1, brand. At present, there are six major brands of home SLR: Canon, Nikon, Pentax, Sony, Sigma and Olympus (excluding micro-cameras and paraxial cameras). Among them, Oba sensor is small (4/3 system SLR, relatively small, not M4/3), Sigma X3 sensor is not suitable for novices (X3 sensor has amazing low sensitivity and poor high sensitivity, which needs to be adjusted later), and Sony fixed reflector (electronic viewfinder, that is, single battery). Fixed reflector reduces the imaging light, but the machine shock is small and the continuous shooting is fast), so generally speaking, Jia, Ni and Bin have more choices. There is no best SLR brand, each has its own length, mainly depending on its own needs.

2. There are medium-sized SLR (very expensive, not recommended for home use, except local tyrants), full-size SLR (good image quality, relatively expensive) and half-size SLR (that is, C-size SLR), and H-size SLR (less). Half-width SLR is divided into mid-range and entry-level SLR. The difference between mid-range and entry-level is mainly in handling and materials. In the case of using the same lens, the picture quality is the same.

3. There are three imaging cores of SLR (also the core of digital imaging), one is sensor, the other is lens, and the third is image engine (imaging synthesis chip). If all three cores are good, the imaging must be excellent, without exception.

4. The advantages and disadvantages of Canon. Canon's strongest are chips and lenses. First, Canon chip has high sensitivity, strong noise suppression ability and less noise in photos, but it has serious smear and more details are lost; Second, color reproduction is better, which is the best for skin color reproduction. Third, the focus is faster, especially the 70D dual-core AF focus, which is the fastest in the half-frame machine. Journalists and paparazzi use 7D because it is fast enough. Canon's lens group is an advantage, and the red circle lens is very powerful; Canon's biggest foot is that sensor technology is relatively backward. When imaging with large light ratio, the bright part is easy to die white, and the details of the dark part are easy to lose.

5. Advantages and disadvantages of Nikon. Nikon's strengths are excellent sensors and rich lenses. Nikon uses CMOS developed by Sony (Sony has the strongest ability to develop sensors, no one). After Nikon's adjustment, the dynamic range, color depth and other imaging indicators are very good, much better than Canon's, which is evidenced by the evaluation of DXO Laboratory, an internationally renowned French camera evaluation agency. Nikon's disadvantage is that the chip's ability to restore skin color is insufficient, and the color is easy to yellow. Some photos need to be adjusted later, but the imaging clarity is high and the scenery is powerful. Nikon's lens group is also an advantage, and the gold ring lens is powerful.

6. Pentax's strengths and advantages. Pentax also uses Sony sensors, and the imaging quality is first-class. Outstanding advantages are compact body and excellent workmanship, and Pentax body has anti-shake function (body anti-shake and lens anti-shake have their own advantages). Another advantage of Pentax is that the imaging color of the chip is very beautiful, and it is good to directly output it. In the photography circle, Pentax Green Oba Blue Canon Powder is very famous. Pentax's disadvantage is that the lens group has no advantage. Compared with Canon and Nikon, the lens group is much smaller. Even the star head of Pentax is not as good as Canon Red Circle and Nikon Gold Circle.

7. To sum up, if there is no plan to burn the lens, and it is a general household, it is recommended to enter Pentax; If you have a desire to develop on the road of photography, then: taking portraits and photos, it is recommended to enter Canon; Shooting scenery, mainly scenery, it is recommended to enter Nikon.