The Tate Britain obviously loves JMW Turner - this gallery is the music equivalent of a rock snob telling you that The Beatles were the beginning and the end of music.

Yet, in both cases, sometimes you think you've had enough of them, then you approach them with fresh eyes (or ears) and then you see what all the fuss is about once more again.

Actually, this small exhibition has an ulterior motive.

First of all, let me explain that The Three Rigis in question are a trio of watercolour pictures created by Turner in 1842 that captured the eponymous Swiss mountain at various stages of the day, in an effort to see how the same place can look different depending on the time of the day.

Entitled Blue', Red' and Dark', these pictures are all unique, though the Blue' and Dark' share closer similarities as they both illustrate the mountain at dawn, while Red' is set at dusk.

All three have their own magic, and anyone who knows Turner will know what I mean.

For those who don't, Turner's brilliance is to not only capture the image or the scene but to emphasise its mood, feeling and sensual qualities.

The result are images that aren't textbook recreations but often feel even more faithful to the scene in ways that a straight copy could ever hope to attempt.

Throughout this display you can look at sample versions of the three pictures that were presented for consideration to potential patrons, while others are rough sketches of the final outcome.

From rudimentary visions to perfect completed product, it's interesting to see the making of three minor masterworks, the best (by a fraction) of which is Blue', which happens to be the central focus of this display's ambition.

Serenely capturing the glow of the morning, this is a lovely picture that's actually in danger of leaving this country.

Recently purchased for a record-breaking figure of £5.8 million (pending export licence permission), the Tate has been given a chance to raise enough money to be the highest bidder. So far, it has been doing its best to get the money together to acquire the painting.

Right now you can see the pictures at the Tate, but the gallery has only until March 20 to raise enough money.

After viewing the paintings for yourselves, you can donate money to raise the total (alternatively you can donate online).

It is indeed a lovely work, worth seeing.

l The Three Rigis exhibition is running at the Tate Britain until the 20th March. Admission is free. Nearest tube station is Pimlico (Victoria Line). Opening hours are from 10am to 5.50pm. For further information call 020 7887 8888 or visit www.tate.org.uk/britain JIMI FLETCHER