Left: position of the (non-thermal) thin filament in the Quintuplet deep C-band image (indicated by the blue ellipse). This image was created with the aforementioned u-v cut. The black dotted line measures the apparent size of the filament. Right: same area as seen in the preliminary A, B, and C VLA multi-configuration C-band image (with no u-v cut) in which both the thin filament and the larger non-thermal radio filament are clearly visible. The rms in the multi-configuration image is ≳50 µJy/beam.