For one general-purpose lens, it is hard to beat the DA18-250 or its Tamron twin, both now out of production but readily available used. The 18-250 has better performance than any of the 18-200 or 28-200 lenses I know of. But for 'wildlife' your best budget option is probably the recommended DA55-300. If your wildlife is lethargic, the FA100-300 (silver) is sweet, and cheap at about US$100.
Land-sea-sky-town-etc 'scapes are quite different. Except in seismically active areas, most land+town 'scapes don't move around too much, so a slower wider manual-focus prime lens is quite suitable. For the least distortion, use a prime in the 28-31mm range. For wider pictures, shoot a series and stitch them together into a pano. For sharpest images, use a firm tripod, and slow shutter, and remote control. If a bit of edge distortion is OK, try wider MF primes -- I'll use a 24/2.8 or 21/3.8, stopped-down to f/8 for greatest clarity.
For flexibility, modern AF ultrawide zooms RULE! The DA12-24 is a bit costly; the Sigma 10-20s are well-loved once a good copy is obtained -- these have known QC issues. I recommend the Tamron 10-24, with good optics & price & warranty. I use it in VERY tight spaces at 10-12mm, for from-the-hip street shooting at 14-16mm, and for 'scapes at 22-24mm.
|