Can you turn a dslr on without a lens attached?

Or will it damage something?
I will be getting the actual Nikon D5000 body before the lens arrives and I'd like to be able to get acquainted with how everything is set up.

Added (1). Sorry my english is bad

Tips for a beginner photographer? - 1

I want to become a photographer! So i just bought a Nikon d3100, what are some tips of yours that you might want to share?! PLUS, if it helps. I LOVE nature, so i will be taking alot off nature shots! AND i like to capture family and friend moments! So, i will be taking pictures of family!

Would Nikkor 55-200 mm VR lens work with Nikon D3100?

Lens is AF-S DX VR Zoom-NIKKOR 55-200mm f/4-5.6G IF-ED
I have heard that all DX lens are compatible with DX series DSLRs. But D3100 is not shown on 'related product' section on its site.
http://www.nikon.co.in/...D=gp11zkyu

Why are my pics fuzzy when i turn flash off on Nikon D40?

I'm using a Nikon D40, when the autoflash is on, the pics are crystal clear, when i turn the flash off for a more natural shot the picture is always fuzzy regardless of how still i hold the camera. Any ideas, I'm really a novice here so I literally have no idea about DSLR's and what they can do, this camera was kind of inherited.

How much shutter count is okay when buying a used nikon d90?

Don't know a lot lol.

Nikon D-5000, 12.3 megapixel DSLR- what lenses should I use? (beginner)?

Hi, I recently bought a NIKON D5000 DSLR body only, without the lens. What lens should I use, for the purpose of simple, clear and in-depth photography? Nothing too fancy…
(And with a lsimple budget- I'd like to pay up to $100 dollars)

DSLR setting for upcoming auto show?

I just bought my first DSLR camera. It's a Nikon D3000 and its perfect for me bc I'm new to the dslr world still. The camera comes with a kit lens 18mm-55mm. I know that the lens is very basic but I can't change it before the upcoming auto show.
What settings on my camera are preferable for an auto show? Keep in mind that I prefer shooting in Aperture priority mode. I tried the camera in low light and indoor conditions and most pictures are quite blurry.
Please help me set my camera so I can get best results of that lens.
Thanks in advance!

Added (1). Despite some people NOT giving me any advice and saying I have to read the manual I would still appreciate those of you that can actually give me a legit technical advice and not respond with a "wise" comment. I'm sure you were new to cameras yourself once

My flash only works when I'm shooting in auto mode. Why is this?

I have a Nikon D5100 & Bower SFD926N Digital Shoe Mount Flash. I'm trying to teach myself photography & get out the auto mode of shooting. However the minute I switch my camera to Manual mode or Aperture, shutter. My flash stops working. Does this mean I need a Nikon flash instead? And if so I'm looking at either the sb 600 or 700, but the 600 seems more in my price range.

I do all types of pictures with my camera from indoor with a backdrop, outdoor portraits & events with low light.

Appreciate any advice, thanks!

How much would it cost to have a nikon d90 serviced?

I'm shooting a wedding in a few months and wanted to have my camera cleaned before hand and i was just wondering about how much it would cost and the best place to have it done

Battery or Camera causing the problem?

Wondering if anyone could help me.
I have a Nikon d40 dslr, I haven't used it in the last few days due to being busy with other things. I remember that I had just under half a battery left, I tried turning it on today and there's no light or anything.
I'm needing to get a new battery charger as mine is needing replacing as it isn't charging, I plugged my camera into my laptop tried turning it on again.nothing… I don't know why I even assumed plugging it into my laptop was going to do anything.
But usually when I barely have any battery left, it won't let me take pictures but let me view. So I'm not too sure if perhaps my camera is needing looking at or if it could possibly be my batteries?