The recent release of the Nikon D800 has thrown into sharp relief the fact that the megapixel war is most definitely not over. In the last few years, there has been a brief lull in the battle, a sort of phony war where the major manufacturers had been quietly suggesting that they had reached the optimum pixel count. Nikon’s D800 is almost certainly the open shot of a new battle for megapixel supremacy. So with this in mind, today, we are going to take a look at how many megapixels you really need.
Where Did The Battle Begin?
Time was that 6mp was deemed more than enough for anybody. Those days seem to be in the dim and distant pass, but yet in certain circumstances, it may be true. Perhaps the true answer to how many megapixels do you need is in fact, as many as I need. By this, I mean that different people will have different resolution requirements.
Horses for Courses
Lets take a look at the occasional amateur. This is someone, who enjoys photography but does not spend huge amounts of time or money on it. They most likely only ever look at their images on a computer monitor or TV screen. At best they may print their images up to 8×10 inches once in a while. The 6mp limit is probably quite suitable for them, quite capable of giving a nice quality print or screen image.
Next up would be the Enthusiast. This is someone who takes their photography seriously, they may have aspirations to become professional or they may be happy just shooting for the personal satisfaction. Either way, the chances are that they will want to print some of their images big and will want them to be sharp as well. The enthusiast will probably want a camera in the 12-24mp range. The upper range here may allow the photographer to produce exhibition quality prints up to 40×60 inches but of course the downside is that to obtain this quality there will need to be investment in good quality lenses as well. The average kit lens will start to show its deficiencies at this size.
The Professional. So at the professional level, why would they need a camera of 36mp. Well there are a number of factors that come into play. Sometimes a pro may not be able to get into exactly the shooting location they want, having 36mp allows them to crop into the image significantly more than lower resolution cameras. Landscape and portrait photographers are always looking for the ultimate in resolution and until now that has only been obtainable with medium format backs.
Of course there are many factors in play when deciding how many megapixels are good enough for you and only you can decide what that number is. Of course all pixels are not born equal and you need to consider whether the increase in resolution will lead to a loss of high ISO quality, or perhaps whether your computer and hard drive are up to storing thousands of 36mp images and indeed whether you will ever truly need all those pixels.
I am going to end with a little reality check. Make a note in your diary to come back and read this article in five years time. I can tell you now that whilst most of the arguments will still be relevant, we will be laughing, perhaps with scorn, at the fact that we ever managed to get by with just 36 megapixels. That, in a nutshell is the reality of digital photography.
Jason Row is a British born travel photographer now living in Ukraine. You can follow him on Facebook or visit his site, The Odessa Files. He also maintains a blog chronicling his exploits as an Expat in the former Soviet Union