
What would be the best lens for low light / action photography?
I have a nikon d5000 and have recently begun photographing horse shows for my trainer. In an outdoor setting, my 18-55 does the job just fine, but inside a poorly-lit arena, the photos blur and just don't come out as well, no matter which setting i put the camera on. I'm looking for a lens that will allow me to get crisp pictures of horses jumping in low-ish light, without compromising quality.

Is my dslr compatible with my lens?
I have a d5100 is it comparable with Tamron AF 70-300mm F/4-5.6 Di LD Macro (for Nikon Digital SLR) Lens

Is a SanDisk 16gb ultra memory card good for a Nikon d3100?
Just got a Nikon d3100 and I want to know is a SanDisk 16gb ultra memory card is good for it?

I've purchased the nikon d5000 about a year ago. 3 months later it wouldn't turn on. The battery says its completely charged but it won't turn on at all. I have no clue what happened to it. The one year warranty is about to expire and I have no receipt or proof of purchase. I tried going to sears where I got it from but since I payed in cash they couldn't give me a copy of the receipt. I can't send it to the company without proof of purchase either. I have already tried emailing them and am waiting on a response. Could you please help me out and let me know how I could get my camera fixed or what I can do?

Do I need a 10-24mm f/3.5-4.5 wide angle lens?
I was wondering, I have a nikkor 18-55mm f/3.5-5.6 and a nikon d3100 do I need a 10-24mm f/3.5-4.5 wide angle lens to do wide angle photography

What lenses can I use for my Nikon D5100?
Can I use fisheye? Ex. "AF DX Fisheye-Nikkor 10.5mm f/2.8G ED" & "AF Fisheye-Nikkor 16mm f/2.8D". How about "AF-S DX NIKKOR 35(50)mm f/1.8(1.4)G" &"AF-S NIKKOR 35(50)mm f/1.8(1.4)G?

Pentax k-5, Sony A65, Nikon D7000?
Would love to hear peoples opinions on which camera they would buy out of these 3. I'm in the market for a new DSLR/SLT, have heard good things about all of these cameras. Any input would be much appreciated!

How to change the ttl setting in a nikon d40?
How do i change the ttl setting in a nikon d40?

What settings should I put my nikon D3000 on for low light?
What settings should I put my nikon D3000 on for low light?

Will a lens for a 1996 nikon N70 work on a D3000?
I'd like to buy DSLR, but I'm a little low on money.So, since I already have a film nikon, could I just use the lens from that one? Also, refurbished nikons - yes or no? Are the number of shutter acuations a problem when buying a refurbished DSLR? Thanks!
Added (1). I spelled shutter actuations wrong, sorry! (I forgot the first t… Whoops)
Added (2). Also, I'm looking at the refurbished nikon on adorama (http://www.adorama.com/INKD3000R.html), which doesn't say how many actuations is on it. What should I do?