Before you go with the Currys option, you might want to read this thread. Yer pays yer money---

Seconded, and I am not interested in teleconverters (unless they can make one which has no impact on IQ or AF performance) or what we had in the film days.

I notice Pentax are still showing THAT picture of their lens range (?) on their updated website.

Dry lint free cloth.

I share your reservations about WD40. It attacks some plastics and rubbers.

This is an extremely dangerous post and should be ignored. 240VAC should be regarded as a lethal voltage.

Mods - please remove, or at least contact me.

Do they make a WiiUnfit?

I haz work.

The battery can communicate with the camera. Have a look at the battery in a K20 - there are only two terminals and the battery yet the camera can show the battery level (or a reasonable estimation of it). The usual method is to try to draw a very high current for a very short period of time. The lower the internal resistance of the cell, the higher current this impulse will be, and this will indicate the cell is more charged.

As to the power supplies, switch mode are more efficient, that's why they are more prevalent. By the nature of a linear power supply the power semiconductor(s) will act as a variable resistor, and passing a current through a resistor generates heat (waste energy). With the very low resistance of modern FET/IGBTs when forward biased and extremely high impedance when switched off, the heat generation in either condition, and therefore the inefficiency is very low. The ability to drive a load is not as good though.

Don't let that put you off. It really is a very good lens.

No, it was a car. It clearly says he came down the hill in his Triumph.