Oliver Pettenpaul of astro-imaging.de fame has published a very comprehensive review of The Imaging Source DMK 21AF04.AS.

He writes:

The DMK 21AF04.AS is great value for money and a good performer for solar system imaging. Many top planetary imagers use the cam successfully, there’s no bad surprise in the camera’s behaviour.
[...]
The camera comes with a good and practical software package which is not too common for other cameras of this segment.
[...]
The camera is highly recommended to solar system imagers looking for a solid and well known performer who don’t want to invest in the range of 1000€.

He splits his review into the following sections:

1. Introduction

2. DMK 21AF04.AS Overview

3. DMK 21AF04.AS Software

4. DMK 21AF04.AS Example Captures

5. Resume

Thank you, Oliver, for taking the time to review the DMK 21AF04.AS for the astronomy cameras community.