Yes, Robin, you can measure frequencies but you can't know which ones are relevant. But we can listen and appreciate tonal qualities that cannot be expressed in the figures and graphs.

Likewise, with lenses we can measure all sorts of parameters, but in the end it's the look of the images that counts.

One of the most difficult parts of any of these reviews is the allocation of ratings. You might not believe how much time and consideration goes into that, and making sure as far as possible that the ratings fit into the general scheme of alternatives, and also that the overall score fits the balance of the rest of the scores.

Prime lenses don't fit well into the guidelines provided because compared with zooms and other lenses they don't have many features. They would barely rate one or two stars on the scale. But here we do have a built in lens hood, we do have the high quality finish, we do have the DOF scale. We don't have Quick Shift, so the 70mm f2.4 gets an advantage there. So these are the sort of things that are juggled to give an overall score.

Overall, 4.5 stars gives Highly Recommended, just short of an Editor's Choice.

It was never intended that users would hack their way into the firmware. It means that unpredicatble things may have been done to any digital camera, and to be honest to some extent it puts me off buying bodies second hand.

Silver Oxide batteries are best, SG13 or equivalent. Alkaline ones will only last 6 months or so, half the expectation. Lithium ones should be avoided.

That may be so, but it is delving into the camera firmware in a way that was never intended. I would leave it to the engineers.

Spiders and Bots are software that trawl the web for suitable places to put adverts, collect information....

You can comment all you like in the Gallery or in the Forum. It's easier to post in the Gallery and it was provided for the same purpose as the Forum.

You should check your images as there are lots of comments posted throughout the Gallery. The more the better!

Off topic posts removed.

Same edit as other post - same reason.

I suggest people PM you - putting your e-mail address in the forum can result in a mass of spiders and bots finding you.