Which size dslr filter do I need?

I've got the Nikon D5100 with the 18-55 kit lense. For Christmas I'm hoping to get some filters, what size do I need to get to fit?
Thanks
>>> Which size dslr filter do I need?

Maximum noise reduction with Nikon D3000?

I've slowly been learning how to use my D3000 properly after 2 years of point-and-shoot in auto mode, and I particularly enjoy night time or sunset/evening photography. I'm just wondering if anyone has any tips for achieving the maximum possible noise reduction with this camera? My lenses say 18-55mm 1:3.5-5.6 and 55-300mm 1:4.5-5.6 (if that helps?)

Tonight I was practising with some night time shots and I had changed my ISO to 100 (and used my tripod), is this pretty much all I can do? The noise wasn't terrible but since I was capturing moonlight through clouds etc, it was really noticeable.

Any tips would be appreciated!
Added (1). I was using the 18-55mm lens tonight
>>> Maximum noise reduction with Nikon D3000?

How to get a hong kong scammer to just stop!

So were in gong kong, I'm 13, and I've saved up for a nikon d5100.As soon as we got there and I was ready to pay he takes two pics, one with the d5100 and one with the canon t3 rebel. The rebel was noticeably better. But I did my research and I remember seeing that the nikon is better.Sl he says buy the canon, but it's 2000 HKD more expensive but it's worth it. Of course my dad starts saying that I'm blind if I think that the nikon is better. When I continuously refuse the canon, even after my dad is pissed at me, he starts "recommending" the d3100 and d5200 both which are worse and he's telling me to get them for way too much. But my dad gets all mad and says hes the expert not you, but I knew he was scamming me but couldn't say so. Eventually I get him to just shush, and he orders the nikon through a call. All of a sudden 10 mins later, without any other phone call, be says we don't have more sorry. But buy this t3i for just 2000 HKD more or ake this barely used one for a cheaper price. We all refuse and he insist and we say will there be another tomorrow he says yes. The thing is I want to "scam the scammer" I know he's going to, tomorrow, remove the body from the boxing, OR it's going to be in chinese, meaning it's been used. I want to tell him that innocently, while paying the cheap price that he thought meant scamming me. Anyways, tomorrow, how do I get him to just shut up and give me what I want, and show my dad that he's scamming us!!! Helppppp
Added (1). He was scamming me because he was selling me a product that was fake (I could see the rebel t3 sticker glued onto the label) and for 3 times the real price. Can't go to another shop, parents disagree. Remember I'm "only 13" so my parents won't listen no matter what. They even tried to make me buy dr. Dre beats for 8 USD because they thought it was a good price
>>> How to get a hong kong scammer to just stop!

Does nikon d70s have an internal memory for taking photos?

Does nikon d70s have an internal memory for taking photos?
>>> Does nikon d70s have an internal memory for taking photos?

Is canon better or nikon?

Which one has better quality ?
>>> Is canon better or nikon?

Cullmann Primax 190 tripod is good?

I want to buy Cullmann Primax 190 tripod, but i don't know if it is good or not? i have Nikon D3100 with 18-55mm and 55-300 mm lenses, is this tripod good for my camera? Any idea?
Added (1). If it is not good, what do u recommend?
>>> Cullmann Primax 190 tripod is good?

Nikon/Canon camera help! }?

I want to buy a Nikon L810 and a Canon Sx150 but I also wanted to know if you can have focus in the pictures? Like, do they have sharp, focus, and some features? Is Nikon a good camera?
What about Canon? Does it also have features, sharp, and focus? Is that also a good camera?
Thanks. :)
>>> Nikon/Canon camera help! }?

Will taking photos of the sun affect my DSLR? (have pictures)?

I got my Nikon D3100 yesterday and tried taking 3 pictures with the sun in the background.It was around 5 o'clock when I took them. Will it affect my camera? Thanks :)
*the first photo is the one I took, and the next 2 are the ones I took after to check if the quality was affected

http://www.flickr.com/photos/77597236@N03/7155185030/in/photostream
http://www.flickr.com/photos/77597236@N03/7155192970/in/photostream
http://www.flickr.com/photos/77597236@N03/7155200624/in/photostream
>>> Will taking photos of the sun affect my DSLR? (have pictures)?

How to change shutter speed on Nikon J1?

So I want to do some light painting on my new Nikon J1, it's my first camera so I'm not very good with changing the settings, etc. I've tried to google it but I can't find anything, only reviews of the camera. Can someone please tell me how to change the shutter speed to do light painting?
>>> How to change shutter speed on Nikon J1?

How to get a good bokeh effect on Nikon d3100?

I'm hoping to figure out on how to do it on my d3100 with a 18-55mm or a 70-300 mm lens, Im wanting to know how to do it for like out door portraits mostly. If not then what lens can I add on to either one for a bokeh effect?
>>> How to get a good bokeh effect on Nikon d3100?