own an 80d that I am happy with, except in lower light. 5dmkiii a good addition?

TeamSpeed wrote in post #19001738
You can bounce a flash and lower the output to really soften the light before it actually hits the newborn. You can also go to a continuous light source as well.

I personally like window light or continuous lighting over "flash" look on newborns. Continuous is the "in between" that available light look and strobe/flash look.

5Dmkiv |5Dmkiii | 24LmkII | 85 mkII L | | 16-35L mkII | 24-70 f/2.8L mkii| 70-200 f/2.8 ISL mkII| 600EX-RT x2 | 580 EX II x2 | Einstein's
Fuji - gone
Sony 2 x A7iii w/ Sigma MC-11 adapter | GM16-35 f/2.8 | Sigma 24-70 ART | GM70-200 f/2.8 |Sigma Art 24 f/1.4 | Sigma ART 35 f/1.2 | FE85 f/1.8 | Sigma ART 105 f/1.4 | Godox V860iiS & V1S

My kit : Canon EOS R6 and EOS R, RF 24-105mm f/4 IS L, EF‑S 16-35mm F4 L, EF 100mm f/2.8L Macro IS USM, EF 70–200mm f/2.8L IS III, EF 100-400mm f/4.5-5.6L IS II USM, Sigma 35mm Art f/1.4, Macro Ring Lite MR-14EX II, 600exII-RT, 580EX II. Gitzo GT2542 and RRS BH-55, Peak Designs Carbon Fiber Tripod, Think Tank MindShift BackLight 36L and 26L, and Think Tank Retrospective V20 2.0.