A pentaprism is a solid five sided piece of glass (hence the shape of the top of an SLR) that gives a viewfinder image the right way round and the right way up. A pentamirror repaces the solid glass with mirrors but is not quite as good.

Remove this type of viewfinder and you remove a lot of bulk and weight from an SLR.

I would think the most likely thing this would be is a SLR without pentaprism, that is with an EVF instead. As we've already seen a Samsung version of this it wouldn't be that much of a surprise.

However, that is pure conjecture on my part.

Agreed apart from the comment about CDs. There are quite a few Cds from the early days that no longer play because of oxidation of the coating. These go brown eventually and cannot be read.

The trouble is that we only know this years later when it is too late.

I have used teleconverters, including this one, in the past, but I don't any more. I really don't find them worth it.

The exception will be special converters supplied with marque lenses, such as the converter set that provides various telephoto magnifications for Leica.

I've never tried the Pentax converters but I would be interested in seeing how good they were. The 1.7x AF converter might be especially interesting.

Thanks everyone, I really am after straight and honest comments so don't hold back!

This is a nice little spot at the top of the grounds of Gawthorpe Hall, but as you say whether or not that can be captured is something else.

I shall try again on some other occasion and it may be that it really needs some spectacular light to make more of it.

That's fair enough, can you be more specific? Do you find the treatment wrong or the composition wrong or just the subject matter uninteresting for example?

It's all highly suspect and I'm not sure who we'll be able to complain to if our data doesn't last 100 years. Come to think of it I'm not sure I'll be in a position to complain at all.

There isn't much that will hold information permanently. Digital media fail, CDs oxidise, tape degrades and prints through, paper rots, stone weathers away....

Old fashioned records are not bad if kept vertical and stress free and at the right temperature. Silver gelatine prints also last potentially for hundreds of years, especially if toned with Selenium or Gold. But there's not much that has any real garantee.

This one was made at Gawthorpe Hall near Padiham yesterday afternoon. It's maybe not obvious, but it's an HDR made up of 5 different images. Shot with Pentax K20D and the Takumar-F 28-80mm lens.
[IMG]http://i240.photobucket.com/albums/ff250/johnriley1uk/020-Gawthorpe-Lanscape.jpg[/IMG]

Yes, I think it makes it stronger. What's your feeling about it?

Welcome to the forum. You live in one of the finest places for photography so I think your new burst of enthusiasm should get off to a fine start.