The Canon SL3 was released this year and has some improvements over the T7i, but also some setbacks.
The biggest differences I've seen are the image processor, battery life, and autofocus. The SL3 has a newer DIGIC 8 image processor compared to a DIGIC 7 on the T7i. The battery life of the SL3 is superior to that of the T7i, 1070 shots versus 600 shots (under the same conditions). There is a catch though. The T7i has 45 autofocus crosspoints, while the SL3 has only 9 regular autofocus crosspoints (one cross point). Although the SL3 has a dual-pixel autofocus, this only works in live view.
This will be my first camera. I would like to be able to photograph everything from portraits to running children (hence my concern for autofocus) and now and then sport. Live View may be a great way to start taking photos, but I feel like I'll probably use the viewfinder later to disable dual-pixel autofocus.
I do not mind the small difference in the frame rate, 5 for the SL3 and 6 for the T7i. I will also mainly shoot, but if I record a video, it will only be in 1080p because of the cropping factor and the lack of dual-pixel autofocus in 4K.
Two specific things I would like to know:
- How does the autofocus of the SL3 relate to the autofocus of the T7i (for photos, with and without live image and video)?
- What difference does the newer image processor (in low light conditions)?
How do these two cameras compare? Is there a difference in the overall picture quality? Are there any other differences I missed? Which would be the right choice for me?
I will shoot in RAW.