You can see from the table that EV 0.5 is pretty dark. It is normally measured referencing ISO100 and an f1.4 lens.

The point is if there's no light, the image will be rubbish anyway, if there is light then it won't be EV0.5

It was noted in the article quoted that it would apply equally well to other marques, if there was a problem, although I haven't found a problem personally so it's hard to judge absolutely.

I've read the article and I'm not so sure it isn't techno-nonsense, purposrting to be highly scientific but actually pretty meaningless.
If we subtract their 20 suggested error from the results and measure at 0 EV there's hardly any error at all. If we have a light level of 0.5 EV there isn't a problem.

Who routinely uses AF at such low light levels and why? Our eyes can't properly focus the camera when it's that dull....

Calibrating the AF in such dull light will not be accurate and will definitely lead to focusing errors.

I'm wondering if there is a clue in your mention of tungsten light. I would reset factory defaults and try again using daylight. If you have correct focus in daylight then any problem may be restricted to extremely dull and coloured light, such as tungsten.

It's more usual to be taking photos in brighter light. Any errors can be corrected using QuickShift. In any event depth of field will cover most small errors.

Otherwise, if there's a real fault then returning under warranty seems to be the best option.

The 750Z is very good indeed.

If you're looking for something around the stated budget, check out for offers on the I-10, which is pretty good as well.

Fantastic start to Christmas!

The one thing I dislike about getting new cameras is fitting the strap....it needs a quick release system like the Rollei TLRs used to have.

The meter can be set to operate on 0.3EV and 0.5 EV steps, as you prefer. Personally, I use O.3EV steps as this allows slightly greater accuracy and also allows exposure compensation to be set at a very modest -0.3EV when required.

The EV range of the meter is something else entirely - that is the range of brightness levels that can be measured. A typical late film camera could usually cover EV 1-18, later ones still perhaps EV 0-21.

The K-5 AF system operates within EV -1 to 18 and the meter sensitivity seems to be EV 0-22. This is usually quoted with a 50mm f1.4 lens.

The most usual reason for this is forgetting to hit the button "Add Comment" - this is something many of us do at least once, you're just getting in there early!

There are so many lenses and if I came across a mint or boxed unused example of one I would be tempted to buy, not without exception, but certainly for many of the professional quality lenses.

I would choose the DA version without any doubt, so don't feel too badly about it.

It seems a great start to Christmas!