September 25, 2017

Hejnar Photo H127 Replacement Foot for Canon EF 300 f/2.8L EF 500 f/4L IS and EF 200-400 f/4L Lenses

Hejnar Photo H127 Replacement Foot overview

One more lens Foot Replacement from Chris Hejnar was just introduced. It's the Hejnar H127 custom replacement foot for the new generation Canon high end lenses the EF 300 f/2.8 L IS II USM, the EF 500 mm f/4 L IS II USM, and the zoom EF 200-400 f/4 IS USM with 1.4 Extender.

The Hejnar H127 Replacement Foot carries design characteristics from the Hejnar 113 with its curved upper but also inherits from the Hejnar H118 and H121 with their rear elongated dovetail.

The H127 Replacement Foot

Manufacturer Specification:
Length:15.70 cm (6.18")
Width:4.16 cm (1.64")
Height:3.99 cm (1.4")
Tapped Holes:1/4"-20 & 3/8"-16
Safety Stop Screws:2 x M3
Weight:176 gr (6.2 oz)
Color:Black hard coat anodized
Material:C.N.C. machined 6061-T6 Aluminium
Made in :USA

Much like its siblings each foot is precision CNC machined out of a solid Aluminium block with a curved and textured top. The curved top acts as a handy grip in order to facilitate carrying the heavy telephoto lenses, while the textured surface and the curved lip make it difficult to slip off of your hands.
The optional mounting screw holes for 1/4"-20 and 3/8"-16 are pass through an appear on the top curved surface.

Hejnar Photo H127 Replacement Foot top front view
Hejnar Photo H127 Replacement Foot top side shows curved textured grip and mounting screw holes.

Mimicking the rest of the Hejnar replacement feet with curved and textured grip, the front part of the foot still has a flat section with double dovetail.
As mentioned in the beginning the dovetail extends to the rear behind the mounting block where it is also flat and double. The rear extension is useful for better balancing the camera / lens combo on a ball or gimbal head when using lighter camera bodies, since it allows for a more forward placement of the lens.
Both double dovetail features enable a flash bracket or any other device with a small Arca compatible clamp to be mounted on the top dovetail either in front or behind the mounting block.

As usual the H126 bottom side is deeply carved leaving a central brace, where the two tapped holes lay side by side, the front hole is threaded 3/8"-16 and the rear 1/4"-20. Although this is a foot to be used on an Arca style QR clamp, these extra threaded holes may serve for direct mount on any kind of pod with an equivalent stud.
The standard M3 safety stop screws are pre-installed one at the front end and one at the rear end of the foot depriving from any accidental slip offs from a semi-closed QR clamp.

Hejnar Photo H127 Replacement Foot bottom side view

The collar mounting block is almost solid with only a quite large center hole reducing some weight, something typical for the Hejnar replacement feet design. As I have pointed out many times in the past a solid block has better vibration absorption with very small sacrifice in weight.
Due to the continues dovetail extending in the rear of the mounting point small gaps allow for the mounting screws on the lens collar.

Hejnar Photo H127 Replacement Foot mounting block detail
Hejnar Photo H127 Replacement Foot detail of mounting screw gaps on dovetail.

Installation on the Lens

Replacement of the collar foot on Canon super telephoto lenses has always been straightforward and easy for anyone able to handle an Allen hex key. The four mounting screws on the original Canon foot should just be unscrewed and removed, using the appropriate Allen hex key provided with the Hejnar replacement foot for this purpose.

Using the same four screws, one needs just to screw back and secure the Hejnar H127 replacement foot onto the lens collar.

Hejnar Photo H127 Replacement Foot with tools
Hejnar Photo H127 Replacement Foot with Allen hex wrenches for the M3 safety screws and the Collar mounting screws
It is recommended to use a thread locking compound like Loctite 242 (blue) or any other equivalent product of medium strength for small screws. This will prevent the screws from loosening up in the future.

The Hejnar H127 replacement foot allows enough space below the focusing ring for easy manipulation and extends so much as its installation will not interfere with reversal of the Large Lens Hood for storage of the lenses.

Furthermore, Hejnar Photo declares their dovetail design and the dimensions of the H127 FOOT conform fully to the standards shared by Kirk®, R.R.S.®, Arca-Swiss®, and many other Quick Release clamps that have adopted the Arca dovetail style.

Photos by courtesy of Hejnar Photo ©2017 Chris Hejnar

Price and Availability:
Current price for the Hejnar H127 Replacement Foot is US$ 75.00 (+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 the current valid Hejnar Photo discount coupon before ordering.

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