February 20, 2015

Manfrotto MHXPRO-3W Arca Compatible Conversion Set from Hejnar PHOTO

Hejnar Photo MHXPRO-3W Conversion Set overview
Hejnar PHOTO line of Manfrotto® conversion adapters and custom quick release clamps is further enriched with one more Arca-Swiss® compatible conversion set.
The conversion set is addressed to the new Manfrotto MHXPRO 3 Way Head with friction control, featuring the classic RC2 Quick Release System.

The set contains a custom adapter plate and the Hejnar PHOTO F62b Arca-Swiss® compatible Quick Release clamp.

By removing the current RC2 QR mechanism from the 3Way head, you can convert the head to take advantage of the vast number of Arca-Swiss® compatible L brackets, rails, plates and accessories, otherwise not possible with the RC2 QR system.

The Conversion Set
Besides the custom adapter plate and the Hejnar F62b Quick Release clamp, the set contains all necessary screws and tools for the conversion.

Hejnar Photo MHXPRO-3W Conversion Set
Hejnar Photo MHXPRO-3W Conversion Set Contents

Conversion Set Contents:
  • One adapter plate.
  • One 2.375 inch clamp ( Model F62b)
  • One 1/4-20 x 3/4 flat head screw.
  • One 1/4-20 x 7/8 flat head screw
  • One 1/4-20 x 3/4 button screw
  • Two 10-32 screws
  • Allen Hex keys for ¼-20 screw and 10-32 screw
  • Torx key for original safety lever screw

The Conversion Plate

Manufacturer Specification:
Model:MHXPRO-3W
Length:2.65" (67.3 mm)
Width:2.375" (60.3 mm)
Thickness:5/8" (15.9 mm)
Tapped holes:Three 1/4"-20 and Four 10-32
Material:Precision C.N.C. machined 6061-T6 Aluminium
Color:Black hard coat anodized
Made in :USA

Hejnar Photo MHXPRO-3W Conversion Plate
The conversion plate has two levels. The lower level is inserted into the socket of the RC2 plate and the top platform accepts the F62b QR clamp. There is a total of three tapped 1/4"-20 holes, two for mounting the conversion plate onto the 3W head and the third corresponds to the center hole of the clamp.
There are also four 10-32 tapped holes placed around the central 1/4-20 hole in 90 degree increments and a distance of 30 mm across each other. These smaller holes correspond to the side holes of the F62b QR clamp enabling its alignment and reorientation on the head.

The F62b Quick Release Clamp

Manufacturer Specification:
Model:F62b
Jaw Length:2.375" (60 mm)
Weight:103 gr (3.6 oz)
Countersunk/threaded holes:Three (1 x 3/8"-16 center hole and
2 x 1/4"-20 outside 30 mm apart)
Safety Stop Relief Grooves:Two
Long Captive Screw Knob:Stops at maximum opening
Material:Precision C.N.C. machined 6061-T6 Aluminium
Color:Black hard coat anodized
Hardware:Stainless Steel
Made in :USA

Following the norm of all Hejnar QR clamps, the F62b is compatible with Kirk®, R.R.S.®, Arca-Swiss®, and many other Arca style Quick Release plates and rails.
As an add-on unit, it can play different roles being used independently, i.e. mounted on another ball head and/or other equipment at will.

Hejnar Photo updated F62b QR clamp
The clamp included in the conversion set is the updated classic Hejnar F62b where "b" at the end of the model name denotes the long black screw knob. More about the Hejnar Photo clamps you may read in the Updated Hejnar PHOTO Quick Release Clamps Preview



The Conversion Process
Is a quite simple task, completely reversible, since it only involves unscrewing and removal of certain parts of the Rapid Connect RC2 Adapter and consequently their replacement by the Conversion Plate, on top of which the F62b QR Clamp is further attached by screws.

Hejnar Photo Conversion Plate installed on Manfrotto MHXPRO-3W
Hejnar Photo Conversion Plate installed on Manfrotto MHXPRO-3W via two of the included 1/4"-20 screws, the shorter flat-head and the button screw.

The end user may decide on the orientation of the F62b QR Clamp at will, since it can be screwed in any of four possible position, incremented by 90°.

Hejnar Photo Conversion set w/ F62b QR clamp on Manfrotto MHXPRO-3W
Pictured above is the Hejnar Photo F62b QR clamp siting conveniently on top of the Manfrotto® MHXPRO 3Way friction control head, with the screw knob pointing backwards.
According to Hejnar Photo the choice of QR Clamp size or screw knob color/size is up to the user who should contact Hejnar Photo prior to concluding the transaction on line.

I hope you found the article useful, thank you for viewing.
All Photos used by permission: © 2015 Chris Hejnar / Hejnar PHOTO

Price and Availability:
Current price for any of the MHXPRO-3W Conversion Set is US$ 112.00 (+Shipping where applicable) and is available from the Hejnar Photo online Store.

If you are interested in the product, do check the Recommended Sellers page for a valid Hejnar Photo discount coupon before ordering.

Referenced Articles:
Updated Hejnar PHOTO Quick Release Clamps Preview

Relevant Articles:
Manfrotto 324/327/322 RC2 Arca Compatible Conversion set from Hejnar PHOTO
New & Unique Hejnar PHOTO Arca Compatible QR Clamp for Manfrotto 496 / 498 and 054 Ball Heads
New Arca Compatible Conversion for Manfrotto 400 Geared Head by Hejnar PHOTO

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