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If I were to buy a camera to backup the A7 IV, which would it be? I'm thinking that a good used II, RII, or III would make a nice backup without breaking the bank. I don't need the huge MP of the RIV or the A1. I haven't yet totally discounted an A7 C but am not fond of rangefinder style cameras, so it's at the bottom of the short list.
I don't want to compromise on AF performance any more than I have to. I added Sony to my gear specifically to have a more accurate AF at air shows and the drag races, in other words fast action. The III is high on the list for that reason. After doing some reading, it appears that the AF system in the II series isn't as robust, but for all I know there have been firmware updates that have improved performance.
Thinking about the 7IV as my primary, what would you recommend as my backup, and why? Does AF suffer dropping back to the RII or II? Is the III as good as they say for this type of shooting? Do all of these have AA filters, or was it dropped on the III? AA wouldn't be a deal killer for a used backup, but would prefer none.
Please don't recommend getting an A1, A9II, or A7RIV as a primary and use the A7IV as a backup, that would break it's little heart.
I don't want to compromise on AF performance any more than I have to. I added Sony to my gear specifically to have a more accurate AF at air shows and the drag races, in other words fast action. The III is high on the list for that reason. After doing some reading, it appears that the AF system in the II series isn't as robust, but for all I know there have been firmware updates that have improved performance.
Thinking about the 7IV as my primary, what would you recommend as my backup, and why? Does AF suffer dropping back to the RII or II? Is the III as good as they say for this type of shooting? Do all of these have AA filters, or was it dropped on the III? AA wouldn't be a deal killer for a used backup, but would prefer none.
Please don't recommend getting an A1, A9II, or A7RIV as a primary and use the A7IV as a backup, that would break it's little heart.