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Dear Customer, Thank you for your question. Please check the following steps to setting the focus: (Do not look at too close objects) Step 1. Cover the right objective lens with your hand or close your right eye, rotate the central independent focusing wheel until the image in the left eyepiece is sharp and clear. Step 2. Now cover the left objective lens or close your left eye, rotate the right eyepiece focusing wheel to adjust the diopter of the right eye until the captured image is sharp. 

This solar security camera needs to be constantly connected to 2.4GHz WiFi to work. If you want to save the recorded video, please buy an SD card or cloud, the new videos will overwrite old videos automatically. 

No, you need to buy it separately, which is also available on K&F Concept. 

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