The SMC Pentax-FA 24-90mm f/3.5-4.5 AL [IF] lens is a superior kit lens from around 2001, a little before the arrival of the crop sensor Pentax DSLRs. Thus it is designed for film cameras and does not sit particularly well with the APS-C format, where it would be a “35mm equivalent” 36-135mm; perhaps not wide enough for a general-purpose lens. However, it does sit very well as a standard zoom for full-frame and could be an interesting option compared to the expensive, heavy and bulky HD Pentax 24-70mm f/2.8 from the current range.
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https://www.ephotozine.com/article/smc-pentax-fa-24-90mm-f-3-5-4-5-al–if–vintage-lens-review-34984