Unlike the the bigger and more expensive DSLR's, PNS cameras are practical, very affordable and highly popular.
Everybody would have different criteria when comparing digital cameras for buying a point-and-shoot digicam. Some would have price above all else when considering a purchase.
I've bought and used a couple of digital cameras until I had to replace them. I'm in no way a professional photographer but I do appreciate good photos in blogs. And I'm a blogger.
These are my OTHER considerations when buying a point-and-shoot digital camera for blogging purposes:
My experience taught me that with current technology, penlight AA rechargeable batteries are better. You can buy alkaline batteries anywhere should you run out of battery juice.
Current models with Lithium-Ion batteries are lighter, smaller and have more features, but I'd rather have a ready source of battery for when taking pictures.
My first digicam was a Casio Exilim and I had to buy a another (Casio proprietary) Lithium-Ion battery as backup. When the battery charger that came with the kit broke, I had to buy another battery charger.
I quickly realized that these slim, handy and "high tech" batteries can become expensive in the long run.
- Older and Cheaper Models
If price is a major consideration, then don't buy the newest, top-of-the-line digicam models. Sure, the new models have tons of features and make you really look cool with your friends.
But, personally, I don't care that much. The top-of-the-line models have features I don't really need. I'm happy with the basic features of the camera units I'm looking for.
Wait roughly for a year after "new" models release, and most of them will become cheaper.
- Image Quality
I use images for this blog to supplement the blog entries' text. It is NOT a photography blog and so I don't need ultra crisp photos with special effects. I do value good photos though that are good enough to post.
So look for models that give the quality images you want. I've had an old camera where the photos sucked. I had to use a photo editor 80% of the time just to brighten and sharpen the photos.
- After-Sales Service
Nowadays, point-and-shoot digital cameras don't seem to be as durable. Be clear on warranties. Can you course the damaged unit to the shop you bought it from?
Many would accept it within a year or the warranty period. After that, they charge you in addition to the repair fee.
Beyond the warranty period, be sure to know where to bring the digital camera for repairs. I'd rather have the service center for the digital camera within 30 minutes travel time from where I live.