I had a similar experience with my 400/5.6, 1.4x and 5DsR. In tests I found that the teleconverter (mk1) didn't produce better files than simply cropping 1.4x. I regret selling the 1.4x as my R gets a lot more use than the 5DsR.
Thanks for the link !Thank you all above for your advice.
You shift me towards an early adoptation of the R5/6.
All three of you seem to point to - which was my underlying concern - a solution based solely on R-system being preferable compared to mixing EF and R-system.
Especially when the timing is as it is. (I guess I shold have invested in the 400mm DO much earlier - but that is another story).
Speculation for me is, that future big whites will be RF-based and are likely to be even better on R-cameras than current EF lenses.
So whether to go with the already announced 100-500 mm or with some yet to come bigger whites can be open options for now.
Thanks again.
PS: Some of my Wild-life work can be seen at: https://symphoto.smugmug.com/Wild-Life
gorgeous!View attachment 193382Here is a shot with the R5 and the 100-500 RF ISO 1600 f 9.0 2000 sec at 500 focal length
Dear all
After about one month of usage my experience is a confirmation of first impressions just above.
And I can add, that the RF 1.4 TC works very well with the combo. The rather slow optics is quite well covered for by great IS and good high ISO performance.
To prove my point - and referring to my wish above for kingfishers - I can add, that I got some already. And once I came really close - se two examples here.
Both at 700mm @f/10 (max speed with TC). No 1 @ ISO 1000, No 2 @ ISO 1600.
Couldn't be more happy.
View attachment 195636View attachment 195637
I'd wait for the Mk. II. That's at least what I'll be doing. And then, I'll decide: R5 Mk.II or R3...Very nice shots!
My only thought relative to my typical shooting is that I'm ecstatic if I can be at ISO1250, very happy at 1600 but usually find myself above and my typical scenario is 400X2 @F8 with ISOs ranging up to 6400. The 1DX2 handles the high ISOs quite well but of course it's only 20 MP so I'm wondering just how the R5 will compare since I plan to buy it by spring.
Jack