Hi there, glad to hear you're going to Iceland, I'm sure you're gonna have a great time! My girlfriend is Icelandic so I go about 5-6 times a year. February is an amazing time to go, infact I'm going there in feb as well! It is almost garunteed to snow in feb, a lot! So pack very warm things and a serious outdoor coat like mentioned. If you're going lights hunting you will need VERY warm clothes, as it can easily reach -15 without windchill!
Your camera should be fine but batteries are an issue in very cold weather, just remember spares and your charger!
Places to go, right there's a lot! If you're hiring a car which is the absolute best thing to do out there definitely visit some of these places, they arn't that far from Reykjavik:
Gullfoss waterfall
Geysir (right next to gullfoss)
Þingvelli national park (this should be on the way to gullfoss&geysir absolutely stunning her, but beware in feb the road gets closed a lot due to snow!)
Seljalandsfoss (a bit further but an absolutely stunning waterfall that you can walk behind, a must see!)
I recommend if you're going to Seljalandsfoss you might as well make a day of it and go to Jokulsarlon a glacial lake at the bottom of Europe's biggest glacier, Vatnajokull. You can also see Skogafoss on the way, my personal favorite waterfall! It's a long trip down south to Vatnajokull but very much worth it, they do coach trips if you don't feel like driving it!
There's so many beautiful places to see, trust me you will want to stop every 2 seconds to get out and take pictures.
I've rambled on a bit but if you want any other places to see, things to do or advice etc just ask!
EDIT: You also have to stop off in the town of Vik, it has about 300 people living there and is absolutely
breathtaking it's on the road to Vatnajokull
