An image browser for displaying and editing Exif and IPTC data. Sorts files according to metadata and automatically renames, copies and moves them. Supports drag and drop and real time previews of new file names. Sorting rules can be saved as profiles. Requires Java Runtime Environment (JRE).

A simple freeware program for creative painting. Includes a highly configurable brush system and built-in teamwork features.

This issue's article on autofocus includes instructions on how to test your camera's autofocus system using author Ralph Altmann's custom animated GIF. The test can be performed on a computer monitor or using a printed version of the test image and the results analyzed using Ralph's custom Photoshop Actions. These can be applied to your own test shots or the sample shots provided here.

This workshop touches on a range of topics from camera settings to working with a model. Assistant Laurent gets to work with an experienced model and finds out just how demanding it can be to combine all the essentials in a successful shoot.

This program for photographers and imaging enthusaists offers new and unique presets and filters for transforming digital photos into amazing works of art. It can be used as a standalone product or as a Photoshop plug-in.

Please note: Use of the Windows version requires a two-stage online registration during installation. Mac users need to install the trial version and use the contact form to send the text "c’t Digital Photography – Color projects for MAC" to the manufacturer. You will then recieve a free serial number via email.

Registered readers also qualify for a 40% discount on upgrades to a full version of 'PHOTO WORKS projects #3'. Registration and upgrade offers apply until March 31st 2016.

A two-part command-line tool for merging digital images to TIFF. Merges multiple images into panoramas or produces a single image with enhanced focus and/or exposure.

A graphical user interface for the Enfuse image blending program

A command-line tool for reading and writing Exif, IPTC and XMP metadata. The Linux archive provided with the package contains the appropriate Perl library.

An image browser and converter with advanced screenshot capture and simple editing functionality, including red-eye removal

A web-based photo album organizer that gives you an intuitive way to blend photo management seamlessly into your own website whether you're running a small personal or large community site.

A semi-professional, open source image processing software suite that includes layer support and a wide range of correction tools and filters. A user guide is available here.

The portable version of the semi-professional, open source GIMP image processing software suite that includes layer support and a wide range of correction tools and filters. Runs directly from USB or other memory media and requires no additional installation. A user guide is available here and you can download the source code here.

A plug-in for GIMP that contains a large number of predefined image filters and effects. The source code is available for download here.

Please note: The contents of the archive have to be copied to the GIMP plug-ins folder, which can usually be found under C:\Programs\GIMP-2.x\lib\gimp\2.0\plug-ins\. The G'MIC entry will be listed in the GIMP Filter menu when you restart the program.

A comprehensive image and icon editing software package. Requires Java Runtime Environment (JRE) 5.0 or higher to run.

A comprehensive suite of tools for stitching horizontal and vertical panoramas. Automatically generates control points that can be manually adjusted by the user. The source code is available for download here. Requires .NET Framework 3.5 or later.

An open source vector graphics editor with capabilities similar to Illustrator, CorelDraw, or Xara X. Uses the W3C standard scalable Vector Graphics (SVG) file format. Inkscape supports many advanced SVG features (markers, clones, alpha blending, etc.) and makes it easy to edit nodes, perform complex path operations, trace bitmaps and much more. The source code is available for download here.

This issue's lens test takes a close look at 70-200mm zooms with constant maximum apertures for DSLR and mirrorless system cameras. We checked out camera manufacturers' own-brand lenses and compared them with the third-party competition from Tamron, Sigma and Tokina. This archive contains the high-resolution JPG and RAW test shots we captured.

Luminance HDR is a graphical user interface (based on Trolltech's Qt4) that provides a workflow for HDR imaging. Supports HDR, TIFF, PFS or EXR, as well as JPEG, PNG, PPM, PBM and TIFF LDR images. You can download the source code here.

The MacPorts project is an open source community initiative to design an easy-to-use system for compiling, installing and upgrading either command-line, X11 or Aqua-based open source software on the Mac OS X operating system. Includes various graphics programs, such as Autopano-SIFT and ImageMagick.

Simple-to-use image-processing software with a wide range of tools and functions for optimizing digital images. The software offers manual and fully automated adjustments and the 'Cut Out' tool for removing unwanted objects and backgrounds.

Please note: c’t Digital Photography readers can register via e-mail for a free copy of Movavi Photo Editor. Windows users click here for a 40% discount on a purchase of Movavi Photo Studio. Mac users click here for a 60% discount on Movavi Video Converter. These offers are valid until January 15th 2016.

Photographer Martin Krolop gives a step-by-step tutorial on how to create a beauty or portrait setup using just one light. He explains the best position, techniques and studio accessories to use to get the best possible results from this simple setup.

Tim Mantoani is a renowned lifestyle and sports photographer. His photographic roots lie in analog times and led him to create a compendium of key analog photographers including Steve McCurry, Nick Ut and Daniel Kramer. The resulting work is called "Behind Photographs" and shows 170 portraits of great photographers together with their best-known images, all captured using a 20x24" Polaroid camera.

What could be simpler than photographing sliced fruit? This video shows you how to create a cool effect using a portable flash and a picture frame. All you then have to do is add piece of sliced fruit of your choice and let your creative juices flow:-). There are no super technical studio flash power settings involved and the secret to success lies in how you slice your fruit. Check it out!

A simple and comprehensive Web publishing and blogging tool. You can download the source code here.

An easy-to-install Apache distribution that contains MySQL, PHP and Perl

A simple, efficient multimedia viewer and converter that supports more than 400 graphic formats