How to find the shutter count on a Nikon D40?

I bought one for extremely cheap (130 for a full kit) at a yard sale and don't really know how to use it
Added (1). Taylor- thanks! I'll be sure to update
>>> How to find the shutter count on a Nikon D40?

Continuous interval shooting stops after 7th exposure?

I have a Nikon D5000, and recently I've been using this with my 18-55mm and 50mm 1.4g to take star trail and timelapse photos. I've been using the interval shooting setting in my camera and shooting in RAW.
Last night with my first attempt, I used my 50mm, set to f2.8, ISO 320 with an exposure time of 30 secs. The number of intervals was set to 100, with an interval of 2 seconds between each exposure. When I start the shoot, everything goes fine until about 7 or 8 exposures and then my camera stops taking photos. Although after this shoot, I realised that long exposure noise reduction was set OFF but high ISO noise reduction set to ON.
So my second attempt I decided to use my 18-55mm lens at 18mm, f3.5, 320 ISO, 30 sec exposure time and with the same interval shooting settings except changed the number of intervals to 200 (decided I wanted to take more photos..Am I right in saying that the number of intervals is around the number of shots your camera will take?) I also checked that long exposure noise reduction was off and the same for high iso noise reduction. This time I started the shoot and waited, and it continued to shoot to the 10th exposure so I thought I would leave it and come back a bit later to see if it was still shooting. I came back about 20 minutes later and my camera had once again stopped taking photos. Also I should mention that I did have my camera set to continuous shooting mode. And battery was fine, still had 2 bars after shooting.
Anyone know what could be the problem?
>>> Continuous interval shooting stops after 7th exposure?

Why can't I change my f stop on my Nikon camera with wide angel lens?

I have a Nikon D50 and I just got a new Nikon Dx AF-S Nikkor 35mm 1:1.8G lens. I am getting a flashing " f-- " on my control panel and it won't let me change the f stop. Why not? How can I fix this problem?

ps. Ive also taken off and put back on the lens but that did nothing.
>>> Why can't I change my f stop on my Nikon camera with wide angel lens?

Ruger American Rifle with a Nikon ProStaff 4-12x40mm Riflescope, Matte w/ BDC Reticle?

So I was wondering if that is a good combination, since that will be my first rifle and I dont have alot of money. And by the way I am getting 30-06 caliber.
>>> Ruger American Rifle with a Nikon ProStaff 4-12x40mm Riflescope, Matte w/ BDC Reticle?

In DSLR camera how which settings makes front subject blurry? & back ground clear?

When i take picture from my Nikon D5100 camera front subject becomes blurry & back ground clear, how can i change this settings ?
>>> In DSLR camera how which settings makes front subject blurry? & back ground clear?

Blurry Nikon d200/300 Photos?

I take photos at a racetrack. I use my boss' camera for the job. He has provided me with a Nikon d200 or a d300.It works fairly well during the day. I have backlight issues, but I can deal with that on Photoshop. I'm mostly concerned about how blurry my photos get when the light starts to fade at the end of the day.My finish line photos are fine, but my winner's circle photos are always blurry on both of these particular cameras. I have tried every possible combination of iso and shutter speed. Does anyone have any suggestions for how to avoid this problem?
>>> Blurry Nikon d200/300 Photos?

Tips for shooting a show tonight?

Nikon d3100 and I just got the 35mm lens. The show will be a metal show in a small space, I'm assuming not well lit (but who knows it might be, the place is a deli during the day). Tips for capturing all the best moments??? Is the 35mm the best lens to bring or should I bring my 18-55 kit lens? I know if I use auto all night I won't get the results I want, and I also want to use flash as little as possible.and I don't have a tripod.
>>> Tips for shooting a show tonight?

What services does Nikon & Canon NOT offer?

Doing some research on cameras, I want to know what services does Nikon & Canon not Offer that other camera technology companies do offer.
>>> What services does Nikon & Canon NOT offer?

Which should I choose?

I'm debating over getting a Nikon D3100 or Nikon D5100.
Both have similar functions although the 5100 has a higher resolution and the 3100 shoots video, even though this doesn't matter. What is your opinion on which you would choose and why?
>>> Which should I choose?

What speedlight will work for Nikon D2h?

I have a flash that works for my d3100 but not my d2h and the d2h was released in I think 2003 so what good speedlight flash's are good for the Nikon d2h
>>> What speedlight will work for Nikon D2h?