Hey!
It's great to see somebody getting into photography! and I am happy to give any tips that could help
First of all, I want to point out that I use Canon so I don't know the technical side of Nikon (as in where on the camera to access the stuff I will talk about) but if you are confused your hand book/ google can help
There isn't any 'correct' cosplay settings to have on the camera as it differs depending on where you are. If you are starting out using the manual settings on the camera (that is controlling aperture and shutter speed) then I would suggest photographing people outside in day light. This would give you the best chance of getting good images at a nice exposure. I shall give you a few tips now that could hopefully help in photographing people as well as anything but the main tip I can give is to keep practising and it will all become very easy
1 - Make sure to focus on the persons face. Easiest way to do this is to make sure your camera's focus point is in the middle (google if you don't know how to set it on your camera). Focus on their face (half press the button) re- compose the shot so that the picture looks how you want it to look and then take the picture (fully press the button). Practice the focus technique on things around the house so you know how far to press the button etc
2- try modes such as Shutter Priority and Aperture Priority- these modes are present on most cameras and I think are represented by the S and A on the little mode wheel (again google if confused). These modes will give you half control over the settings and will ease you into the understanding of how the camera works. The settings I would use on these modes would be Shutter Priority: 1/125 and Aperture Priority: f8. These would be good settings for outside
3- take inspiration from other photographer- I still do this today. Look at different photographers to see different angles to photograph the cosplayers. Maybe they have a great weapon that you want to make the centre of the shot or maybe shooting from a lower angle will suit the stance. This all comes with practice but always think about the different angles you can shoot rather than just at your head height. Look for a ledge to stand on to gain a little height or get onto your knees to photograph the person. They will follow your camera so don't worry
4- Fill the Frame- the one thing that you can immediately see the difference with is when you fill the frame with the person. Unless the background says something about the cosplay I wouldn't include it. Zoom in or get closer and make sure that person fills the frame. Your shots will improve straight away. If it is a group shot, make sure the group is the main focus not the background. You don't want the background engulfing your photo.
5- Always ask and say thank you after- It always makes me smile when somebody asks for a picture and thanks me afterwards so I think it is just polite to do so. It always engages the person and they look at your camera which always makes a better picture. Pluck up the courage and talk to the person and don't feel shy to try more than one image just talk to them
I think thats all I shall give you for now and I hope that all makes sense and I apologise for the length. Just remember to keep smiling and practice on things around the place before the convention. Look to other cosplay photographs for inspiration and always look for those different angles that will change the photograph. I always find that getting closer to the subject makes for a better photograph.
Good Luck and happy clicking
