Why doesn't a SDHC card in the Nikon D80 register a picture count?

The card is working, is formatted but doesn't show how many shots there are on the card.

Is the nikon d3100 good at videos?

I want to buy the d3100 to make youtube skits. Its in my budget and its the cheapest 1080p dslr out?

Will a sigma lens work on nikon?

Hi i'm looking everywhere for some more details on sigma lenses, I have a D5000 and I found a sigma 28-70 mm F2.8-4 DG for a great deal but i can't find anywhere that states YES IT WILL WORK ON A NIKON D5000 any suggestions?

Best Nikon lens for low light situations to use with D5100?

Hi all I was wondering about the best Nikon lens for a D5100. I heard some older lenses do not work with the auto focus on newer Nikons. Any help towards advice for the best lens to use with this camera or also an all around lens including low light motion shoots would be great. I was thinking about just getting the body instead of with the stock lens and purchasing either a new lens or second hand one.

Any help would be much appreciated.

Should I change to nikon or stay with canon?

Now i have a canon 7D
I'm planning to sold it and buy a new camera ( because it is broken )

I know that the canon 7D is an awesome camera, I even have a thought to buy the canon 7d body only

but then I started searching for info about the nikon DSLR… And I have my eye on the nikon D7000
it is really awesome

but then, I found out that the nikon lenses are really Really expensive
and I don't have that much of money ( I can get the money but it will take months to get it )

the most important problem is, I really Really want the canon 17-40mm f/4 L USM lens
i can't stress this info enough

and I don't really know that much about nikon lens, i'm like a blind guy… You know?

so what should I do? Stay with canon or change into nikon?
if your opinion is for me to change into nikon, please tell me a lens that is similar in every way with the canon 17-40mm f/4 L USM lens

Nikon 50mm 1.4G - soft/unfocused photos?

I got this lens last year but only really noticed around the end of last year that my photos are not as sharp as photos I've seen online from others who own this lens. My photos sometimes turn out badly focused with soft edges around a subject, this happens especially when the light on the subject is quite strong. This also usually happens when I'm around a metre or more from my subject, any further and I can't get the photos very sharply focused on my subject, or it won't be focused at all, the subject will just be a sharper blur than the background blur…
I often shoot with an aperture of 1.8 - 2.8 when I'm shooting models, and I try to never shoot with a shutter speed slower than 1/80 sec.
I'm not sure whether this is a problem with the lens, my camera, or due to my knowledge of both. I own a Nikon D5000 which I've had for two years.

Added (1). Wasn't sure whether to post this in Electronics > Cameras or Visual Arts > Photography…

Are almost all DSLR 'image quality' the same when put in 'automatic'?

I need a DSLR with a swivel screen & 1080p video with auto focus… I'm leaning towards nikon d5100 assuming its one of the best dslr cameras on the market. And close to those cameras that are over 2, 000 as far as image quality.

Added (1). I domt care for features please reread my Q.

What happens if a translucent mirror got dust on it?

My roomate is a seasoned Nikon D7000 user and yesterday he cleaned his sensor becaude it has lots of dust on it. I'm a relatively new Sony SLT A77 user and I wonder what should I do if there are dust on my translucent mirror in the future? Should I clean it just like cleaning sensors?

Looking for a Fisheye lens for my Nikon D3100?

I'm going to rent a fisheye lens for my Nikon d3100.
Which lens is good for the d3100?
I saw that nikon has their own fisheye lens but which one is better?
or are their other better ones. I'm going to take photos at a family event.

If a dslr camera can only film in 24p is that a limitation or is 24p good quality?

Anyone know? My brother has a Nikon D7000 and thinks I should get it over a Nikon D3200 which also has 30p for video butmaybe 24p is more of the standard? In this case let's just say for wedding videos.