LENS FEATURE 1. 3MP resolution lens, 1/2.5 inch, optical glass and metal process. 2. Lens is vari-focal 2.8-12mm manual focus and zoom, about 5-20 meters' view. 3. The IR-Filter included, very suitable for action cameras or sport cameras. 2.8-12mm Lens on EKEN H9R 4. The IR-Filter is inside the lens, it avoids rupture caused by contact between the IR-Filter and the camera case or lens holder. Technical Specification Model: M12-02812-3MP-C-FL Mount: M12 Resolution: 3 Megapixel Image Form 1/2.5" Focal Length: 2.8-12mm MBF: 6.0mm BFL: 7.7-13.9mm FLANGE BFL: 13.5mm IRIS: Fixed M.O.D.: 0.3m Weight: 33g Dimension: ?28x40.1mm Optical Distortion: 59.4%~-5.1%(1/2.5") Field Angle DxHxV(): 135 x108x81(wide) / 43.4 x34.7 x26 (tele) (1/2.5") Operating temperature: -20C ~+ 60C Shipping 1.If you need to buy in bulk, please contact, we will reply in 24 hours. 2.We are always working hard to ensure your package arrives as soon as possible. Please understand that some factors like weather, high postal traffic, and the performance of shipping companies are outside of our control. 3.Usually product Reaches after about 12-45 business days depending on destination. If you have not received your shipment within 45 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Refund or resend product will be offered if item still not received. 4.We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important. We ask you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns. It is impossible to address issues if we do not know about them! THANK YOU :)