Helicon Filter Free - Version 4.27 Helicon Filter Free offers full set of the professional post processing tools to the digital photographer. Intuitive interface, context help and full screen preview make it easy to learn. Available filters: noise reduction, white balance and saturation adjustment, correction of chromatic aberration, distortion and vignetting correction, cropping, rotating, resizing, sharpening and deblurring, adding frames, text, etc.