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Amazon.com : CAMVATE Quick Release Base Plate Compatible with Manfrotto 501/504/ 577/701 Tripod Standard Accessory - 1419 : Electronics
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CAMVATE Quick Release Manfrotto Baseplate (Horizontally Mounted) & 15mm LWS Dual Rod Supporting System
Manfrotto 500PLONG Video Camera Plate 500PLONG B&H Photo Video
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