Not that we needed any further confirmation about the camera setups on the Galaxy S21, S21+ or S21 Ultra, but it's always nice to get an official render leal that confirms every rumor so far. These come courtesy of the one and only Evan Blass via Voice, and include the main, periscope, telephoto, and ultrawide-angle camera specifications of Samsung's Galaxy S21 family.
Needless to say, we are most interested in the S21 Ultra kit, as the S21 and S21+ sets stay largely unchanged from what's on the S20 or S20+, while the S21 Ultra pulls a Huawei P40 Pro+ with not one but two zoom cameras, one periscope and one telephoto.
Samsung Galaxy S21 vs S21+ vs S21 Ultra camera specs
12MP vs 12 MP vs 108MP main sensors
12MP vs 12MP vs 12MP ultrawide camera lens sensors
64MP vs 64MP vs 10MP 10x periscope/3x telephoto zoom cameras
10MP vs 10MP vs 40MP front camera sensors
Galaxy S21, S21+, and S21 Ultra cameras
Don't be fooled, the high 64MP megapixel count of the Galaxy S21 or S21+ zoom camera is nothing to admire, as the S21 Ultra has not one but two zoom cameras, one of which has 10x periscope zoom, and the other 3x telephoto range, just like Huawei's P40 Pro+, so it covers all bases. The Galaxy S21+, just like the S20+ before it, doesn't have a periscope or telephoto zoom camera.
It simply crops from the high-res 64MP secondary sensor, and Samsung itself admits that what it calls a "telephoto camera" actually sports a lens that is very much wide-angle, almost as wide as the lens on the main camera.
The "telephoto" lens only provides a 1.06 zoom compared to the regular camera, so all the zooming is actually almost entirely based on software - cropping and merging with the information from the main and/or ultrawide sensors.