The Q Flash T5D-R TTL flash by Quantum Instruments is an updated version of the T4D model. It has Full Wireless TTL dedication for new digital and film cameras, with the purchase of optional, camera-specific DW series QTTL modules and receivers. The Qflash T5D has Exposure compensation in Auto and Manual Modes, Under-Over F-stop exposure indicators in Auto, a Flash Counter, visible and audible flash indicators and signal, modeling light and an improved reflector locking ring.

It is a completely automated flash head with many advanced user selectable operating modes; the perfect portable flash for any professional photographer.

Regular auto and manual flash is possible through its twin-blade sync socket. TTL flash exposures are possible with the T5D, and selected digital cameras. Backward compatible with all Quantum TTL cords and adapters.

The Q Flash uses parabolic reflectors for clean, even light spread, and the reflectors are removable for bare-bulb lighting. Flash control is either Automatic, TTL (with optional adapters for TTL camera control), Manual, or Stroboscopic. Automatic exposure control covers a nine stop range, adjustable every 1/3 stop, for a total of 25 automatic settings. Manual power can be adjusted from full to 1/64 power in 1/3 stop increments; flash power can be dialed in precisely; Stroboscopic mode can be adjusted for flash power and number and frequency of bursts for special effects. Program allows storage of up to 8 favorite settings and switching between them at a push of a button.

LCD control panel shows minimum & maximum flash distance range for each auto setting. It has both an audible and visual indication of correct exposure, displaying "OK" & 1 beep, or 3 beeps right away and an "UNDR" or "OVER" in the display, telling which way to adjust the unit. The beep is switchable, or one may use the included earphone in situations where noise is distracting.

The Q Flash mounts on a camera bracket, tripod, or lightstand and weighs no more than a conventional flash.

The Q Flash Model T5 can only be powered by the TURBO Series Batteries, or Lumedyne Mega Cyclers with a Lumedyne battery, up to 150 w/s, full power, manual.

The Quantum Instruments Turbo SC Battery Pack ("S" for Slim and "C" for Compact) provides typical all-day flash shooting capacity like the standard Turbo, yet weighs less than 1 lb and fits easily in a shirt pocket.

State-of-the-art NiMH batteries power the Turbo SC for lightning-fast recycling times and high capacity. Despite its mini proportions, it provides up to 225 full-power flashes with Quantum's Qflash units, or 400 shoe mount flashes, on a single 1.5-hour charge. And, like all Quantum batteries, the Turbo SC features a computerized "fuel gauge" that clearly displays the amount of power remaining and monitors charging progress.