Rosco Polarising Filter
Kill glare and reflections at the light — before they reach the lens.
The Rosco Polarising Filter #7300 is a neutral-grey polarising film for film, television, photography and display lighting. Mount it on the fixture to cut specular reflections off glass, water, polished metal and glossy packaging, so surfaces read clean and contrast holds.
A polariser sorts light by its wave direction — and blocks the part that becomes glare.
Light bouncing off a smooth surface becomes polarised: its waves line up in one direction. A polarising filter passes light in one orientation and blocks the rest, which is why it can strip the harsh, mirror-like reflections that flatten an image and wash out colour.
Placed in a gel frame in front of your light, the #7300 lets you control those reflections right at the source — instead of fighting them in the grade. It’s a near-neutral grey, so it cuts glare without throwing your colour temperature off (about 1.5 stops of light loss).
What it does for your shot
- Reduces reflections from glass, water and shiny surfaces
- Improves contrast and colour clarity
- Controls glare in studio and location lighting
- Reveals texture and detail in reflective materials
Two polarisers, near-total reflection control
The most powerful way to use the #7300: one polariser on the light, one on the lens. Rotate the lens filter and watch reflections fall away almost completely.
Polarise the source
Mount the #7300 in a gel frame in front of the fixture so the light hitting your subject is already polarised in one direction.
Add a lens polariser
Fit a circular or linear polariser on the camera. Now you have a matched pair working the same beam of light.
Rotate to taste
Turn the lens polariser and reflections dim or vanish on cue — from a gentle knock-down to a fully reflection-free surface.
Glare gone, at the source
Built for reflective, high-clarity work
Product photography
Kill hotspots on packaging, jewellery, glassware and polished goods so the product, not the reflection, is the hero.
Film & television
Control reflections on set surfaces, screens and windows without moving lights or reblocking the shot.
Retail & museum display
Light glass cabinets and exhibits so viewers see the object clearly, not the glare of the case.
Interviews & sets
Tame reflections on glasses, screens and shiny props in talking-head and studio setups.
Glass & packaging
Shoot bottles, cosmetics and boxed goods with even, reflection-free surfaces every time.
Cross-polarised imaging
Technical, forensic and conservation imaging where suppressing surface glare reveals what’s underneath.
Sheet, roll or long roll
Same #7300 polarising film in three sizes — from single lighting frames to full production rigs. Cut to size or mount in a frame.
Sheet
Ideal for lighting frames and smaller, single-fixture setups.
Roll
For studio lighting installations and multiple fixtures.
Long Roll
Film production and large lighting rigs that need plenty of material.
Held in Australia by CFATS, the exclusive Rosco distributor for Australia & New Zealand.
Rosco #7300 at a glance
| Filter number | Rosco #7300 |
|---|---|
| Material | Acetate |
| Thickness | 6 mil |
| Colour | Neutral grey (minimal colour-temperature shift) |
| Light transmission | 38% (approx. 1.5 stops) |
| Finish | Natural curl, characteristic of the material |
Installation & usage tips
- Mount in gel frames or filter holders in front of the fixture, coated side facing the subject.
- Pair with a polariser on the camera lens for cross-polarisation, and rotate the lens filter to set the reflection level.
- Test polarisation angles before you roll or shoot — the effect depends on light angle and surface.
- Combine with diffusion when you want soft light and reflection control together.
- Handle by the edges to avoid scratching the polarising layer.
Take control of glare at the source.
Pick the format that fits your rig and add it to your cart — sheet for a single frame, roll or long roll for the studio and larger productions.
Choose a format