Built around Fujinon's 25x zoom platform for 2/3" ENG/EFP cameras, the HA25x11.5BERD starts at a wider 11.5mm than its 16.5mm sibling in this range, giving a broader starting frame before the same servo zoom and 2x extender carry the shot out to long telephoto. It's the standard, hand-operated version in this optical family, built compact and light for gyro-stabilised aircraft rigs and other remote-photography mounts.

Wider start, long reach with a standard extender

The 11.5–288mm range without the extender opens onto a wider frame than the HA25x16.5 optical block manages at its own wide end, and the 2x extender pushes that out to 23–576mm once it's engaged at the lens barrel's extender-select lever, rather than switched in remotely. Aperture holds at F2 through the wide end (11.5–206mm) and falls to F2.8 once the full 288mm is in use.

DIGI Power servo handling

QuickZoom snaps to full telephoto and back for a fast focus check, and the same Digi Power zoom/focus servo and RS232 control found across Fujinon's HA-series puts zoom and focus under remote command, even with the extender itself set by hand.

Light enough to fly

This is the lighter of Fujinon's two HA25x optical blocks in this range at 2.8kg without the hood, with reduced focus breathing built in — qualities that matter most on an aircraft mount or remote housing where payload is limited, whether the job is wildlife work in remote locations or HD surveillance. It focuses down to 2.2m and takes an M107 x 1 filter, matching the remote-extender HA25x11ERD-F18 in everything but how the extender is switched in.