Light reflections in Camera During Night

Does this Blue/Green Dot appear on every photo on the same spot same size? If no read the Wiki article below. If yes then clean your camera surface and if that does not resolve the issue then Contact Apple for support and service - Apple Support 

Lens flare refers to a phenomenon wherein light is scattered or flared in a lens system, often in response to a bright light, producing a sometimes undesirable artifact within the image. This happens through light scattered by the imaging mechanism itself, for example through internal reflection and scattering from material imperfections in the lens. Lenses with large numbers of elements such as zooms tend to exhibit greater lens flare, as they contain a relatively large number of interfaces at which internal scattering may occur. These mechanisms differ from the focused image generation mechanism, which depends on rays from the refraction of light from the subject itself.

Lighting effects and needs

Lighting plays a crucial role when capturing indoor photos or videos as it greatly impacts the overall quality and aesthetics of the final result. Here are some reasons why lighting is essential in indoor photography and videography:

1. Adequate lighting ensures that your subject is properly exposed, meaning it is neither too bright nor too dark. Sufficient light helps to maintain clarity, detail, and sharpness in your images or footage, allowing viewers to see the subject clearly.
2. Appropriate lighting conditions help to reproduce accurate colors in your indoor photos and videos. Different light sources can have varying color temperatures, such as warm (yellowish) or cool (bluish) tones. Understanding and controlling the lighting in your environment enables you to achieve the desired color accuracy and white balance.
3. Properly balanced lighting helps to minimize harsh shadows or blown-out highlights, creating a more balanced and visually pleasing composition. By strategically positioning light sources or using reflectors, you can control the shadows and highlights to enhance the overall depth and dimension of your indoor shots.
4. Lighting has the power to set the mood and create a specific atmosphere in your indoor visuals. For example, soft and diffused lighting can generate a calm and intimate ambiance, while dramatic or directional lighting can evoke a sense of mystery or tension. Understanding how different lighting techniques influence the mood allows you to craft the desired emotional impact in your photos or videos.
5. Being able to control the lighting in indoor settings provides you with greater creative freedom. You can experiment with various lighting setups, such as using natural light, artificial lighting, or a combination of both. Additionally, manipulating the direction, intensity, and color of light allows you to create unique and captivating visual effects, enhancing the storytelling aspect of your indoor photography or videography.

Considering these factors, investing time and effort into understanding and utilizing proper lighting techniques will significantly enhance the quality, impact, and overall aesthetic appeal of your indoor photos and videos.