This videos may be of interest:

  • Opteka HD² 0.20X Fisheye Test
  • Opteka HD² 0.20X Professional Super AF Fisheye Lens Unboxing | 2011...
  • Opteka HD² 0.20x Fisheye Lens, ForeGrip Stabilizing Handle and Cano...
  • Opteka HD² 0.20X Professional Super AF Fisheye Lens test video
  • Weird lens reviews: Samyang 800mm f/8 Mirror, & 2x telecoverter (w...
  • Opteka 6.5mm fisheye lens for Canon unboxing and reivew.
  • Review Opteka 650 1300mm lens
  • The BIGGEST Lens I've Ever Used
  • Camera Lens Review (Mirror Lens) Opteka 500mm f6.3
  • Opteka/Samyang 650-1300mm with x2 teleconverter on Sony A7s
  • a6500 with 500mm Mirror Lens? Stabilized beast or junk?
  • Opteka 85mm 1.8 Review for Filmmakers $100 Prime Review
  • Unboxing and Review of Opteka 650-1300mm Unboxing
  • Cheap Macro Video, Opteka 10x Macro Lens.
  • Opteka HD² 0.20X Professional Super AF Fisheye Lens Unboxing | 2011...
  • Opteka HD² 0.20x Fisheye Lens, ForeGrip Stabilizing Handle and Cano...
  • Opteka HD² 0.20X Fisheye Test
  • Opteka HD² 0.20X Professional Super AF Fisheye Lens test video
  • Opteka 85mm 1.8 Review for Filmmakers $100 Prime Review
  • a6500 with 500mm Mirror Lens? Stabilized beast or junk?
  • Unboxing and Review of Opteka 650-1300mm Unboxing
  • Cheap Macro Video, Opteka 10x Macro Lens.
  • Review Opteka 650 1300mm lens
  • Weird lens reviews: Samyang 800mm f/8 Mirror, & 2x telecoverter (w...
  • Opteka 6.5mm fisheye lens for Canon unboxing and reivew.
  • Camera Lens Review (Mirror Lens) Opteka 500mm f6.3
  • Opteka/Samyang 650-1300mm with x2 teleconverter on Sony A7s
  • The BIGGEST Lens I've Ever Used
Here some other interesting products:
Here some other interesting products: