Ask people who know photographic equipment, which exposure parameter is better at present, 6D or 5D2?

Buying new ones instead of old ones is definitely better than 5d2. Judging from the published data, is 5d2 a product with similar price many years ago or 6d? Static selection of 24- 105 is more practical, because the focal length of Quan Huafu covers the wide-angle standard, and the small telephoto 17-40 only has a wide angle.