【E Mount Full Frame Lens for Sony】It's designed for full-frame Sony E-Mount cameras, supports Auto Focus and Manual Focus, it's quipped with quiet DSM stepping motor, can quick start-stop response, high focusing accuracy, and quieter focusing action, which is suitable for photo shooting and video recording. | 【F1.8 large aperture】Flexible use of F1.8 large aperture, easy to obtain soft blur effect, you can also use low sensitivity and higher shutter to shoot in low light environment. | 【USB Type-C firmware upgrade】Equipped with a USB Type-C interface, you can download the latest firmware to upgrade the lens to keep the lens at its best performance. At the same time, the lens adopts high-precision metal bayonet and gold-plated contacts, which can effectively improve signal conductivity and corrosion resistance. | 【Equipped with quiet DSM stepping motor】Through the AF/MF focus mode switch, you can quickly switch the focus mode. And the lens is equipped with a low-dispersion glass lens, which can effectively suppress the dispersion problem. | 【9 Optical Lenses in 8 Groups】The lens adopts an optical structure of 9 lenses in 8 groups, and the lens has a nano-multilayer coating process, which can effectively increase the light transmittance and suppress back-light ghosts and glare. And the lens is designed with 7 circular aperture blades. It can shoot circular diffuse spots. It can also take pictures with 14 star effects if the aperture is appropriately reduced.

🏆【Classic 50mm, F1.8 large aperture】With sufficient light input, it is easy to obtain a blurred focal area, highlighting the main body of the portrait. Fearless of low light environments, shooting can be done with low sensitivity and high shutter speed. | 🏆【DSM Digital Stepping Motors】Compared with traditional DC motors, digital stepping motors (DSM) have fast start-stop response, high focusing accuracy, and quieter focusing actions, which are suitable for photo shooting and video recording, It has Fn custom function button, the function menu or shortcut operation can be quickly used to improve the efficiency of creation. | 🏆【USB Firmware Upgrade】With a USB Type-C interface on the lens, you can download the latest firmware for upgrade to keep the lens at its best performance. Various aberrations can be compensated by an aspherical lens integrated, Equipped with a low-dispersion glass lens,which can effectively suppress the dispersion problem caused by wide-angle. | 🏆【8 elements in 7 Groups】The structure which is composed of 8 elements 7 groups with nano-multilayer coating effectively improves the light transmittance and suppresses back-light ghosts and glare. | 🏆【Metal Bayonet and Contacts】 The use of high-precision metal bayonet and gold-plated contacts effectively improves signal conductivity and corrosion resistance. At the same time, it allows the camera and lens to maintain reliable communication, and realizes functions such as Auto Focus, aperture control, and EXIF information transmission.

🏆【YONGNUO 17mm lens for M4/3 mount】YONGNUO YN17MM F1.7M lens for M4/3 mount. 17mm focal Length; With the F1.7 large aperture, you can easily achieve a soft and beautiful blur effect. Allows you to shoot at low sensitivity and higher shutter speeds even in low-light environments. With 10 optical lenses in 9 groups structure design and nano multi-layer coating process. | 🏆【Small size and light weight】About φ65.8×77.8mm; The net weight is about 180g, not only easy to carry, but also suitable for time hand-held shooting. The compact lens allows you to shoot outdoors all day long. Equipped with 2 low dispersion lenses，which can better suppress the dispersion problem caused by wide angles. | 🏆【F1.7 large aperture, support AF and MF Mode】 With 10 optical lenses in 9 groups structure design and nano multi-layer coating process, presenting you high-definition picture quality, effectively improve light transmittance and suppress backlight ghosting and glare. It can capture circular diffuse spots. Reducing the aperture appropriately, you can take photos with a 14-starburst effect. | 🏆【High precision STM stepper motor】This 17mm lens equipped with high speed and high precision STM stepper motor. Cooperate with brand new control circuit, achieve fast, quiet and precise focus. Equipped with a dust-proof and water-proof rubber ring, Gold-plated contacts, supports EXIF information transmission, also has metal bayonet, gold-plated contacts, which can iprove the signal transmission speed of the lens. Improve the corrosion resistance of the lens, making the lens more durable. | 🏆【Compatible with Olympus and Panasonic Camera】Olympus: E-M5 Mark II, E-M5 Mark III, E-M10 Mark III, E-M10 Mark IV, PEN-F, E-PL9, E-PL10; Panasonic: G100, GH5, G9, G95, G85, GX9, GX85, GF-10, GF-9.

【F1.8 large Aperture and 7 circular aperture blades】Flexible use of F1.8 large aperture, easy to obtain a soft and beautiful blur effect. In low light environment you can also use a low sensitivity and high shutter for shooting.With 7 circular aperture blades, circular dispersion spots can be shot, and 14 star awn. | 【USB Firmware Upgrade 】Equipped with USB interface, you can download the latest firmware from Yongnuo official website to upgrade the lens. | 【8 elements in 7 groups lens construction】 Adopts 7 groups of 8 pieces of optical structure design, nanometer multi-layer coating process of lens can effectively improve the light transmittance and inhibit the ghost image and glare of backlight. | 【AF/MF Focus Mode Switch and Low dispersion glass lens】 Auto focus and manual focus are supported,you can choose the focus mode according to your shooting requirements. Adopts one low dispersion glass lens,which not only better suppress the dispersion problem, but also further improve the secondary spectrum. | 【Silent Stepping Motor and electronic focus rings】This quiet Digital Stepping Motor(DSM ) drive system makes the lenses ideal for use when shooting video. Adopts electronic focus rings, supplemented by appropriate damping, which can provide smooth manual focus experience of high precision.

【Features】Equipped with 1 low-dispersion glass which can effectively suppress the dispersion problem.Further improvement of the second order spectrum,7 circular aperture blades, Nanometre multi-layer coating process,Gold-plated contact&High-precision metal mount. | 【Design enhances creative experience】The rear shell adopts spot spray process,which is comfortable to hold and effectively reduce the traces of fingerprints, making it easy to clean. | 【Design enhances creative experience】The rear shell adopts spot spray process,which is comfortable to hold and effectively reduce the traces of fingerprints, making it easy to clean. | 【Excellent focusing performance】This lens uses a CNC stepper motor (DSM) with excellent focusing algorithm, resulting in low focusing sound and high, fast, and accurate focusing accuracy. | 【Classic 50mm, F1.8 large aperture】With sufficient light input, it is easy to obtain a blurred focal area, highlighting the main body of the portrait. Fearless of low light environments, shooting can be done with low sensitivity and high shutter speed.

【Z Mount Full Frame Lens for Nikon】This lens is designed for Z mount mirrorless camera, the maximum diameter and length is about 68×89mm, the net weight is about 405g, the light-weight design is not only convenient to carry for outdoors, but also good for long-term handhold shooting and video recording. | 【F1.8 Large Aperture and 7 Aperture Blades】Flexible use of F1.8 large aperture, easy to obtain soft blur effect to emphasize the subject. The lens is designed with 7 aperture blades. It can shoot circular diffuse spots. It can also take pictures with 14 starburst effects if the aperture is appropriately reduced. | 【Equipped with Fn Function Key and AF/MF Focus Mode Switch】Equipped with Fn function key, setting the button can quickly call up a function menu or execute a shortcut operation, improving creative efficiency. Through the AF/MF focus mode switch, you can quickly switch the focus mode. | 【Optical Design of 9 Lenses in 8 Groups, Nano-multilayer Coating】The lens adopts an optical structure of 9 lenses in 8 groups, and the lenses are all made of glass with nano-multilayer coating process ,which can effectively increase the light transmittance and suppress back-light ghosts and glare. | 【USB Firmware Upgrade and Quiet DSM Stepping Motor】Equipped with a USB Type-C interface.You can download the latest firmware to upgrade the lens to keep the lens at its best performance. Digitally controlled stepping motor (DSM) has quick start-stop response, high focusing accuracy, and quieter focusing action, which is suitable for photo shooting and video recording.