>>2868117If you don't mind manual focus pick up a macro-takumar and an adapter ring
I'd swear by the first version 50mm f4 macro-takumar and I picked it up for five bucks at goodwill in flawless condition
If it's just too old school for you the HD DA 35mm F2.8 Limited Macro and the 100mm D FA macro are fantastic
I hated the kit lens on my k-50 as well. Another tip I'd have is to grab the DA 35mm 2.4. It's probably the best all around prime but if you're planning to get the 35mm macro stick with that instead