Its main purpose is to enable a quick release clamp to sit upon and be clamped by another QR clamp, enabling the user to change the orientation at will by 90 degrees.
This proves helpful when someone would like to mount a camera on a Gimbal head, as it is illustrated later on, but this not the only application.
Packaging & Contents
|The Sunwayfoto GHA-01 Bi-Directional Adapter plate comes shrink wrapped in the usual by now Sunwayfoto recycled-carton box. A large white label shows the content photo, model and main specification.|
The Bi-directional Adapter Plate
|Total Length of 2 Bosses:||20.6 mm|
|GHA-01 is CNC machined from aluminium, finely finished without any hard edges and is hard coat anodized in a satin black color. It comes together with a flat-head 1/4"-20 hex screw and a 4mm Allen hex key.|
Mounting the Plate
|All you need to attach the plate, via its 1/4"-20 threaded top hole, under a QR Clamp, is the flat 1/4"-20 hex screw and Allen hex key, which come together with the plate anyway. The Sunwayfoto DDH-02 compact Panning Clamp chosen for the illustration above, lacks any bottom mounting holes|
|Insert the flat-head 1/4"-20 screw in the QR clamp center hole from the top, tighten with the Allen hex key and you are done.|
Using the Plate
In order to illustrate the ability of changing the orientation of fixed QR clamp, as is in 99% of the cases on a Gimbal head, I have chosen my version of a Heavy Duty HDR Multi-Row Panorama Head equipped with Sunwayfoto DDP-64S Panoramic Indexing Rotator as vertical rotator and a custom Cradle Clamp so don't look for similarities with known brands. :)
Excellent machining, finishing and build quality.
Very tight tolerances between the plate bosses and Sunwayfoto QR clamps.
Adds 11.5 mm of height between the two quick release clamps.
A little heavier than similar solution reviewed in the past.
Although it is an accessory with a rather specialized use, it proves very useful when someone wants to change a clamp orientation otherwise impossible, like on a Gimbal head.
On the other hand it is a must have device, as a bottom Arca mount for the Sunwayfoto DDH-02 panning clamp, if you want to use it sporadically on top of an existing Arca-style QR clamp.
It may prove a smart solution in any case you would like to change a QR clamp orientation or add a 3/8"-16 thread to an un-threaded QR clamp.
The GHA-01 Bi-directional Adapter Plate presented in this article is a complementary copy, kindly offered by Sunwayfoto, for evaluation and review.
I hope you found the article and ideas useful, thank you for viewing.
All Photos & Photosynths: © 2013 S.C.Vlachos
Price & Availability:
The current retail price for the GHA-01 Plate is US$ 29.50 (+Shipping where applicable) and is available from Amazon or from eBay worldwide.
Update July 2014
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Sunwayfoto DDH-02 compact Panning Clamp Review
Sunwayfoto DDP-64SX Panoramic Indexing Rotator Review
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