Certainly, for my purposes, the early answer linking fast glass to the quoted aperture for the lenses was what was needed - but then that's just me .

I'm trying to fill in a lot of early gaps , and I prefer to take things in slow stages so that I can become more confident .

Terminology is something that you need to learn and unfortunately advanced folk can [ please note 'can' -- not all are guilty of this ] forget that learners need to take things in stages .

Indigestion can be a very uncomfortable problem

A bit like my constant 1 unread PM - and they are all read - one of these inexplicable things .

THOUGHT - has the hamster been fed recently ? Does his water bottle have enough alcohol in it ?

I'm still amused by the first one - the Wedding.

I'm fascinated by the onlookers - the guy who is digging in his bag for something , the one sitting on the top of the wall/parapet with his chin propped on his hand while he stares intently at the girl .

It's a real study in peoples' reactions

John - you said


Yes that makes sense since it's the 'hole' made as the 'blades' open that is the actual aperture through which light enters .

I'm still chewing over the next bit

OK - since this has now got rather further than I think I'm ready for - let me back track and summarise using my lenses

18-55 DA L fstop 3.5 to 5.6

50-200 D-Xenon fstop 4 to 5.6

40mm Ltd fstop 2.8

So the fastest lens I possess is the 40mm Ltd [ which since it's a different class of lens doesn't really surprise me I have to say] .

Next job is to try and take the rest in and make sense of all that information from Amilner .

To me this is much better

Now we have her with a face that's full of life

Err James - there seems to be a problem with Flickr - it says it's currently unavailable

OK now on to lens questions .

I keep hearing folk talking about 'fast glass' .

Sooooooo - just what is 'fast glass' ?

Now remember - for me you have to make it simple and non-geeky

The next idiot question will come once this bit of nomenclature is in my head

hmmm - suppose we will also have to watch now for an update for the K-xs


Memo - check for new batteries - no problem

check for a new Card - yup have a split new unused one

Remind me to try and grab a pic of the TV set up in my sitting room It's a spaghetti junction of wires and machines , TV and 6 ( I think) boxes for one thing or another, and cables and plugs All I want is a TV that works

I dare not touch anything since I don't know how it was all connected up