【User Instraction】: This is a FULL MANUAL lens, NO Electronic Contacts, your camera will not detect the lens when mounted, that's why we can't press the shutter. Tips to use our Manual Lens: Set the mode dial to Manual (M). | 【Versatile Portrait Lens 85mm】: As a portrait lens, the 85mm lens makes it easy to take half- and full-body shots. It can also take close-ups of faces. Ideal for street photography. | 【Large F1.8 Aperture】: The large 1.8 aperture lens delivers fantastic background bokeh. Large aperture with pleasing bokeh to further enhance shallow depth-of-field images. | 【Manual Focus】: Please rotate the focus ring of the lens to achieve focus. Manual camera lenses cannot display the aperture value in the camera. Shutter speed and ISO need to be adjusted to take a beautiful photo, so it is recommended to use it at "M". | 【EF Lens for Canon DSLR】: 85mm F1.8 Manual Portrait Lens Compatible for Canon EOS Rebel T8i T7i T7 T6 T6s T6i T3i T2i SL3 SL2 850D 90D 250D 2000D 4000D 200D 9000D 800D 1300D 80D 760D/8000D 750D 1200D 70D 100D 700D 650D 600D 1100D 60D,1DX 5D 6D Mark II/III/IV etc | 【Note】: EF mount lens is not suitable for Canon M&R series cameras. Please check the camera mount carefully. Please feel free to contact us for more information on the settings and using. Meanwhile, manual lenses all need to be used by buyers with shooting experience. It is not recommended for beginners.