Prurient - loved the railway trackshot, nice fit too.
Originally Posted by Dorje
Right, let me rephrase.... the minimum f-stop is usually variable on a zoom lens depending on focal length. Totally normal.
Yes - maintaining a fixed wide aperture over a full zoom is pricey and adds a lot of bulk. I've got an old 80-200 f2.8 zoom and it's a great lens, but it's probably the size and weight of three or four bridge cameras put together.