Wandering in Pentax kx Sony a390 Canon 1 100d.

The three brands have their own characteristics.

Compare the fuselage first:

Pentax K-X: It is the machine with the best performance, the best handling (the most shortcut keys) and the best workmanship (metal skeleton) among the three machines. The highest cost performance. The disadvantage is that it has been discontinued and there is no red spot in focus.

Sony α390: the only machine with folding screen among the three machines. It is most convenient to shoot at high and low positions (such as flowers, small animals, gatherings and other topics). The disadvantage is low mobility and no other advantages except folding screen.

Canon 1 100D: The machine with the most guaranteed supply among the three machines (the latest time to market, relatively more new products). The disadvantage is that it has low maneuverability and basically has no special functions to make it stand out among the three machines.

Let's talk about the lens groups of three brands:

Pentax: Advanced lenses are very cheap, and there are basically no lenses above 10,000 yuan; Have a limited edition lens that other brands don't have (good workmanship, good imaging, small and light); It can be compatible with all old lenses (including manual lenses) of PK bayonet and M42 screw. The disadvantage is that the low-end lens has no price advantage; Focus motor technology is not as good as Canon Nikon; The focusing speed is slow; Can't upgrade to Quan Huafu system for the time being.

Sony: able to upgrade to Quan Huafu system; Have the most cost-effective low-end macro lens; The only brand that can use an autofocus Zeiss lens. The disadvantage is that the low-end lens structure is general.

Canon: able to upgrade to Quan Huafu system; Have the most cost-effective low-end standard lens; Has a huge market share and user base (easy to rub each other's lenses). The disadvantage is that high-end lenses are more expensive (but the quality is also higher).

To sum up, money is not temporary, more importantly, it depends on your future route. If you just buy it for fun and take pictures, then the α390 with folding screen is actually quite good; If the lens will be upgraded in the future, it tends to be small and portable (you may wish to know about Pentax limited edition lenses such as Princess Sanbi Cui), and Pentax K-X is a good choice; If you may upgrade to Quan Huafu in the future, or many people around you are using Canon, Canon 1 100D is better if you can borrow their lenses.