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๐ฅ Elevate your grip, switch faster, shoot smarter.
The SmallRig Camera Baseplate 3666 is a precision-engineered accessory tailored for Sony Alpha 7 IV and V series cameras. Crafted from durable aluminum alloy and stainless steel, it features a genuine leather grip for enhanced comfort and control. Its Arca-compatible quick release plate allows seamless switching between tripod, stabilizer, and handheld modes. Multiple mounting points expand your rig with essential accessories, while built-in protective elements prevent scratches and deflection. Lightweight yet robust, it includes a magnetic wrench for effortless assembly, making it an indispensable upgrade for professional and enthusiast photographers seeking ergonomic excellence and operational efficiency.





| ASIN | B09P9ZVDVP |
| Audio Recording | No |
| Best Sellers Rank | #104,227 in Electronics ( See Top 100 in Electronics ) #341 in Camcorder Handheld Stabilizers |
| Brand | SmallRig |
| Color | Black |
| Colour | Black |
| Compatible Devices | Sony Alpha 7R V, 7 IV |
| Compatible devices | Sony Alpha 7R V, 7 IV |
| Customer Reviews | 4.7 out of 5 stars 188 Reviews |
| Exposure Control Type | Manual (M) |
| File Format | JPEG, PNG, RAW |
| Folded Size | 132mm (L) x 65mm (W) x 12.5mm (H) |
| Folded size | 132mm (L) x 65mm (W) x 12.5mm (H) |
| Iso Range | 100-32000 (expandable to 50-102400) |
| Item Dimensions D x W x H | 1.3D x 6.5W x 1.3H centimeters |
| Item Weight | 80 Grams |
| Item weight | 80 Grams |
| Light Sensitivity | ISO 100-32000 (for Sony Alpha 7R V) / ISO 100-51200 (for Sony Alpha 7 IV) |
| Manufacturer | SMALLRIG |
| Manufacturer Part Number | 3666-SR |
| Maximum Weight Recommendation | 135 Grams |
| Media Type | ProductImage |
| Model Name | SmallRig Baseplate 3666 |
| Model Number | 3666-SR |
| Product dimensions | 1.3D x 6.5W x 1.3H centimeters |
| Unit Count | 1 Count |
| Video Capture Format | MP4 |
| Video Capture Resolution | 3840 x 2160 |
| Viewfinder Type | LCD screen |
| Water Resistance Level | Not Water Resistant |
M**.
Great addition for a great camera
I have this on my Sony A7 IV. I have quite big hands so have found the A7 a bit hard to hold and use. This bracket does add a bit of weight but makes using the camera a much better experience. It allows me to feel that I am really holding the camera and stops my hands from trying to cramp up around the camera body. If you find that your hands are a bit cramped when using your camera, then this is for you. Also makes it easier when putting on a tripod as it has that functionality built in. Highly recommended.
A**T
Quality Product
Perfect fit Good quality
P**J
Beautifully made base plate for the Sony A 7RV and A 7IV.
Superb base plate with built in ARCA tripod mount for our Sony A 7RV and A 7IV cameras. I purchased two of these. Very well made with trim to match the camera that protects the bottom of the camera and provides an ARCA tripod mount as well standard threaded sockets for other accessories. Fit and finish is superb and it is very easy to fit. A handy key which is magnetically attached to the underside of the plate is used to secure the camera and mount together. Once mounted it looks like an integral part of the camera. It locates without any adjustment and fits perfectly. One thing to note is that for access to the A 7IV battery door, there is a part of the base plate that swings aside. It will need to be closed when the battery door is closed. The A7RV does not need this for full access. There are no instructions so we had to work this out for ourselves. It is a minor inconvenience that you should note but it is well executed and does not look as if it will wear out over time. Pros: 1. Extremely well made. 2. Fits exactly. 3. Looks as if it was always part of the camera with matching camera leatherette finish around the edges. 4. Provides access to the battery (note the base plate piece that swings aside for the A 7IV). 5. Provides ARCA dovetail for tripods and machined sockets for other peripherals or tripod mounts. 6. Protects the bottom of the camera. 7. Very light weight. Cons: 1. Part of the plate swings aside to gain access to the Sony A7IV battery door that may not be obvious. Summary: Thoroughly recommended as a way to protect and add functionality to your Sony A 7RV and A 7IV.
L**Y
rock solid install, NO gap/wiggling, superb extension to sony a7 IV
SmallRig Baseplate for Sony Alpha 7 IV Camera, with QR Plate (for Arca Type) Quick Switching Between Tripod and Stabilizer (for DJI RS 2/RSC 2), w Cold Shoe Mount, Base Cold Shoe Mount Bracket - 3666B This is a base attachment the extends the form factor of the camera for a larger grip. Make no mistake it will increase the overall weight of the camera significantly because its a hefty metal part. The benefit for me outweighs the additional weight. The unit is made like a tank. Rock solid all-metal build. Sharp black powder coat. Excellent design to follow the curve of the camera to make it look "a part of the" body. Silicone base side softly mates with the body so as to not scratch the base surface. Battery door is openable with the plate still installed --- before you panic and return the unit due to battery door not opening: just open the gate (see pic) for adding extra clearance for the battery door to pop out. The reason for this is becasue a7 IV has almost NO clearance / edge with the new design so it is basically impossible to design this rig without this gate.. it is well designed. There is a magnetic flat screw under the plate that you can use to unscrew the smallrig anytime. This is super convenient. The magnet is strong enough for the screw to stay stuck to body. Very well designed product -- as it is with basically all smallrig products i've purchased. 1. i can freely place the cam on any surface (like concrete) without worrying about cam being scratched up. 2. arc plate means easy on/off on tripods/monopods without needing to attach anything else. 3. longer body gives me a lot more confidence holding the camera with that extra ~1cm taller body 4. using the plate's 1/4" screw rather than in-body 1/4" screw reduces any wear/tear of it 5. cold shoe under body for anything you want to rig up I'm not actually sure why there are some reviews here saying there are "gaps" and the smallrig "wiggles". I can only gues that maybe those people stripped their in-body 1/4" screw and things arent sitting properly? I can guarantee you this smallrig fits perfectly and ZERO gap/budging. ZERO wiggling. It is rock solid for me on my sony a7-4 body. Hope this helps.
R**A
Perfect
This adds 3 great things for a low price. It gives the all important "pinky grip" on the a7iv which makes it ergonomically so much better without adding much weight. Second, it takes away the need for a tripod mount baseplate, which makes the camera sit awkwardly. This is arca Swiss compatible and allows the camera to sit evenly. Finally it has little slots for peak design anchors or the like. Getting these three enhancements for the price is a no brainer. Note - the reviews which claim this doesn't fit flush are out to lunch. It fits flush and tight. If it doesn't fit on your camera that's a skill issue.
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