There's no shortage of demand for photo filter apps, Nevercenter's CameraBag 2 among them. The app is not just a revamped version of the company's CameraBag for Mac; CameraBag 2 sports a bevy of new features, including more than 100 adjustable filters and dozens of editing controls.

CameraBag 2 offers more editing and filter control than the original Mac app or its iOS counterpart. Users can view all available filters for a photo using a tile-based system. Once you select a filter, you can make basic and more advanced edits: CameraBag 2 offers exposure, vignette, saturation, color correction, and curves controls. Most importantly, if you've designed a look that you're especially fond of, you can save it as a new filter for later use.

Similar to more advanced photo editing software like Photoshop, CameraBag 2 features an active history timeline, allowing users to make non-destructive edits. You'll also be able to layer different filters and adjustments on top of one another. Other updates include a brand-new interface, speedier image processing, raw format and metadata support, batch saving, and 32-bits-per-channel color depth.

The app is currently on sale for £13.49 in the Mac App Store, 20 percent off its normal price, and requires a Mac with a 64-bit processor and running OS X 10.6.6 or later. You can also purchase a cross-platform license (PC and Mac) for CameraBag 2 on Nevercenter's site for a special promotional price of $24 (£15), normally $29 (£18); a 30-day free trial is also available on the company site.