Performance

The 30.5x30.5cm square lamp has a higher maximum illumination rating than the Manfrotto LED head. However, we found it to give an almost identical maximum output, corresponding with an aperture requirement of f/1.6 in our two-metre test. There’s nothing to choose between the colour fidelity of this and the Manfrotto head, despite the Manfrotto’s higher Colour Rendering Index of >90% (the Calumet’s CRI is only >85%).