Camera Screw Size: The Key Difference
The most straightforward difference between the QS-40 and QS-36 is the camera screw size. The QS-40 uses a 3/8" camera screw, while the QS-36 uses a 1/4" camera screw. This single specification determines which plate can attach to your camera or lens foot. If your camera has a standard 1/4" tripod socket, the QS-36 is the natural fit. For cameras or accessories with a 3/8" thread, the QS-40 is the correct choice.
Quick Facts: QS-40 and QS-36
- QS-40: QS-40 is a proprietary Vanguard quick shoe with 3/8" camera screw and pin. The 3/8" screw is less common than 1/4", so the QS-40 targets specific Vanguard heads and tripod models that use this larger thread.
QS-40 - QS-36: QS-36 is a quick shoe with 1/4" camera screw and pin for Vanguard tripods. The 1/4" screw is the industry standard for most cameras and lenses, making the QS-36 compatible with a wider range of gear out of the box.
QS-36
Compatibility: Which Tripod Heads and Models Work?
Each plate is designed for a specific set of Vanguard tripod heads and models. The QS-40 works with the PH-35, PH-50, PH-55 heads, as well as SBH-100, SBH-250, SBH-30, and SBH-50 models. The QS-36 supports a much larger list, including many Alta, Espod, MG, MH, MS, MT, PH, SBH, and VT series tripods. If you already own a Vanguard tripod, check the model number against each plate's compatibility list to confirm which plate will attach securely.
QS-40 vs QS-36: Side-by-Side
- Camera Screw Size: QS-40: 3/8". QS-36: 1/4". The QS-36 matches most cameras; the QS-40 is for 3/8" threaded gear.
- Compatible Tripod Models: QS-40: PH-35 Head, PH-50 Head, PH-55 Head, SBH-100, SBH-250, SBH-30, SBH-50. QS-36: Over 50 models including Alta, Espod, MG, MH, MS, MT, PH, SBH, and VT series.
- Price: QS-40: USD 13.20 (catalog comparison price USD 20.00). QS-36: USD 9.60 (catalog comparison price USD 15.00). The QS-36 is more affordable.
Choosing the Right Plate for Your Setup
Start by checking your camera's tripod socket thread size. Most DSLR and mirrorless cameras use a 1/4" thread, so the QS-36 is likely the correct choice. If you have a camera or accessory with a 3/8" thread, or if you plan to use a Vanguard head such as the PH-35 or PH-50, the QS-40 is the plate you need. Also verify that your specific Vanguard tripod model appears on the compatibility list for the plate you choose. The QS-36 supports many more models, but if your tripod uses one of the heads listed for the QS-40, that plate is required.
What the Supplied Information Doesn't Tell You
The catalog records do not confirm whether these plates are compatible with Arca-style dovetails or other quick-release standards. Both are described as quick shoes with a pin, but no details about the pin size or release mechanism are provided. If you need a plate that works with an Arca clamp or a specific quick-release system, you may need to check with the manufacturer or test the plate with your gear. Similarly, no installation steps or torque specifications are given, so you should use standard care when tightening the screw to avoid cross-threading.
