There have been reports of some Canon 750D cameras experiencing issues such as autofocus problems, overheating, and battery drain. However, not all Canon 750D cameras are defective, and many users have had positive experiences with this model. It is recommended to research and read reviews before purchasing to ensure you are aware of any potential issues. **

There is no information provided to determine if the Canon 750D has gotten wet. If the camera has been exposed to water, it is important to immediately remove the battery and memory card, dry the camera thoroughly, and seek professional assistance to prevent any damage. It is recommended to avoid exposing electronic devices like cameras to water to maintain their functionality. **

The Canon 750D is a good option for astrophotography, especially for beginners or those on a budget. It has a 24.2-megapixel sensor, which is capable of capturing detailed images of the night sky. Additionally, it has a good ISO range (100-12800) which allows for capturing images in low light conditions. However, for more advanced astrophotography, some users may find the 750D's noise performance at higher ISOs to be limiting. Overall, the Canon 750D can produce decent astrophotography images with the right techniques and accessories. **

The Canon EOS 750D is compatible with Canon EF and EF-S lenses. This means you can use a wide range of Canon lenses with the 750D, including both EF and EF-S lenses. This gives you the flexibility to choose from a variety of lenses depending on your photography needs and preferences. **

To charge the battery of the Canon 750D, you will need to remove the battery from the camera. Use the provided battery charger and plug it into a power outlet. Insert the battery into the charger and wait for it to fully charge. Once the battery is fully charged, remove it from the charger and insert it back into the camera. **

The Canon EOS 750D is compatible with Canon EF and EF-S lenses. This means that you can use a wide range of lenses with this camera, including both full-frame and APS-C format lenses. Additionally, the camera is also compatible with third-party lenses that are designed for Canon EF and EF-S mounts. This versatility allows photographers to choose from a variety of lenses to suit their specific shooting needs. **

For your Canon EOS 750D, you can consider the Canon EF-S 60mm f/2.8 Macro USM lens. This lens is specifically designed for APS-C sensor cameras like the 750D and offers a 1:1 magnification for capturing detailed close-up shots. It also has a fast and quiet autofocus system, making it suitable for both macro photography and general use. Additionally, the 60mm focal length provides a versatile working distance for capturing small subjects. **

There could be several reasons why the Canon EOS 750D is not recognizing your external microphone. First, ensure that the microphone is compatible with the camera and that it is properly connected to the camera's microphone input. Additionally, check the camera's settings to make sure that the external microphone input is enabled. If the microphone still isn't recognized, there may be an issue with the microphone itself or the camera's microphone input. In this case, it may be necessary to troubleshoot or seek professional assistance to resolve the issue. **