Lens: Considering that there are some requirements for the format of the lens when the couple toasts and take a small group photo after the wedding banquet, 17-40 4L is a good choice, and the format of the lens can handle the group photo calmly. This lens is about 4500 parallel imports, with good cost performance. As for whether there will be a lack of focal length, according to my several experiences, it basically does not exist, because the wedding scene is generally festive and lively, photographers can get close without being disgusted, and customers are not so artistic about the photos. Of course, it is also good to have a 24-70 2.8L, but the budget does not allow it. If you really feel the need, you can buy Yima's old model 24-70, the price of parallel imports is around 2600 (I don't know if it has been discontinued) or Longteng's 28-75, and the price is around 3000.

Flash: an indispensable tool for the wedding scene! One step, Canon 580! The price is around 3000. Fast and steady!

Camera handle: it can save the trouble of changing batteries and make the camera feel better. In addition, the machine will become more professional and give customers confidence. Battery 1200 yuan or so.

The remaining flash and camera spare batteries and camera memory cards also need to be budgeted. The camera bag is average, and the tripod is basically not used.

As for the choice of other brands that can be considered, only Nikon can, the price should be similar to the above, and the performance can be said to be the same. You can install it according to your personal feeling, because I don't know much about Nikon machines, so I won't list them.

I hope I can help you.