The one main problem with this Vivitar 28mm f/2.8 lens is that it is CHEAP. There is a huge difference between the image quality of this lens and my 50mm Pentax lenses. I think I’m going to start looking for a 31 or 35mm Pentax lens for very closeup work. Though it is silly of me to attempt live macro work with anything under 70mm.
This photo is not cropped. Feel free to click on it to view a much larger version.