LA-EA4r - Minolta/Sony A-mount LA-EA4 adapter Upgrade kit (FW v09)

  • $199.00
    Unit price per 
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The latest firmware for LA-EA4r is v09.

If you are using an older version of firmware and want to download the latest firmware upgrade package, please download the updater here: (Windows PC Only)

Tip: How to track your package 


This product has nothing to do with Sony and the modified LA-EA4 adapter will lose warranty. Improper modification or use may damage your equipment, and the product may not be able to ensure all supported lenses in your hand to be working like they will on native bodies.  The risks shall be at your end. Please be aware of all the risks before you place the order.

Also please read our manual ( provided online) carefully in advance to make sure you fully understand how it works.

This product only contains the circuit board for replacement, you need the original LA-EA4 lens adapter (sold separately) for modification.

The item can be returned only with the package seal unopened. 

Please beware the customs tax, if any, is not included.


MonsterAdapter LA-EA4r Upgrade Kit (EA4r for short) is specifically designed to drive old Minolta/Sony A-mount body-driven autofocus lens on the Sony E-mount mirrorless camera, allowing hundreds of focus points and advanced autofocus features such as human and animal eye AF, whatever is provided by the camera.

You will need to install the EA4r circuit board provided in the package into your Sony LA-EA4 adapter, replacing the counterpart in it. The complete installation guide in both written and video will be provided for your reference.


  1. Auto focus for video shooting is not supported.

So why buy this product and modify your LA-EA4 into the MonsterAdapter LA-EA4r?

  1. It brings benefits of Sony's latest  E-mount cameras to your classic A-mount screw drive AF lenses, making their revival with better experiences, which include:
    -The retro rendering from 1980’s vintage lenses.
    -More light and more sharpness with the translucent mirror removed.

  2. High-precision AF by directly using the on-sensor focus algorithm from the body, no AF micro adjustment required any more.

  3. Ultra wide AF points coverage across the frame (depends on the camera) instead of the traditional 15 points of original LA-EA4 adapter. (The Minolta/Sony AF 500mm f8 Reflex lens can expand from the single central AF point to about 80% of screen AF points coverage, it's revolutionary!)

With our product, you can enjoy features the latest mirrorless cameras can offer with your old beloved A-mount glasses.

It's much easier and more fun to shoot portraits with human or animal Eye AF tracking. Tack sharp right on the eye!!!

Fully Restorable Modification

You can easily and fully restore to the original LA-EA4 after the modification as long as you well preserve the removed board and mirror.

  LA-EA4r (Modified) LA-EA4 (Original) LA-EA5
Focus Technology On Sensor PDAF PDAF Module On Sensor PDAF
Focus Points Hundreds *1 15 Points Hundreds *1
Focus Points Coverage Full Screen *1 Center Area Full Screen *1
Translucent Mirror Required No Yes No
Human/Animal Eye Tracking Yes Limited Yes
Screw Driven Lenses supported Yes Yes Yes *2
SSM/SAM Lenses Supported Yes Yes Yes
A-mount teleconverter supported Yes No No
For AF 500mm f8 Reflex  80% of screen coverage Center only Center only
Video AF No Limited No

*1 Depending on the camera model, the specific number will vary
*2 Only works with A1、A7R4、A6600

Supported Camera Models


LA-EA4r (Modified)
LA-EA4 (Original) LA-EA5
Alpha 7 II Y Y MF
Alpha 7 III Y Y MF
Alpha 7 IV Y MF Y
Alpha 7R II Y Y MF
Alpha 7R III Y Y MF
Alpha 7R IIIA Y Y MF
Alpha 7R IV Y Y Y
Alpha 7R IVA Y Y Y
Alpha 7S III Y MF MF
Alpha 7C Y Y MF
Alpha 9 Y Y MF
Alpha 9 II Y Y MF
Alpha 1 Y MF Y
Alpha 6100 Y Y MF
Alpha 6300 Y Y MF
Alpha 6400 Y Y MF
Alpha 6500 Y Y MF
Alpha 6600 Y Y Y
Older Models:
Alpha 7 MF Y MF
Alpha 7R MF Y MF
Alpha 7S MF Y MF
Alpha 7S II MF Y MF
Alpha 3000 MF Y MF
Alpha 3500 MF Y MF
Alpha 5000 MF Y MF
Alpha 5100 MF Y MF
Alpha 6000 MF Y MF
All NEX cameras MF Y MF

*1 "Y" stands for auto focus enabled, "MF" stands for manual focus only.
*2 Please aware the above table compares the compatibility of screwdriver lenses, not including SSM/SAM lenses.

Click here for detailed supported camera list

    Supported Lenses(Firmware v09):

    Prime Lenses

    • Minolta/Sony AF 16mm F2.8 Fisheye
    • Minolta/Sony AF 20mm F2.8
    • Carl Zeiss Distagon T* 24mm F2 ZA SSM
    • Minolta AF 24mm F2.8
    • Minolta AF 28mm F2
    • Minolta/Sony AF 28mm F2.8
    • Minolta AF 35mm F1.4
    • Minolta/Sony AF 35mm F1.4 G
    • Minolta AF 35mm F2.0
    • Carl Zeiss Planar T* 50mm F1.4 ZA SSM
    • Minolta/Sony AF 50mm F1.4
    • Minolta AF 50mm F1.7
    • Minolta/Sony AF 50mm F2.8 Macro (D)
    • Minolta AF 50mm F3.5 Macro
    • Minolta AF 85mm F1.4 and G/GD/GD Limited
    • Sony Carl Zeiss Planar T* 85mm F1.4 ZA
    • Minolta AF 100mm F2.0
    • Minolta/Sony AF 100mm F2.8 Macro (D)
    • Minolta AF 100mm F2.8 Soft Focus
    • Sony Carl Zeiss Sonnar T* 135mm F1.8 ZA
    • Minolta AF 135mm F2.8
    • Minolta AF 200mm F2.8 and APO/HS
    • Minolta AF 200mm F4 Macro APO G
    • Minolta AF 300mm F2.8 HS-APO G
    • Minolta AF 300mm F4 HS-APO G
    • Minolta AF 400mm F4.5 HS-APO G
    • Minolta/Sony AF 500mm F8 Reflex

    Zoom Lenses

    • (Konica)Minolta/Sony AF DT 11-18mm F4.5-5.6 (D)
    • Sony Carl Zeiss Vario-Sonnar T* DT 16-80mm F3.5-4.5 ZA
    • Sony DT 16-105mm F3.5-5.6
    • Konica Minolta AF 17-35mm F2.8-4 D
    • Minolta AF 17-35mm F3.5 G
    • Minolta AF 20-35mm F3.5-4.5
    • Minolta AF 24-85mm F3.5-4.5
    • Minolta AF 24-105mm F3.5-4.5
    • Minolta AF 28-70mm F2.8 G
    • (Konica)Minolta AF 28-75mm F2.8
    • Minolta AF 28-85mm F3.5-4.5
    • Minolta AF 28-135mm F4-4.5
    • Minolta AF 35-70mm F4
    • Minolta AF 70-210mm F3.5-4.5
    • Minolta AF 70-210mm F4 Macro
    • Minolta AF 70-210mm F4.5-5.6
    • Minolta/Sony AF 75-300mm F4.5-5.6
    • Minolta AF 80-200mm F2.8 HS-APO G
    • Minolta AF 100-200mm F4.5
    • Minolta AF 100-300mm F4.5-5.6 APO
    • Minolta AF 100-300mm F4.5-5.6 APO (D)
    • Minolta AF 100-400mm F4.5-6.7 APO
    • Minolta AF 3x-1x Macro

    Third Party Lenses

    • Tamron 10-24mm F3.5-4.5 SP Di
    • Tamron 20-40mm F2.7-3.5 SP Aspherical IF
    • Tamron SP AF 28-75mm F2.8 XR Di LD Aspherical [IF] Macro
    • Tamron AF 28-300mm F3.5-6.3 XR Di LD Aspherical [IF] Macro
    • Sigma AF 24mm F2.8
    • Sigma 30mm F1.4 EX DC
    • Sigma AF 105mm F2.8 EX [DG] Macro
    • Sigma AF 180mm f2.8 Macro
    • Tokina AT-X Pro DX 11-16mm F2.8
    • Tokina AT-X AF 17mm F3.5
    • Tokina 19-35mm F3.5-4.5
    • Tokina 11-16mm F2.8
    For lenses not in the list, the focus performance cannot be guaranteed to be optimal.


    Video(muted) for how to install MonsterAdapter LA-EA4r by Gary Friedman


    How to enable Manual Focus

    IMPORTANT NOTICE: Do not hot swap A mount lenses while camera still on !


    Approximate 5g(board only), 25g(package)

    Included items:
    • Plastic case
    • Plastic bags x 2
    • LA-EA4r Replacement board for LA-EA4 adapter x 1

    1 Year

    Shenzhen Muohuan Optics-electrical technology Co., Ltd.

    Shenzhen, China