Lightdow | Lightdow Telephoto Manual Mirror Lens Fixed Focus 500mm F6.3+2xTeleconverter+T2 Mount Adapter Ring for Sony Nikon Canon Pentax

Description:The 500mm f/6.3 Mirror Lens is a high-quality, computer designed product that incorporates the merits of both reflex optics and refraction optics. This combination provides the user with an extremely sharp picture with minimum color abberation.While this manual focus lens is designed for high definition telephoto photography, it is also one of the most affFeatures:Amazing 500mm focal length at an affordable price even at 500mm down to a remarkable 6.1 ft.Optimized for use with digital SLR cameras using a T-Mount adapterSurprisingly lightweight and compactVersatile enough for use with wildlife, sports, nature and surveillance photographySpecification:Maximum Aperture: f/6.3Focal Length Type: ZoomFocal Length: 500 mmFocus Type: ManualFilter size: 95mmHow to use the item:Note:set the camera to M model becasue this is a manual lens .when this item is mount to Nikon DSLR or Sony DSLR camera(some models),the camera will give a notice :lens not attached,what need to do next is that the buyer have to set the camera1)Set the camera  to M model because this is a manual lens2)set the camera to Quiet release shutter (No lens Release shutter),then you can use this item to take pictures Package Contents:500mm f/6.3 Mirror Lens x1Adapter Ringx12xTeleconverter x1