So if your tax rate is 30% and you spent $1,000 on a camera, you will save $300 on taxes. So the camera is not free. But you do get it for effectively $700.
Additionally, you can't deduct the value of a purchase AND depreciate it every year. You do one or the other. And which one you do is dictated by tax law.
Double dipping is tax fraud.
In Austria we have an "investment bonus" that allows you to do exactly that (with a limit). If you are in the highest tax bracket (50%), this means you can get around 5000€ of equipment effectively for free every year.
You aren't getting the laptop for free.
on edit: unless of course this is different in the country under discussion but in the countries I'm familiar with it works that way, also note I have not discussed depreciation which would definitely apply to a laptop.