Monte said:Thanks for the input guys. Yes, my thought was that the 5D mkiv with the better images at higher iso's would help "cheat" in place of gaining a stop of light with the EF200-400 over the EF100-400mkii lens. This would enable me to use higher iso's than I could get away with on the 7Dmkii, but again, less reach as well due to the crop factor. I'm also considering the 1DXmkii as well for it's superior factors in everything and still half the cost of the EF 200-400.
FEBS comment:
"Also the stop of difference between 100-400 and 200-400 on the long end means only about 10minutes more time during sunset, and most wildlife is all ready settling for the comming night at that moment. Masa Mari, has comparable light conditions with Uganda, and there the 100-400II will do a great job."
Hi Monte, i tried to send you an email, let me know if you received it
Thanks, this makes total practical sense in that all this concern and cost in reality may only gain me mere minutes at the end of the day for the stop of light difference.
As mentioned, I have the EF 400 f/2.8 mki lens and I played around with it having it on one tripod with a 7Dmkii and having my other 7Dmkii with the EF 100-400mkii on it right beside it with the cameras totally set up the same in all the settings and using auto exposure via auto iso adjustment and yea, as expected, big differences in the iso levels between the two! Makes it very hard to consider selling the 2.8 lens.
Decisions, decisions!!!! I don't want to come home and load the pictures up on the computer and live with regrets on a likely once in a lifetime trip for the five of us.
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