Flowers in Visible and Ultraviolet A Light, Blurry, 1st Try...

1st try pairs of photos in UVA and visible light, UVA blurry. Focus position is a guess, UV focuses in a different place further away, with 50mm f/3.5 uncoated fused quartz lens and a #403 320nm to 380nm passing filter (very black). Exposure also a guess, +12 f/stops for filter. More experimentation needed.