aceflibble said:
So, to summarise:
- First think about whether a simple lens upgrade and/or a second Canon body could fill in what you're missing. This will be cheaper than switching brands entirely.
- If that's not enough, try to be realistic about your expectations and needs; there's no such thing as one camera which has all of a bigger sensor, better IQ, lighter weight, and more speed. You will have to give up [/i]something[/i], or use two bodies/systems to cover it all.
- For a single body, the Nikon D850 comes closest to fulfilling what you ask for. It's not a bigger sensor but it's got everything else.
- The Sony α7R3 seems very good but always be wary of jumping on the latest hottest product; you don't yet know what (if any) problems they might have and it's easy to get swept up in the hype. Again, even as someone who likes the Sonys a lot, I can't say it's exciting me like the D850 has already proven. I'm very sure it would make a great second body, though, as the α7R2 already does.
- Canon is expected to put out quite a few new products over the next 12 months or so, such as the 7D3 for sports, so it might be worth you waiting to see what turns up; if you've waited 12 years, another 12 months isn't going to kill you.
- Medium format + a fast SLR or Sony α9 would achieve everything you want, but will also be by far the most expensive option. Keep it in mind, but try to not get too fixated on the idea unless you're really willing and bale to go all-in.
- Whether you switch or stay, keep those third-parties in mind; for landscapes, especially, you might find one of the ultra-sharp Sigma lenses is a better upgrade for you than a body swap. Switching systems can be really expensive and it's always disappointing if you switch expecting a big improvement and you end up with pretty much the same results (especially with Sony, where the sensors are great but the lenses are decidedly average); third-party lenses can solve both the quality and cost issues associated with swapping systems.
- No matter what, rent everything before you make any big decisions. Swapping systems always winds up costing more than you will think yet doesn't always change your results much, so a couple extra hundred to try everything out for a week or so before hand so you're absolutely sure it's right for you can be absolutely worth it.
Take it from someone who would really, really like to be able to scale down and work with just one system: hopping back-and-forth like this is a big pain for very little gain. Do not overestimate the results and do not underestimate the hassle. I'd hate to see someone waste time and money switching systems if it won't actually deliver what they expect. There's certainly a lot of things other systems can do better than your current Canon gear, but everything is always a trade and a compromise. Think carefully, think hard, and take your time.
Wow Ace,
That was a brilliant post - thank you for your time and effort! (To answer someone else, THIS is why it is worth posting to internet forums).
To answer some of your questions/concerns/thoughts.
1. Lenses
I've considered upgrading my set but prefer the f/4 lineup for the good optics balanced with low weight. I've had the 70-200/2.8 IS in my 'cart' a number of times but never bought it as it is twice the weight of my f/4 version.
I have considered the 100-400 II for better reach with sports but had not pulled the trigger on that due to the concern of potentially switching systems. One of the real benefits of the mirrorless system is shaving weight off the body and ending up with a kit no heavier than I have now.
As for third party lenses, I had the awesome Sigma 30/1.4 years ago on my Canon 50D and it was great but ended up having focus issues later and I found it a pain to deal with Sigma service. I've read about their Art series lenses and been tempted but haven't bought yet.
2. Autofocus with the 5D3
Not sure what to tell you. I've read about the AF settings at length and currently use Case 4 with Tracking at 0, Accel/Decel at +1 and AF pt auto switching at 0. Use AF-On to focus and shoot with shutter button. The Canon nails focus maybe 80-85% of the time? (guesstimate). It's pulled off my kid and grabbed another in soccer even without a tight grouping of players. Happened with basketball as well. Frustrating when it does. At max frame rate, I've felt that it missed the 'in between' shots on more than one occasion. I'm a disciplined shooter and think I have good technique but may be wrong.
3. Nikon 850
I tried switching to Nikon before I bought the 50D and found that literally everything was backwards (putting on lens, every dial/switch). It was frustrating and I gave up after 5 minutes. Don't see myself doing that now and thought the Sony was a bit more 'Canon-like' from that standpoint when I briefly handled it at Best Buy.
4. Medium Format
I get the appeal and understand the potential improvements (at least equal to the jump from 50D to 5D3) but am not interested in a second system plus second set of lenses
5. Waiting
This is probably what I'll end up doing. For good or bad, I chose Canon as my system 12 years ago and am probably 'stuck' with them now. I get that the differences may not be as huge as they seem on paper (and in fact I just read a report that the a7rIII has no appreciable DR improvement over the a7rII). In 12 months it's possible that Canon produces a successor to the 5DS that improves fps and DR to bring it on par with Nikon/Sony (though I've been waiting/watching for some real sensor improvement from Canon - haven't we all?). As good as their lenses are, it amazes me that they've shown so little innovation on that front.
I guess what I'm left wondering is if the 5D3 shutter failed tomorrow (I'm at 150,000 actuations), would I really be okay with getting a 5D4 or 5DS for the same price as the Sony a7rIII. Or would it then be worth looking at the system swap...
Thanks again for the thorough post. It really is appreciated.
E