This Desmond DAC-50CAM Bi-Directional QR Clamp for Arca-Type Platesfrom Desmond DAC-50CAM Bi-Directional QR Clamp for Arca-Type Platesis a square quick release clamp that allows a 50mm square Arca-type quick release plate to have a 90° orientation shift for quickly repositioning a camera.

The base of this clamp features a removable 38 x 50mm dovetailed baseplate that is compatible with Arca-type and Manfrotto quick release clamps, allowing it to be quickly added to an existing quick release configuration. The 38 x 50mm plate can be removed, allowing the clamp to mounted directly using the threaded 3/8"-16 mount.

NOTE: This quick release clamp DOES NOT include a quick release plate.

Arca-Type Dovetail Compatible QR Clamp    Removable Arca-/Manfrotto-Type QR Base    38 x 50mm Removable Dovetail Base    Square Shape for Bi-Directional Mounting    Bubble Level    3/4"-16 Base Mount with 1/4"-20 Bushing    Precision CNC-Machined Aluminum    Width with Knob and Bubble Level: 3.5"

Related Questions and Answers

Q: 1. Do I understand correctly that this clamp's bottom is A/S compatible and can be inserted into another A/S clamp to change directions by 90 degrees?

A: Yes this clamp can be inserted into another Arca type clamp while accepting an Arca type plate on the top.

Q: 2. Anyone knows what is the twist locking mechanism when mounting on a manfrotto ball head? It looks to me that it may twist, as the plate has a groove and the ball head leaver has a groove also.

A: I would definitely recommend that you also purchase the Desmond DBAD Female to Male Boss Adapter, available from B and H, which is quite inexpensive. It has a ridge on one side which fits in the groove on the underside of the Desmond quick release clamp, and a ridge on the other side which fits in the groove on the Manfrotto ball head lever. The Boss Adapter keeps the quick release camp from turning, and holds it solidly in place. The Boss Adapter also comes with a hex key, and the proper length of hex screw to attach the Desmond QR clamp to the Manfrotto ballhead. I used this combination to convert a Manfrotto 494RC2 ballhead, and a 496RC2 ballhead, and everything works perfectly.

Q: 3. Does the middle mounting hole have threads on it?

A: The middle hole does have thread. That is how it attaches to my monopod.

Q: 4. Is the knob also made out of aluminum? or is it plastic? other? Thank you.

A: The knob is plastic.Hard plastic very sturdy.This is an excellent clamp.I use it to fasten my Black rapid strap to my L bracket.

Q: 5. Does clamp include 1/4"-20 screw?

A: There is no 1/4"-20 screw included.

Q: 6. Will this clamp accept a Sirui TY-70 plate? The Sirui plates are wider than standard

A: Yes, the Sirui TY-70 plate can fit the DAC-38.

Q: 7. What is the load capacity?

A: This has a Load Capacity of 44 lbs / 20kg.

Q: 8. Can this clamp be mounted flush to broad flush surface or will the knob impede that kind of mounting? I guess another way of asking the question is does the knob protrude below the bottom of the clamp?

A: No, it cant, ...yes, the knob protrudes below the bottom of the clamp

Q: 9. Do I need a screw to install?

A: The Desmond DAC-100B 100mm Skeleton Clamp with Removable Level has a 3/8"-16 female socket and includes a 1/4"-20 reducing bushing adapter. So it will fit on any tripod screw.

Q: 10. What is the maximum load the Kirk QRC-1 is designed/able to hold securely? Can I attach a Nikon D4 with a 70-200/2.8 lens to it?

A: I haven't had the specific configuration you have. I used it for a Nikon D750 with a 200-500 f5.6 without any problem.