Fisheye lens of projector is a wide-angle lens that takes in an extremely wide, hemispherical image. The focal lengths of fisheye lenses depend on the film format. Fisheye lenses achieve extremely wide angles of view by forgoing a rectilinear image, opting instead for a special mapping (for example: Equisolid angle), which gives images a characteristic convex appearance. A panorama by rotating lens or stitching images (cylindrical perspective) is not a fisheye photo.
Fisheye lens showed in picture is used for SANYO projector XM-1000C, 5000 Lumen. We could manufacture and design kinds of fisheye lens as reqeusted.
VY Optics can also produce other photographic lens and accessories, such as camera telephoto lens,fisheye lens, wide angle lens, adapter ring, adapter tube,star filter, lens hood, lens cap and so on. Each item are available for OEM service.
|Range of diameter||Dia.0.7mm-Dia.400mm|
|Range of curve radius||R1.5-R∞ etc.|
|Tolerance of diameter||+/-0.1, +/-0.01, +/-0.005 etc.|
|Surface accuracy||λ , 1/2λ , 1/4λ , 1/10λ etc.|
|Tolerance of Thickness||+/-0.1, +/-0.05, +/-0.01 etc.|
|Aperture N||5, 1 etc.|
|Irregularity ΔN||2, 1, 0.5, 0.2 etc.|
|Surface quality||60/40, 40/20, 20/10, 10/5 etc.|