March 16, 2016

New Hejnar PHOTO F91b 1.5" Quick Release Clamp with Dovetail Preview

Hejnar PHOTO F91b 1.5" Quick Release Clamp
The Hejnar family of quick release clamps was enriched by another member recently.

The new F91b is based on the updated Hejnar PHOTO F61b 1.5" Quick Release Clamp (review) keeping all the characteristics, while adding an Arca-Swiss® compatible Dovetail on the bottom, perpendicular to the axis of the QR clamp jaws.

In this way the dovetail allows the clamp to be mounted inside other clamps switching orientation.

The clamp

Manufacturer Specification:
Jaw Length:1.5" (3.81 cm)
Weight:87 gr (3.1 oz)
Center Countersunk hole:1 x Threaded 3/8"-16
Short Captive Screw Knob:Stops at maximum opening
Material:6061-T6 Aluminium
Color:Black hard coat anodized
Hardware:Stainless Steel
Made in :USA

The top side is identical to the F61b QR clamp with decimal scales on both jaws, the safety stop relief grooves and the counter sunk and 3/8"-16 threaded center hole.

Hejnar PHOTO F91b 1.5" QR Clamp top view
Same applies to the tongue in pocket design of the moving jaw guides which guaranty a long term impeccable operation by not allowing dirt and grit entering the clamp interior. The small black knob is also the same, considering the "b" at the end of the model name.

The bottom however, is new since the addition of the dovetail on the 1.5" clamp. The extra dovetail was added below the QR clamp main body, leaving the moving jaw mechanism clear from any intervention.
Nonetheless, there are the usual cavities at the bottom that maintain the weight very low, with very little overhead compared to the F61b.
Hejnar PHOTO F91b 1.5" QR Clamp bottom view

As standard with all Hejnar Photo products the appropriate screws and tools are included. These are a short 1/4"-20 flat head screw with hex socket and the corresponding Allen hex key.

Hejnar PHOTO F91b 1.5" QR Clamp with screw and hex key

Arca Swiss® compatibility is a standard for Hejnar Photo products extended to this QR clamp as well regarding both its clamping jaws and the dovetail on the bottom. Hjenar Photo products work with Arca type clamps from:
  • Markins® including lever release clamp
  • Really Right Stuff®, including lever release clamp.
  • Arca Swiss®
  • Wimberley®
  • Kirk®
  • Photo Clam®
  • Foba® (Foba uses different safety stop mechanism, so safety stops may need removing)
  • Vanguard ABH Series Ball Heads (ABH is Vangaurds only Arca-Compatible series)
  • Custom Brackets®
  • Jobu Design®
  • Acratech®
I hope you found the information useful, thank you for viewing.
Photos by courtesy of Hejnar Photo ©2016 Chris Hejnar

Price & Availability:
Current price for the F91b clamp is US$ 55.00 (+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:

Hejnar PHOTO Updated F61b 1.5" Quick Release Clamp Review

Relevant articles:
Hejnar Photo Updated F62Ab Quick Release Clamp Review
Hejnar Photo New! Quick Release Clamp Series
Hejnar PHOTO F60 1" Quick Release clamp
Hejnar Photo F010A and F012 Quick Release Clamps

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