To be fair, Pentax haven't been silent, it's just that the issues were so long ago that the replies have been forgotten. As I recall, the SDM was slightly redesigned to avoid the problems with early batches. I think the main issues were found with the 16-50mm and 50-135mm lenses.

There will always be some issues with all these lenses though, just as there are with other marques. Lenses are not the simple things they once were, so I guess there's more to go wrong.

We are still using the K-5 and will continue to do so for the time being. It is a worthwhile step up from the K-7, so I'd go for it.

Nigel, are you not tempted while the prices are so low?

I'm sure you're right Nigel, in fact I know you're right, inasmuch as if we were shooting negative film (usually black and white) then the only thing to do was have our own darkroom, to keep full control over the processing. The equivalent now is to use the computer to complete that process. Photoshop is echoing the techniques used in the darkroom, and the nomenclature is the same.

The slide film exercise is equally valid for film photographers as it is for digital photographers. A slide film is a WYSIWYG process and it makes us better at the exposure stage. Whether in the darkroom or in front of the PC, this makes our images easier and quicker to process.

The proof of the pudding Nigel is of course in the results.

I would contend that if many photographers took a film camera with a 36 exposure colour slide film we would be astonished at how sloppy our approach can be. Suddenly exposure would have to spot on, we would have to examine the corners of the frame we were shooting to avoid unwanted details cropping in, we would even have to level our horizons. That latter point is not difficult to achieve by eye.

My further contention is that having sharpened up our technique and approach, we would be better photographers for the exercise. I would encourage any photographer to try it and see how it makes a difference.

There are problems David, and it's one of those things where the more we think it the more complicated it becomes. I can only speak for ADAPS, and for internal competitions clubs can do whatever they want, so the rules is the rules, so to speak.

All shots must be in JPEG and straight from the camera, not even retitled. They come to me and I resize them for projection, having cast an eye over the files to make sure they qualify. As for the photographers, they are free to choose image style, etc., anything apart from in-camera HDR, and that's considered to be equivalent to choosing the slide film to be used. As near as possible, it's a slide competition, just as it might have been a couple of decades ago, and with all the demands regarding exposure and composition being right.

Over think it and it falls apart, accept it as it is and have a go and we get a lot of entries and people enjoy it. There's even a trophy, donated by the widow of the member who suggested the competition. He was very ill when he struggled to attend the first one and died shortly afterwards, and that in itself added something to the way we all viewed the competition.

Looks great!

It's an exercise in discipline and making the photographer work harder to get it right up front. Once in a while it can improve our photography and our club too took it overwhelmingly to their hearts.

IT will pick up your report in due course, but I too changed to using Chrome some time ago. IE seems to lock up so easily, but Chrome loads properly 99% of the time. When there is a problem, I think it's related to rogue adverts on Google Ads that cause things to hang, but I could be wrong.

The thing I've noticed there is that the exposure on the Super A of f/2 and 1/60s is the same as the ME Super and f/2.8 and 1/30s. So on the face of it we have no discrepancy. There is also only a small deviation in the f/2.5 and 1/30s with the Super A Shutter Priority, well within tolerance.

Why Manual and Aperture Priority should yield this alternative measurement, which is the same for both, is a complete mystery without further information. The only thing I can think of is maybe a fault on the circuitry that controls selection of mode. I would try moving the ISO dial several times to make sure the potentiometer is clean and gives good contact. I would also clean the contacts on lens and lens mount, with a soft dry cloth.

If you know what you're doing with the ME Super then the Super A should not present any problems.

I've amended it, although I don't think it would have been much of a problem. The Limited bit is the most critical part of it!