Kirk Macro Focusing Rail FR-2 with Arca Type Quick Release Clamp

The Kirk FR-2 is a heavy-duty, precision-engineered macro focusing rail designed for extreme close-up, nature, product, and focus-stacking photography. Crafted from durable CNC-machined 6061-T6 aluminum, it provides fine lead-screw control to move a camera forward and backward with pinpoint accuracy over a 4.25-inch travel distance. Equipped with an integrated Arca-type quick-release clamp on top and a full-length Arca-style dovetail along its base, it mounts seamlessly into compatible tripod heads and accepts standard camera plates or L-brackets. Dual control knobs and a quick-release push-button release mechanism allow photographers to make rapid coarse adjustments before switching to ultra-fine gearing.

Key Features and Specifications

* Precision Macro Movement: Smooth lead-screw mechanism allows micro-adjustments essential for critical focus positioning and focus stacking.
* CNC-Machined Construction: Made in the USA from solid 6061-T6 aluminum with a hard-anodized protective finish for long-term durability.
* Integrated Arca-Type Clamp: Features an Arca-style quick-release clamp on top with laser-engraved index marks for precise alignment.
* Double Dovetail Base Design: Bottom bar features a full-length Arca-type dovetail plate for direct mounting to tripod heads, plus 1/4″-20 and 3/8″-16 threaded sockets.
* Quick-Disengage Button: Allows fast slide-adjustment across the rail length without endlessly turning the focus knob.
* Laser-Engraved Scale: Etched millimeter reference scale along the rail body provides exact measurement tracking for sequential focus-stacking frames.

Condition and Included Accessories

* Included Accessories: Kirk FR-2 Macro Rail with top clamp (quick-release camera plate not included).