Summary: This is only a preview and I will post a revised review in a few days. This is my first SLR camera so I have no frame of referrence other than my visits to camera shops to try a few out. I was torn between the Canon T1I and the PENTAX K-X. I took a look at the T1I and felt it was a bit on the cheap side. It was also a bit more expensive with less features and lens are very expensive.
Summary: I received this camera last Friday. I had 2 full days to take great shots with this camera. I purchased two bundle kit, which comes with 18-55mm lens as well as 50-200mm lens. I have another manual focus lens, which is A50.7. One of the most asked questions about this camera is AF speed. Yes, AF is pretty quick. To test AF speed, I sometimes turn focus ring to opposite direction and checked the time it takes to set the focus. It was usually less than 0.4s.
Summary: I just received and unpacked the K-x. The K-x feels solid and quality built, this is great for the class and has features that many more expensive cameras lack. I shot a few pictures and they are looking awesome... I will need more time to do a complete review, but overall the K-x looks great. I think this Camera has tremendous Value and will push more consumers to look at Pentax for dSLR. Many ppl forget or don't know the great Film Pentax's of the past. A few notes: 1.
Excerpt: I was lucky enough to find my Pentax KX, complete with a Pentax 50mm f/1.2 lens, in a pawn shop in Reno, Nevada, back in 1979. It was used, but just barely, and over the years it has sealed the deal for me on Pentax. I can't imagine myself without a Pentax camera. Since then I've added three more Pentax cameras to my slowly growing collection, but I still use this one because it is so easy to work with.
Excerpt: Got the camera together with K105mm 2.8 lens, they were bought by my mum on a second hand street market for under 10 euro... it is my first Pentax and I consider myself to be very lucky, since it indeed (see all the other reviews) is an excellent camera. I used some Nikkormats in the past (20 years ago) and the KX reminds me of them; very solid build quality.
Pros: solid, black & beautiful, mechanical shutter
Excerpt: Compared K-x with modern & much more expensive ones and found it to have very low shadow noise levels at base ISO and also great high ISO performance. My NEX-F3 has quite high levels of noise in shadows at low ISOs so I started to look for K-x. I found one as second hand for a great price of €179. Very good value.
Pros: Hardly any low ISO shadow noise, size, AF, good high ISO IQ, lens compatibility
Excerpt: My (bright green!) K-x is my first DSLR. I chose it mainly from the positive reviews I read and because I had a Promaster zoom lens from my old Pentax P3 SLR that was sitting in a closet. The user interface and displays are very easy to understand and use. I like that one of the RAW formats is the industry standard, DNG format, so most photo editing software can open it without a special plugin or OS update.
Pros: Lots of mid-range features for a low-end price
Cons: Poor video support, no AF-point display in viewfinder