What size lens is the Nikon Coolpix p500?

I have the camera and I'm not very educated with cameras. What size lens is this? Here's a link that could help.
http://www.nikonusa.com/en/Nikon-Products/Product-Archive/Compact-Digital-Cameras/26256/COOLPIX-P500.html
>>> What size lens is the Nikon Coolpix p500?

Nikon camera - batteries exhausted message?

I have a Nikon Coolpix, approximately 5 years old.It has worked great until this past year. Whenever I try to use it I receive a "battery exhausted" message. I've tried different types of batteries, both fully charged rechargeable batteries and brand new alkaline batteries. After taking one or two pictures I receive the battery exhausted message. When I put the batteries in other electronics they show fully charged - but not in the camera. What can I do without having to buy a new camera?
>>> Nikon camera - batteries exhausted message?

Telescope adaptor for Nikon Coolpix?

Is there a telescope adaptor for a Nikon coolpix L310 to fit my Celestron NexStar 102SLT?
thanks
>>> Telescope adaptor for Nikon Coolpix?

Nikon L810 &L310 which is the best?

Nikon L810 &L310 which is the best ?
>>> Nikon L810 &L310 which is the best?

How to tempt my parents to let me get a DSLR?

Ok so i am really getting into photography and I am starting to think about my first DSLR. last christmas I got a Nikon coolpix P500 bridge camera but i feel like i have explored a lot of what it does and am looking for a new challenge and get even more adventurous with my photos. But my parents think a photos a photo and that my camera is the same as a DSLR. they don't think i would use it enough but i know that i would.has anyone got any ideas on how to tempt her to let me.thanks for responses.
Added (1). I have the money and i would pay for it myself my parents would never by it for me.
>>> How to tempt my parents to let me get a DSLR?

Nikon COOLPIX L26 or Fujifilm FinePix AX550 which one is better?

They are both 16 megapixels with 5x zoom, which is better?

Fujifilm FinePix AX550
http://www.amazon.com/Fujifilm-FinePix-AX550-Digital-Camera/dp/tech-data/B006T7QXOA/ref=de_a_smtd

Nikon COOLPIX L26
http://www.amazon.com/Nikon-COOLPIX-Digital-Camera-NIKKOR/dp/B0073HSKAA/ref=reg_hu-rd_add_1_dp
>>> Nikon COOLPIX L26 or Fujifilm FinePix AX550 which one is better?

My Nikon Coolpix S3000 won't charge?

I found it a few days ago (I couldn't find it for about 4 months) and tried plugging it in to my laptop to charge it. The charging light just blinks slowly 3 times then quickly about 20 times. Does this mean there's a problem with the battery? It's plugged in right, and I tried unplugging it then plugging it in again, but it keeps doing the same thing. And if it is a battery problem, where can I buy a new one? Thanks.
Added (1). And I can't find the plug into wall charger so I was kinda hoping it would work if I used the thing you plug into your computer.My mom had said it might work since it does with hers.
Also, I said I had lost it for 4 months so I'm assuming the battery lost all it's charge.
>>> My Nikon Coolpix S3000 won't charge?