Sachtler Bowl Sizes & Tripods Explained: 75mm vs 100mm vs 150mm, flowtech vs Traditional

Last updated: 7 August 2026. Specs are Sachtler's published figures, confirm details on the linked product page for your exact model.

A tripod's “bowl” is the round, cupped interface the fluid head drops into, it lets you level the head fast without adjusting each leg. Sachtler tripods come in 75 mm, 100 mm and 150 mm bowls, plus flat-base and pedestal options. This guide explains which is which, how flowtech differs from traditional legs, and how to match a tripod to your head and camera.

Why a bowl (and what the number means)

The number is the diameter of the bowl. A larger bowl supports a heavier head more rigidly, but adds weight and cost. You level the head by loosening one clamp, tilting until the bubble centres, then re-clamping, far quicker than levelling three legs individually. A flat base (no bowl) bolts the head directly for maximum rigidity, common on studio and some cinema setups; pedestals replace legs entirely for smooth studio height moves.

75mm vs 100mm vs 150mm

As a rule the bowl follows the head: a 0 to 8 kg head is 75 mm, a mid-weight ENG head is 100 mm, and a heavy cinema head is 150 mm. If you expect your rig to grow, choosing a 100 mm system over 75 mm gives more stability headroom.

flowtech vs traditional tripods

flowtech is Sachtler's carbon-fibre tripod designed for speed. Quick-release brakes deploy all leg stages at once from top-mounted levers, no bending down to work multiple clamps, and a hinge-lock sets three leg angles (roughly 72°, 46° and 20°) without a spreader, so you can go from eye level to near the ground fast. Magnetic leg locks keep transport tidy. flowtech comes in 75 mm (rated to 20 kg) and 100 mm (rated to 30 kg), and pairs beautifully with aktiv heads, for example the aktiv8 flowtech75 and aktiv10 flowtech100 systems.

Traditional two-stage tripods use conventional leg clamps and a spreader. They're the value option and still the backbone of many Ace, FSB and Video systems, like the FSB 8 aluminium system or the carbon-fibre Ace XL. You trade some deployment speed for a lower price.

Mid-level vs ground spreader

A spreader stops the legs sliding outward under load. A ground spreader sits at the feet and gives maximum stability on flat, hard floors, ideal for studio and repeatable setups. A mid-level spreader sits partway up the legs and copes far better with uneven ground, stairs and location work, which is why many run-and-gun operators prefer it. flowtech's hinge-lock can also work spreader-free for the fastest setups.

Carbon fibre vs aluminium legs

Carbon fibre is lighter and stiffer, dampens vibration well and handles temperature swings, the choice if you carry gear all day or fly with it. Aluminium is more affordable and very durable, a sensible pick for studio or vehicle-based work where a little extra weight doesn't matter. Many Sachtler systems, such as the Ace XL and FSB series, are offered in both.

How to match tripod to head

Start from the head your camera payload needs (see our payload buying guide), then take the bowl size that head uses. Choose flowtech if setup speed matters, traditional legs to save money; a mid spreader for location work, a ground spreader for the studio; carbon to save weight, aluminium to save cost. Buying a matched System package guarantees the head, bowl and legs all fit, see the full range in our complete Sachtler guide.

Frequently asked questions

What does tripod bowl size mean?

It's the diameter of the cupped interface the fluid head sits in, 75 mm, 100 mm or 150 mm on Sachtler tripods. The bowl lets you level the head quickly with one clamp, and a larger bowl supports a heavier head more rigidly.

Is 75mm or 100mm better?

Neither is universally better, it depends on your head and payload. 75 mm is lighter and faster for DSLR, mirrorless and small cine rigs; 100 mm is more rigid for heavier ENG, broadcast and built-up cine cameras. Match the bowl to your head class.

What is the advantage of Sachtler flowtech?

flowtech deploys all leg stages at once via quick-release brakes, sets three leg angles without a spreader, and changes height in a single action, much faster than traditional clamps. It's carbon fibre, comes in 75 mm (to 20 kg) and 100 mm (to 30 kg), and pairs especially well with aktiv heads.

Should I get a mid-level or ground spreader?

Choose a ground spreader for maximum stability on flat studio floors, and a mid-level spreader for uneven ground, stairs and location work. Mid-level is the more versatile choice for run-and-gun shooters.

Carbon fibre or aluminium tripod?

Carbon fibre is lighter, stiffer and better at damping vibration, ideal if you carry or fly with gear. Aluminium is more affordable and durable, fine for studio or vehicle-based work. Many Sachtler systems come in both.

Where to buy in Australia

Black Flag Distribution is the official Australian distributor of the professional film, television and production brands featured in this guide. We supply an Australia-wide network of authorised retailers and stockists rather than selling direct to the public, so there is a local dealer who can help wherever you are. To check pricing and availability and to buy, use the Black Flag Distribution store finder to find an authorised retailer or stockist near you. Search our store finder to locate your nearest Australian stockist and purchase from an authorised dealer.