Wrong forum sorry
when I said reflections I really meant haze

You'll get lots of people saying not to use UV filters because they degrade image quality. Which is true of cheap ones for sure. I'm not convinced you'll notice the difference with expensive ones (I don't anyway). So... if you're going to get one, get a good one (have a look at B+W MRC UV or protective filters).

I think I've got a fairly pricey Hoya UV filter on both of my lenses.

I haven't taken any comparison shots, but they are supposed to reduce haze (& I think increase contrast).

You do get people recommending that you don't fit them as they degrade image quality, but I haven't noticed any degradation with the images I have taken and I can't afford replacing a lens, because I've scratched the front element, so it's a no-brainer.

The only lenses I probably wouldn't get them for would be a macro lens that normally have quite a recessed front element.

but they are supposed to reduce haze

In general digital cameras aren't significantly sensitive to UV so you won't see any reduction in haze.

You do get people recommending that you don't fit them as they degrade image quality, but I haven't noticed any degradation with the images I have taken and I can't afford replacing a lens

I'd agree that you'll probably not see any difference in general, but it is possible that you'll get more flare when shooting towards the sun due to the filter.

I don't use then myself, but always use lens hoods to avoid bashing the front element into things. I think this provides ample protection unless you're shooting in really filthy conditions with mud literally spraying on the lens, but then you might well not put your SLR in such situations anyway.

I used a cheapish UV filter (Hoya green) on my Canon 40D/ 17-85 combo, and I tried several with/without comparisons. I could not tell the difference even zoomed in to 100% on the computer.

I think unless you get a really bad filter then you will only see a difference on top end lenses that give a really good resolution/image quality.

The filter save me on many occasions when out biking when mud got on the front of the lens, and when I forgot to put the lens capback on before putting the camera into its bag. With the filter on I just wiped it clean with my glove rather than worrying about the lens element.

A lens hood is a really good idea too, keeps rain off the front element.

I have a top of the range Hoya filter on my 18-200VR lens.Cost about £40 on Ebay. I see no reason not to use one. I guess its a bit like a seatbelt, ie only of benefit in an accident!

I used a cheapish UV filter (Hoya green) on my Canon 40D/ 17-85 combo, and I tried several with/without comparisons. I could not tell the difference even zoomed in to 100% on the computer.

Cheers for all the info - I've goone for a Hoya Pro-1 multi-coated job for £28 off Amazon. Will see how it goes - just ike the idea of not scratching the lense when I have mud/dirt on my hands:)