Summary: Pentax has a history of making cameras that are just a little bit offbeat. Just take a look at last year’s Pentax Q : rather than making a more traditional mirrorless camera like many of its competitors, the company released the smallest interchangeable lens camera on the market — but one that had a smaller sensor and a custom lens mount.
Pros: Excellent image quality, Excellent battery life, Huge lens ecosystem, Manual controls and easy access to key settings
Cons: Expensive, Relatively large and heavy, Mediocre autofocus, Bizarre physical design
Conclusion: We’ll give Pentax K-01 a passing grade — but just barely. Given the right circumstances, it grabs very nice stills. However, there are just too many negative issues. You have far better options at more palatable prices.
Pros: More sophisticated than its toy-like appearance, 16-megapixel APS-C sensor, K-mount accepts large library of lenses
Cons: Polarizing design, Photos and videos not as good as cheaper competition, Bulky, no hand grip, Poor AF system
Conclusion: Having said that, it may be worth keeping an eye on the street price of the Pentax K-01. If it were to fall, it could become a champion of good value, especially for existing Pentax lens owners, or those willing to sniff out a good lens bargain second-hand. It appears the ability to use any K-mount lens is this camera's main asset.
Conclusion: In face of competition from the rest of the industry Pentax had no choice but to join in the large-sensor end of the CSC market, and chose to do so trading on the unique feature of its widely-supported lens mount system. Unfortunately that means it loses one other advantage usually associated with mirrorless cameras; their compact size.
Pros: Features, Image quality, Available lens range
Conclusion: So what does this camera offer that others don't? Well, it comes down to design. If you want to make a statement as well as shoot good quality photos, it's worth considering - there are cheaper options out there but none that look like the K-01.
Excerpt: The Pentax K-01 first fell into Pocket-Lint’s hands back in February this year , where we were left more than a little perplexed about what this mirrorless camera was all about.
Pros: Great image quality, compatible with existing K-mount lenses
Cons: Noisy autofocus that can be slow and is poor at longer focal lengths, no viewfinder possibility, boxy design, lack of prominent grip inconsistent with K-mount concept, too expensive, confused concept