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As far as a wide angle zoom is concerned, the Tokina 19-35mm f/3.5-4.5 AF 193 was highly rated for performance in its day, pretty good even wide open, and very impressive at smaller apertures. Made for FF use on 35mm film bodies. It is the least expensive of such Tokina models, very modest in price, but the plastic body quality is of a sturdy nature for this type of construction- just look for one in perfect shape.
It will be difficult to come up with good wide angle performance to beat your DA 18-55mm kit lens, which is designed for modern APS-C DSLR use, especially at mid apertures, without spending some money. Be sure to watch focusing. This kit lens is not all that reliable for AF. For a better performance at wide angle, you could look at some wide angle prime lenses (non-zoom) in the 12-15mm range. There are some manual-focus types out there having very good reports.
As to a wide-angle modern zoom lens made for APS-C bodies, I have the Sigma 10-20mm f/3.5 (capable of f/3.5 all the way through the zoom range) EX DC HSM of which I think very highly.
Last edited by mikesbike; 04-13-2020 at 09:29 PM.