You can just use a screw in filter David, the R72 is the one I have. It blocks all visible light and the viewfinder image will be black. Therefore, tripod is best, focus before you put the filter on. The lens will focus IR at a different point to visible light, so ideally the point of focus would have to be shifted, but if you use a small aperture then you can get away with this. Older lenses have an IR correction mark. Focus then shift the focus to the red mark.

Exposure times will increase. The amount of IR light varies enormously, but the traditional subjects are well known so have fun.

I think we need some examples of what the problem is, so we can make some meaningful suggestions. As it stands, it is very hard to see how a lens can be faulty in terms of its saturation.

It sounds like a processing problem to me, or a monitor problem. It's not a lens problem. The macro lenses deliver results like the rest of the range.

The later bodies are relatively insensitive to IR, so the *istDS is a good choice.

e-mail modified to prevent spamming.

You can't upload more than one at once, but you can upload one and then after that's complete you can upload another as many times as you like.

I wonder if it means that we can no longer lay any claim to "photography" as a pure form? Art has no rights and wrongs, certainly in terms of its intent and form, but there are different layers of skill. How much skill is there is pushing a button for a Photoshop Action? Or using a preset in Photomatix?

On the other hand, if the image content and technique are a viable and meaningful intent on the photographer's part, then why should it not be automated to produce the desired effect? It is, however, a very different level of performance, so to speak, that painting a grand canvas of some rolling landscape.

Many thanks Glyn, much appreciated!

I think the term might be "Imaging" these days Nigel!

I do agree Kseries that all aspects of an image should be our own, not a collection of our own plus miscellaneous royalty-free images from the internet.

I was told though that some college and university courses actually teach imaging using only internet sourced images. If that's right, then students could be set up with the notion that it's OK, right from the start,