from aluminium alloy with matt-black interior and includes a detachable tripod foot on some listings. It supports electronic aperture control and image stabilization but is reported to be temperamental with autofocus and lens data on some camera/lens combinations. It suits photographers wanting to use Canon glass on MFT bodies with electronic aperture control at a lower 
- **Ideal For:** Good for comparing adapter quality because it offers electronic aperture and IS support in an aluminum build but lacks consistent AF and firmware update ports that higher-end Metabones adapters provide, showing a tradeoff between features and refinement.

### Fotga Fotga DP3000M Canon EF to Sony E Auto Focus Lens Adapter
```yaml
product: fotga-fotga-dp3000m-canon-ef-to-sony-e-auto-focus-lens-adapter
brand: Fotga
price_gbp: null
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
brand: Fotga
mount_type: Sony E
lens_mount_type: Canon EF
```

- **Price:** £None [^5]
- **Summary:** The Fotga DP3000M is an electronic adapter that lets Canon EF lenses communicate with Sony E-mount bodies, providing aperture control and basic autofocus functionality. It's a budget-friendly metal adapter aimed at photographers who want to use existing Canon glass on Sony mirrorless cameras with retained electronic control.
- **Ideal For:** Good for users seeking an inexpensive alternative to Metabones or Commlite because it provides electronic aperture control and basic AF compatibility while costing far less.

### Metabones Canon EF Lens to BMPCC4K T CINE Speed Booster ULTRA 0.71x
```yaml
product: metabones-canon-ef-lens-to-bmpcc4k-t-cine-speed-booster-ultra-0-71x
brand: Metabones
price_gbp: 34.37
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
brand: Metabones
mount_type: Micro Four Thirds (MFT)
lens_mount_type: Canon EF
maximum_aperture: f/0.9
```

- **Price:** £34.37 [^12]
- **Summary:** The Metabones T CINE Speed Booster ULTRA 0.71x adapts Canon EF lenses to the BMPCC4K, reducing focal length by 0.71x and increasing effective aperture by 1 stop to about f/0.9. It provides electronic communication for aperture/AF, a cine-style positive-lock mount, removable Arca-compatible tripod foot, and optics optimized for Blackmagic filter stack thickness, aimed at cinema and hybrid shooters.
- **Ideal For:** Ideal for comparing adapter quality because it offers a cine positive-lock mechanism, electronic lens control, and an optical 0.71x booster (f/0.9 output aperture), representing Metabones' high-end optical and mechanical engineering versus competitors.

### Metabones EF-MFT Mount T Speed Booster ULTRA 0.71x II
```yaml
product: metabones-ef-mft-mount-t-speed-booster-ultra-0-71x-ii
brand: Metabones
price_gbp: 372.8
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
brand: Metabones
mount_type: T mount (Micro Four Thirds)
lens_mount_type: Canon EF
maximum_aperture: f/0.90
optical_elements: 5 elements in 4 groups
```

- **Price:** £372.8 [^13]
- **Summary:** The Metabones EF-MFT T Speed Booster ULTRA 0.71x II is a 0.71x focal reducer for Micro Four Thirds that increases effective aperture (up to f/0.90 with an f/1.2 lens), improves MTF, and supports electronic control for EF lenses. It uses a 5-element/4-group optical design, supports IS and some autofocus on compatible bodies, and includes a removable Arca-compatible tripod foot.
- **Ideal For:** This adapter is ideal for comparing adapter quality because its 5-element/4-group optical design, brass mounting rings, and electronic EF support demonstrate higher-end optics, build materials, and functionality compared with many Commlite and Fotga offerings.

### Metabones EF-X Mount T CINE Speed Booster ULTRA 0.71x II
```yaml
product: metabones-ef-x-mount-t-cine-speed-booster-ultra-0-71x-ii
brand: Metabones
price_gbp: 522.22
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
brand: Metabones
mount_type: Fujifilm X-mount
lens_mount_type: Canon EF
maximum_aperture: f/0.90
optical_elements: 5 elements / 4 groups
```

- **Price:** £522.22 [^14]
- **Summary:** The Metabones EF-X Mount T CINE Speed Booster ULTRA 0.71x II is a focal-reducing adapter that widens field of view and increases maximum aperture by one stop using a 0.71x magnification and a 5-element/4-group optical design with ultra-high index tantalum glass. It supports electronic functions such as PDAF, IS support, T-stop display with supported cinema lenses, and includes a removable Arca-style tripod foot, making it suited for cine and hybrid video workflows. The Mark II adds an improved p
- **Ideal For:** This product suits a comparison of Metabones, Commlite, and Fotga because its 5-element/4-group optical design, PDAF and IS electronic support, and f/0.90 maximum output aperture demonstrate Metabones' higher-end optical engineering and electronic integration compared with typical third-party adapters.

### Metabones MB-EF-E-BT5 (Canon EF to Sony E Mount T Smart Adapter 5th Generation)
```yaml
product: metabones-mb-ef-e-bt5-canon-ef-to-sony-e-mount-t-smart-adapter-5th-generation
brand: Metabones
price_gbp: 298.09
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
brand: Metabones
mount_type: Sony E
lens_mount_type: Canon EF/EF-S
```

- **Price:** £298.09 [^15]
- **Summary:** Fifth-generation Metabones EF-to-E Smart Adapter provides electronic communication between Canon EF/EF-S lenses and Sony E-mount bodies, supporting phase- and contrast-detect AF, aperture control, IBIS control switch, status LED, and a weather-resistant rubber mount gasket. It targets photographers and videographers who need near-native autofocus, EXIF transfer, and lens stabilization support when using Canon glass on Sony cameras.
- **Ideal For:** This adapter suits comparisons of Metabones, Commlite, and Fotga because its supported features-phase- and contrast-detect AF, aperture control from body, IBIS control, and weather-resistant gasket-demonstrate higher-end electronic integration and build quality compared with many competitors.

### Metabones MB_SPEF-E-BT2 EF-E Mount T Speed Booster ULTRA 0.71x II
```yaml
product: metabones-mb-spef-e-bt2-ef-e-mount-t-speed-booster-ultra-0-71x-ii
brand: Metabones
price_gbp: 162.87
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
brand: Metabones
mount_type: EF to Sony E
lens_mount_type: Canon EF
maximum_aperture: Increases maximum aperture by 1 stop
optical_elements: 5 elements in 4 groups
```

- **Price:** £162.87 [^16]
- **Summary:** The Metabones MB_SPEF-E-BT2 Speed Booster ULTRA 0.71x II is an optical adapter that converts Canon EF lenses to Sony E-mount while widening the field of view (0.71x) and increasing effective maximum aperture by one stop. It uses a 5-element/4-group design with ultra-high index tantalum-based glass, supports electronic aperture control, EXIF, and has a detachable tripod foot; suited for photographers and videographers wanting faster effective apertures and wider coverage on E-mount bodies. 
- **Ideal For:** Ideal for comparing Metabones to Commlite and Fotga because its patented 5-element/4-group optical design, EXIF transmission, electronic aperture control, and precision-machined brass mounts demonstrate higher optical and electronic integration than many third-party adapters.

### Metabones MB_SPEF-E-BT Smart Adapter EF to Sony E (with tripod foot)
```yaml
product: metabones-mb-spef-e-bt-smart-adapter-ef-to-sony-e-with-tripod-foot
brand: Metabones
price_gbp: 298.09
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
brand: Metabones
mount_type: T mount (Micro Four Thirds)
lens_mount_type: Canon EF
maximum_aperture: f/0.90
optical_elements: 5 elements in 4 groups
```

- **Price:** £298.09 [^17]
- **Summary:** The Metabones EF-MFT T Speed Booster ULTRA 0.71x II is a 0.71x focal reducer for Micro Four Thirds that increases effective aperture (up to f/0.90 with an f/1.2 lens), improves MTF, and supports electronic control for EF lenses. It uses a 5-element/4-group optical design, supports IS and some autofocus on compatible bodies, and includes a removable Arca-compatible tripod foot.
- **Ideal For:** This adapter is ideal for comparing adapter quality because its 5-element/4-group optical design, brass mounting rings, and electronic EF support demonstrate higher-end optics, build materials, and functionality compared with many Commlite and Fotga offerings.

### Metabones Speed Booster ULTRA Canon EF to Sony E (MB_SPEF-E-BT3)
```yaml
product: metabones-speed-booster-ultra-canon-ef-to-sony-e-mb-spef-e-bt3
brand: Metabones
price_gbp: 506.01
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
brand: Metabones
mount_type: Canon EF to Sony E
lens_mount_type: Canon EF (lens) / Sony E (camera)
maximum_aperture: f/0.9 (with f/1.2 lens)
optical_elements: 5 elements in 4 groups
```

- **Price:** £506.01 [^18]
- **Summary:** The Metabones T CINE Speed Booster ULTRA (MB_SPEF-E-BT3) is a 0.71x optical converter that increases lens speed by one stop, improves MTF, and reduces vignetting using a patented 5-element/4-group tantalum-based glass design. It features a cine-style positive-lock EF mount, EXIF storage for manual lenses, IBIS controls, and is aimed at professional stills and cinema users who want to mount Canon EF lenses on Sony E bodies.
- **Ideal For:** This product is ideal for comparing Metabones with Commlite and Fotga because its documented 5-element/4-group tantalum-based optics, cine positive-lock mount, and EXIF/IBIS support demonstrate higher optical design and mechanical build quality than typical third-party adapters.

### Metabones Speed Booster ULTRA Nikon G to Sony E
```yaml
product: metabones-speed-booster-ultra-nikon-g-to-sony-e
brand: Metabones
price_gbp: 357.86
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
brand: Metabones
mount_type: Sony E
lens_mount_type: Nikon F (G)
maximum_aperture: f/0.90
optical_elements: 5 elements in 4 groups
```

- **Price:** £357.86 [^19]
- **Summary:** The Metabones Speed Booster ULTRA (MB_SPNFG-E-BM2) is a 0.71x focal reducer that increases angle of view and gives ~1-stop brighter effective aperture, using a 5-element/4-group tantalum-based optical design to reduce vignetting and improve corner sharpness. It is built from brass with a detachable Arca-type tripod foot and a clickless 8-stop aperture ring; it is manual-only with no electronic communication. It suits APS-C Sony E-mount cameras for users who want full-frame lens coverage and a fa
- **Ideal For:** This product demonstrates Metabones' higher-end optical design and build (5 elements/4 groups, f/0.90 output aperture, brass construction) compared with many Commlite and Fotga adapters that typically lack focal-reducing optics and brass precision, making Metabones superior for optical performance and durability.

---
## References & Sources
[^1]: KEH (used/graded listings), accessed 2026-06-13. https://www.keh.com/shop/adapter-canon-eos-ef-ef-s-to-sony-e-mount-metabones-t-smart-adapter-mark-iv-with-inner-flocking-1.html
[^2]: Roxsen (alternate listing), accessed 2026-06-13. https://roxsenglobal.myshopify.com/products/cm-aef-mft
[^3]: Roberts Camera, accessed 2026-06-13. https://robertscamera.com/canon-ef-lens-to-sony-e-mount-t-smart-adapter-mark-v
[^4]: Marcotec, accessed 2026-06-13. https://www.marcotec-shop.com/en/metabones-canon-ef-lens-to-sony-e-mount-t-speed-booster-ultra-0-71x-ii.html
[^5]: KEH, accessed 2026-06-13. https://www.keh.com/shop/adapter-canon-eos-ef-lenses-to-sony-e-mount-fotga.html
[^6]: B&H Photo Video (product page, no longer available), accessed 2026-06-13. https://www.bhphotovideo.com/c/product/1504270-REG/commlite_cm_ef_e_hs_high_speed_af_lens.html
[^7]: B&H Photo Video, accessed 2026-06-13. https://www.bhphotovideo.com/c/product/1398241-REG/commlite_cm_ef_e_hs_canon_ef_to.html
[^8]: Reef Photo & Video, accessed 2026-06-13. https://reefphoto.com/products/metabones-t-speed-booster-ultra-0-71x-adapter-for-canon-ef-mount-lens-to-micro-four-thirds-mount-camera
[^9]: Analog Senses (review page listing retail price), accessed 2026-06-13. http://www.analogsenses.com/2016/03/02/commlite-ef-nex-adapter-review
[^10]: Commlite (manufacturer page), accessed 2026-06-13. https://www.commlite.com/product/9.html
[^11]: Globalmediapro, accessed 2026-06-13. https://www.globalmediapro.com/dp/A2LLM9/Commlite-CM-EF-MFT-EF-EF-S-Lens-to-Micro-Four-Thirds-Camera-Mount-Adapter/
[^12]: Lensrentals (sale page shows rental but lists product), accessed 2026-06-13. https://www.lensrentals.com/rent/metabones-canon-ef-lens-to-bmpcc4k-speed-booster-t-ultra
[^13]: B&H Photo Video, accessed 2026-06-13. https://www.bhphotovideo.com/c/product/1158844-REG/metabones_mb_spef_m43_bt4_canon_ef_micro_4_3_t.html
[^14]: Metabones Speed Booster Product Page, accessed 2026-06-13. https://www.metabones.com/products/?c=speed-booster
[^15]: Ken Rockwell (retailer link suggestion), accessed 2026-06-13. https://www.kenrockwell.com/tech/metabones/ef-e-smart-adapter-t-mark-v.htm
[^16]: KEH, accessed 2026-06-13. https://www.keh.com/shop/adapter-canon-eos-mount-lens-to-sony-e-mount-body-t-speed-booster-ultra-0-71x-with-tripod-mount-metabones-1.html
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