Throughout these reviews, I have shied away from third-party lens makers. But I have a long history with third-party lenses and often with good results. My favourite lenses are from my first SLR system, the Minolta SR-T 102, a Kiron 70-150mm f/4 lens and a Vivitar 75-210mm f/3.5. Although that Vivitar is different from today, the Series 1 70-210mm f/3.5 in many ways. The biggest is the size and function; the Series 1 is a beast and a lens that surprised me that they even released the lens in an OM-Mount. Lens Specifications Make: Kiron Model: Vivitar Series 1 70-210mm 1:3.5 Macro Focusing Auto ZoomRead More →