My new camera fund has reached $3000, barely enough for a used 1D4 or a new 5D3. Looking around, I can also get a Sony A7R with 36MP, ISO 25600 and a 24-70 f/4 FF lens. Or do I keep going and hope to get a lower priced or refurb 1DX for another $5000. I would like a camera for low light stage events.
Based on your tagline "1D3 with 70-200 IS f/2.8L, 5D2 with 24-70 f/2.8L" I assume you do not own/use other lenses at the moment. I use to shoot with a 5Dmk2 and now with a 5dmk3. In my opinion the mk3 is about 1 - 1.5 stops better in high iso noise and dynamic range vs the mk2 in low light situations. The mk3's AF is drastically better for every scenario…but since your fastest lens is f2.8, I would actually recommend buying a few fast primes and just use the center AF point on your mk2 for focusing. The 24 f1.4, 35 f1.4, and 50 f1.2 work wonders in low light scenarios. Also, don't forget that a canon speedlite can help with your AF issues in lowlight.
David Cuerpo, Jr. | Media Producer | Expedia Inc.
Cameras: 1Dx, 5Dmk3, 60D, Sony a7mk2, a7s
Lenses: 8-15 Fisheye, 16-35 f2.8, 17-55 f2.8 IS, 24-70 f2.8 v2, 17 TSE, 24 TSE, 50 f1.2, 85 f1.2, 90 TSE, 100 f2.8 IS, 70-200 f2.8 IS v2, 200 f2 IS, 300 f2.8 IS