Just Posted! Canon EOS 50D in-depth review. Canon's EOS 50D is essentially a 40D body with a newly-developed 15 megapixel sensor, a 3.0 inch VGA screen and Canon's updated imaging processor, the DIGIC 4. Canon claims the new sensor's design (new manufacturing processes, redesigned photo diodes and micro lenses) means that despite the higher resolution image noise has improved. As you might imagine, we've had a closer look at this. Find out more after the link.

Olympus has announced firmware updates for several of its lenses to allow their use with the Panasonic DMC-G1. The updated lenses are the 35mm F3.5 Macro, 25mm F2.8 pancake, 35-100mm F4.0-5.6 and 40-150mm F4.0-5.6. Once upgraded, the lenses will be 'compatible' with the G1. It's unclear whether the 35mm Macro and 35-100mm lenses will be able to autofocus (we're looking into it), but the 25mm pancake and 40-150mm certainly will.

Canon has released new firmware for the EOS 50D, taking it to version 1.0.3. The latest version corrects three issues, two of which the company describes as 'rare.' One of the problems addressed is the much-discussed Err99 error message that can prevent the camera taking photos.

Nikon has today announced a firmware update for the D300, taking it to v1.10. The update improves focus performance in dynamic-area AF mode contrast-detect mode in live view but also looks at a whole range of other issues. Click through for links to more information and the downloads.

It's taken us a little while, but we've finally found the time to write up a much-needed 'Help' section for our lens reviews. Focusing mainly on how to use our interactive data display 'widget', but also featuring useful tidbits of extra information and a 'Frequently Asked Questions' page, it can be found in the 'Learn/Glossary' section of the site.