Studio Ocean Mark BLUE HEAVEN 5Hi/R-D(26) is the 2026 (4th-generation) “Advanced Model” of the Blue Heaven series—the direct successor to the long-running L50 size. The naming shifted from “L50” to “BH5” / “5Hi,” with “(26)” indicating the 2026 model year and “R-D” denoting right-hand retrieve in Dark Silver color.
Key Specifications (5Hi/R-D)
• Gear ratio: 6.3:1
• Line retrieve: 110 cm per handle turn
• Max drag: 10 kg
• Weight: 515 g
• Line capacity (PE): #4 – 400 m (300 m with economizer), #3 – 550 m (400 m with economizer), #2 – 900 m, #1.5 – 1,100 m
• Drag washers: Carbon
• Color: Dark Silver (D)
• Handle: Right-hand (R)
Major New Features (vs. previous L50 / 3rd-gen models)
• World’s first lever-drag reel with dedicated drag-click mechanism (PAT.P): Silent during free-spool and retrieving; audible click only when the drag is slipping. Developed from the previous waterproof-cover design.
• Improved waterproofing (borrowed from OGM 100): Waterproof cap on the angular-contact ball bearing, oil seal on the handle shaft, spool cap, and waterproof trap on the spool shaft.
• Drag Power Memory Ring (previously limited-edition only): Printed ring shows drag force at each click (~0.5 kg increments; +2 kg at MAX) for instant visual reference.
• Updated L-shaped drag lever: Better fingertip fit and reduced line tangling while still allowing palm-side operation.
• Carbon + stainless-steel (composite) drag system: Smooth start-up, high friction, durability, and heat dissipation.
• Dynamic Gear: Refined gear meshing for more powerful, efficient winding.
• Retained classics: Easy spool change (even on a rocking boat), left-right asymmetrical frame (larger gear-box side, smaller palming side), forged & machine-cut aluminum frame/gearbox, Super Spool Free system, and easy full disassembly for maintenance.
Note: Spools are not interchangeable with previous (3rd-generation) Blue Heaven models.
This is positioned as an all-rounder for nearshore to mid-depth jigging (bluefish, yellowfin, etc.), emphasizing refined control, sensitivity, and reliability.

