Why won't my Nikon D3000 appear under devices on iPhoto?

When I plug my camera in iPhoto generally opens automatically and asks to import my pictures, however this time it isn't. I have restarted my computer, plugged my camera in fully, turned camera on and off, and fully charged my camera's battery. I've successfully imported pictures tons of times before and am very confused about why this is happening. I just got back from a trip and really want to upload my pictures. Please help! :)

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Nikon D3100? Nikon D90? PENTAX K-x?

Which would be the best to get for my first DSLR camera? I have a FUJIFILMF72exr now but I would like something a tad more advanced with plenty of options, great features, and a wide range of exchangeable lenses. I would like a good amount of fps and pixels. I would like to be able to take good landscape photos and macro shots. If I should be looking at different brands I'm open to anything! Thank you!

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Best Nikon lens for high school sports (basketball, football, etc)?

I have a 18-55mm 18-55mm f/3.5-5.6 Nikon Lens and the 55-135mm. Which would work best for high school sports on my Nikon D80? Mainly basketball. Also, if there are any better lenses, please, do tell!
Thank you!

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What is the difference between a 55-200 mm VR and a 55-300 mm VR DSLR lens?

I'm looking at cameras for my boyfriend and can't decide which to go with - mainly because I don't know much about them. Right now I'm choosing between the Nikon 3100 18-55 mm VR + 55-300 mm VR, and the Nikon D5000 18-55 mm VR + 55-200 mm VR. He isn't by any means a professional photographer, but we're looking for something that will give us a crisp picture and that has a good zoom.

I know that usually the bulk of the cost is concerning which lens you buy. In this case, the cost is only a difference of $150. How much better is the 55-300 than the 55-200? I'm sure its worth the $150, but I'm just wondering what exactly the difference is between these two. I plan to visit a camera shop later this week, but in the mean time I'm just looking for some opinions concerning this. Thanks!

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Imovie 11 won't export nikon d3100 into 1080p?

I got a new macbook pro in january after having a regular macbook before that. My nikon d3100 would always export in 1080p. For some reason on my new computer, it'll only export in 720p.suggestions?

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What setting can I put my camera on to take good pictures at night?

I just got a Nikon D3200 and still trying to figure it out! Please help me learn! Thank you.

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Is it worth the money to get a Nikon D5300 over a Nikon D3300?

I am a 14 year old boy who is just getting into photography. My dad is a Nikon shooter and he has some very nice lenses that I can use. I'm wondering if it's worth the extra couple hundred dollars to get the D5300? I like the look of the D3300 better and the layout as well. Please help! Thanks!

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Talent show Photography in dark auditorium?!

Okay, so I need help with settings for a Nikon D3100 with an 18-55mm or 55-200mm lens. What would be easiest without a tripod or monopod?

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Lexar CF Card compatibility with Canon?

Okay so I have a Canon EOS 40D, and I need a CF card. I found the "Lexar Professional 800x 32GB CompactFlash Card" and I need to know if it is compatible with my camera. I don't want to have to spend $50.00 if it's not going to work. Please let me know!
Added (1). Also, I'm wondering if the SanDisk Ultra compact flash card would work better (or even at all)?

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Good beginner Nikon cameras?

So mi sister wants a Nikon camera that can take beautiful HD photos, but my main issue is, I don't know anything about Nikon cameras, so that being said, all I need is a good Nikon camera that can take HD photos and that's not that expensive> THANX

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