Quote:

blende8
Lens-Buying-Enabler, retired
Admission executive of the "Kate IS/WAS/AND CONTINUES TO BE WONDERFUL" Nutters Club

Kate Adie/Middleton/Moss/Rusby/Kiss me/the Great/Winslet/Nelligan/Hoey/Beckinsale?

My guess is Hoey.

G

Yes, given that it works OK with all lenses when set to A, that suggests it is not a focussing screen problem but a software problem.

But it's very strange, because the light that the camera is measuring is the same light that will be used to take the picture. There is no need to adjust for the working aperture, as there is when metering wide-open.

It's as though the camera is making an adjustment when none is needed.

G

Thanks, Matt,

If it's down to the screen, surely that would affect all lenses, not just pre-A lenses.

My guess is that this is an algorithm issue, and if the algorithm processing is done in firmware, then it should be fixable.

Come on, Pentax.

G

Having been playing around with a number of my older lenses recently, prior to selling some of them, I have to agree with Chris A and all the others - something isn't working with the metering when the lens is not set to A on the aperture ring.

Apologies to Chris, incidentally, for suggesting he was doing something wrong.

My question is, is this something that is likely to be controlled by firmware, and therefore fixable, or is it controlled by a lower level of software which can't be updated?

I don't imagine it is a mechanical problem.

G

Welcome to the club, Lilly.

G

Good try, though, Rodger.

G

Apparently these worrying phenomena vary with the time of year. April 1st is a particularly bad time, it seems.

G

Adobe and SRGB?

G

Bear in mind, Thomas, that if you buy a good lens second-hand on Ebay, you are likely to be able to sell it again later for much the same money.

So the fact that it costs a bit more isn't really a major consideration. Most people can beg or borrow the £350 -£400 that a second-hand 77mm will cost, and you'll also have the satisfaction of owning one of the world's best lenses.

That's what I would do (if I didn't already have a second-hand 77mm bought on Ebay!).

G

That's not a bad idea. Get a 1:1.2 50mm, marry it up to the 1.7 convertor, and for under £250 you'll have a dream 50mm plus a 1:2 85mm with AF.

G