China Lens Hood Lens Shade Camera Lens Hood

>> Product Description
Lens hood or lens shade is adevice used on the end of alens to block the sun or other light source in order to prevent glare and lens flare.
The geometry of the lens hood can vary from aplain cylindrical or conical section (much like alamp shade) to amore complex shape, sometimes called apetal, tulip, or flower hood. These more complex shapes of lens hood take into account the final image's shape and aspect ratio. [3] This allows the lens hood to block stray light with the higher portions of the lens hood, while allowing more light into the corners of the image through the lowered portions of the hood, thereby reducing the amount of vignetting in the final image.
Ideally, lens hoods should increase in length, and therefore in efficiency, as the focal lRiveter ength of the lens increases and the angle of view reduces. Lens hoods are more prominent in long focus lenses because they have asmaller viewing angle than that of wide-angle lenses. For wide angle lenses, the length of the hood (away from the end of the lens) cannot be as long as those for telephoto lenses, as alonger hood would enter the wider field of view of the lens.
VY Optics could manufacture varied size of lens hood or lens shade, picture shown is 37mm. OEM is available, too.
All lens hoods are fit for Canon, Nikon, Olympus, JVC, Kadak, FUJI, Casio and so on. Lens hood or lens shade is adevice used on the end of alens to block the sun or other light source in order to prevent glare and lens flare.
The geometry of the lens hood can vary from aplain cylindrical or conical section (much like alamp shade) to amore complex shape, sometimes called apetal, tulip, or flower hood. These more complex shapes of lens hood take into account the final image's shape and aspect ratio. [3] This allows the lens hood to block straAir Clean Equipment y light with the higher portions of the lens hoDetector od, while allowing more light into the corners of the image through the lowered portions of the hood, thereby reducing the amount of vignetting in the final image.
>> SpecificationRange of diameterDia. 0.7mm-Dia. 400mmRange of curve radiusR1.5-R∞ etc.Tolerance of diameter+/-0.1, +/-0.01, +/-0.005 etc.Surface accuracyΛ, 1/2λ, 1/4λ, 1/10λ etc.Tolerance of Thickness+/-0.1, +/-0.05, +/-0.01 etc.Centration+/-2′, +/-1′ etc.Aperture N5, 1etc.Irregularity ΔN2, 1, 0.5, 0.2 etc.Surface quality60/40, 40/20, 20/10, 10/5 etc.
>> Company Introduction
>>Related Products
VY Optics could also manufacture and design other optical elements, includingachromatic lens,dome lens,filter,prism,ball lens,cylindrical lens,optical mirrors,spherical lensandrod lens, we can fabricatehigh-precision lensas per your requested.
>>FAQ
Q:
·We'd like to supply samples for free if we have it in stock, but we don't pay freight.
Q:
·Regarding inventory, it is 3 working days;
·For customized one, it's about 15-25 working days, depended on exact quantity and order date.
Q:
·Yes, to customize special optical element and coating are available here.
Q:
·T/T, Alibaba online assurancBuilding Hardware e payment, MoneyGram, West Union, Paypal and so on.
Q:
·VY Optics is a reliable supplier not only audited on Alibaba, but also on Made-in-China, reputation and quality is life of our company, and we support Alibaba Trade Assurance.
Q:
&middHeating, Refrigeration & Temperature Control ot;Low value sample: EUB, E Express of China Post, which is cheap;
·Light weight parcel: DHL, FedEx, TNT, UPS, EMS, SF Express, China Post;
·Heavy cargo: by air or by sea, ship on pallet.
Our company enjoy a considerable discount owing to long-term cooperation with courier company.