Tiffen now has their Dfx digital filter suite available as a plug-in for Aperture 2.1:

Dfx digital filter suite offers precision adjustments over its range of effects that cannot be approached by any other digital filter software. A complete edition includes the most comprehensive array today, emulating more than 1,000 varied effects and gels, from factory pre-sets or custom effects, providing total creative and technical control with the most comprehensive and user-friendly filter-effect palette today.

They are offering a 15-day free trial with full availability in May.

Digital Film Tools has Light, Ozone, and Power Stroke, three tools that appear to be available right now.

Light: Using a pre-built light and texture library that includes windows, doors, leaves and abstract patterns, you can add realistic lighting and shadow to scenes just as if you were adding a light at the time of shooting.

Ozone: Inspired by Ansel Adams' Zone System for still photography, Ozone allows you to manipulate the color of an image with incredible flexibility and accuracy using a Digital Zone System. The Digital Zone System takes the spectrum of image values and divides them into 11 discrete zones. The color, brightness, contrast and gamma of each zone can be independently adjusted until you've painted a new picture.

Power Stroke introduces a simple, interactive stroke-based interface to quickly and intuitively perform targeted adjustments. Instead of meticulously selecting regions or hand-painting masks, regions of interest are isolated by drawing a few simple brush strokes with adjustments then made only in those areas. Strokes can be assigned multiple adjustments and effects such as color correction, recoloring or desaturation, colorization of black and white images, blur, fill light for dimly lit image areas and Diffusion/Glow.

Tags: Aperture, Plug-ins, Adjustments