Need a new Nikon Lens to take pictures for a Baptism?

What occasion or event would you use the following lens?

Sigma 70-300mm f/4-5.6 SLD DG Macro Lens for Nikon
Nikon 35mm f/1.8G AF-S DX Lens for Nikon
Rokinon 85MAF-N 85mm F1.4 Aspherical Lens for Nikon

I can only buy one because of my budget but wanted to know when you would use the lens I listed.

Codec for Windows Movie Maker?

I would like to edit video clips from my Nikon camera but when I try to drag or import the clips from their file into Windows Movie Maker I get this message:

"The file can't be imported because the codec required to play the file is not installed on your computer. If you have already tried to download and install the codec, close and restart Windows Movie Maker, and then try to import the file again."

How can I fix this?

Why was Nikon SB 600 permanently discontinued?

Why was Nikon SB 600 permanently discontinued?

Camera choices, i'm on a budget and a beginner?

Canon T3, Canon 30D (or 40d depending if price is right), or Canon XSI -- any cheap Nikon suggestion would be nice too.

I'm a beginner photographer wanting to learn more, i have a Nikon l120 and would like a real DSLR

Uploading photos from a Digital Camera SD Card?

I want to upload only one picture from my SD card and still keep all of the other photos on it when I put the card back into the camera. If I put the SD card in my computer, can I only take off all of the photos, or can I pick the ones I want to take, and leave the others on the SD card. Also can I put the SD card back into the camera with pictures on it? Or would I have to take all the pictures off before putting it back into the camera?

If it helps, its an SD (SanDisk) card and a Nikon camera.

Thanks!

Added (1). I borrowed the camera from a friend for a project and I only want to take off my photos and leave his. But I don't know if the camera will allow me to re-insert an SD card that has photos on it.

I have some cameras to sell (uk). Advice on their value please?

I have a yashica 300 af slr with a 28-70mm lens and a 70-210mm lens. I also have a canon eos 5 body and a nikon l35 af. All are film cameras. Want to sell them and would like to know what sort of money they are worth. All are in good nick and seem to work fine, though i haven't tested any with film.

Finally have a kodak z8612 is digi cam, unused and with original packaging.

Can anybody offer any thoughts on their value and the best way to to sell them?

How to take underwater photos?

I don't think my camera is waterproof… It's a Nikon. How do I check if it's waterproof?
what do I need to buy for my camera so I can take underwater pics? Where can I buy them and for how much?

Which is best Nikon or Canon?

Getting my first dslr

Is there a canon adapter for nikon lens?

I have a canon rebel k2 EOS camera and I was able to find a sigma DL macro super 70-300mm lens so cheap I couldn't pass it up. My question is, is there an adapter to join the two? If so, where? Also, my camera can switch from auto focus to manual focus and the sigma lens doesn't seem to have that option. Would it still work being manual? Your help is much appreciated.

What binoculars should I purchase?

I've been looking recently at binoculars, and I've come up to a decision to purchase 10x50 for stargazing/land-viewing. Thing is, I'm not sure which brand I should buy.
I've found 4 types of binoculars that I could purchase in my country;
Bresser, Tasco Essentials, Nikon Action, and Bushnell - all of them 10x50.
Where - Nikon costs the most, Bresser costs a bit less, Bushnell costs significantly less, and Tasco costs a lot less. Which one should I buy? Is there a major difference between them? (FoV, weight, parts, etc.)