When that day arrives, I'll stop using Lightroom and find something else.

An Android powered tablet caters for 95% of my computing needs nowadays, Linux + Darktable could satisfy the remainder.

Is this still a photography forum?

Carl, the apparent sharpness, or not, is probably down to my panning skills rather than the lens and I may have forgotten to turn on SR after removing the Sigma.

Also, they look much sharper in Lightroom than they do here, I suspect the re-sizing has something to do with it.

The near static shots I took at the weekend with both lenses seem to be equally sharp.

Velocity Racing Spain and the Circuito de Velocidad de Cartegena held their first Festival of Speed last weekend, the circuit has the only oval racing circuit in Spain . . . so far.

These are some of my images from that weekend, showing the cars involved in a Time Attack race using the whole of the 3.5Km long circuit.

The two red beasts are Formula 3 Ferrari's.

The first 4 images were taken with he DA* 60-250mm lens, the remainder with the Sigma 70-200mm EX DG OS HSM lens. All were taken with the K-5 II.

Of the last ones to sell on eBay, one went for £144, the rest were £300 plus.

That of course only illustrates how much people are prepared to pay, and not necessarily how much the lens is worth.

That add relates only to the K30 body, nowhere does it mention anything about lenses.

Whilst the body may have very good weather/dust/sand sealing, the budget WR lenses are not likely to offer the same protection. For that, you'd need to use the DA* range of lenses.

Financial suicide I think. Photographers will simply choose something else to use, leaving only graphic designers using their software until they find an alternative.

Very nice indeed. You do seem to have some dust on the sensor though. Look at the top centre of the first goose shot and you'll see a little grey 'dust bunny'.

Tricky problem that might require the lens to be dismantled to clean the sand out.

The WR means Weather Resistant, that doesn't mean sand proof.

That's a lesser spotted timber dragon. Consider yourself lucky to escape in one piece, they're vicious things.

Their bite is not venomous but the splinters they leave behind are to be seen to be believed.