Apple has issued a trio of software updates for photographers, including Aperture 1.5.1.

The company has also released two Digital Camera Raw Support updates, one for PowerPC (1.4MB), the other for Intel-based Macs (2.4MB).

These updates "improve Raw file format compatibility for some digital SLR cameras," Apple states. They usher in support for additional cameras from Canon, Nikon and Pentax. Adobe DNG and large Raw file handling has also been improved.

The Aperture 1.5.1 update - which cannot be installed on the trial version of the application Apple also released last night - is a weighty 125MB download.

Apple explains the update: "Addresses numerous issues related to overall reliability and performance in all areas of the application." The company recommends all Aperture customers should install the update.

Specific areas seeing a performance boost from the software tweak include: Keywords, Loupe, Cropping, Previews, Metadata presets, Versions, File renaming, iPhoto Library import and Watermarks.

You can download Aperture 1.5.1 here.