Multiple Aspect Ratios &/or Image Sizes in Same Render Job?
Pretty sure the answer is "No", but just in case ...
Is there any way when using the Iray Rendering Engine within Daz Studio 4.9+ -- within a SINGLE render run/job -- to vary the Aspect Ratio, Image Size, or both?
If do-able, I'm thinking of such variations across sets of Frames within an Animation Timeline (really just a sequence of related still images, but not a true "video" sequence), coordinated with various changes in pre-set Camera views, etc.
Being able to do that would be *enormously* helpful on a recurring project that I'm currently developing for (hopefully) frequent re-use.
I haven't been able to pull this off so far (after only a few casual tries), and it sort of makes sense that a render engine would *not* support/allow it.
But I thought I'd ask anyway, just in case some of you have just the magic pixie-dust required to ...
Thanks much, even if your Reply is to confirm that I'm out of luck on this one.

Comments
I reread your original question and I'm sure I misunderstood. By setting up multiple cameras, each camera with a unique angle/aspect-ratio/dimensions you can do a series of renders that will give you the variations of the scene you need. I know nothing about animating in DAZ Studio.
(Edited after realizing I misunderstood the question.)
Thanks, L'Dair.
Yeah, we're already using the one-by-one render approach with different camera settings. We're even setting up a series of such "shots" as individual Frames in an "animation" of sorts -- but each such series is restricted to shots that use the same Aspect Ratio.
I'm guessing that - if we end up able to do it at all - an automated/animated render across multiple Aspect Ratios (and maybe other Render Settings) is going to require some custom Scripts to create multiple Render jobs in the background, but make it "feel" like one job to the User.
We've got other related "issues" to solve as well, including some viable means of sending "whatever" Render job(s) to a render "farm" (whether our own, internal setup or to third-party service - which, sadly for Daz/Iray, there seem to be few/none).
Hope this further detail helps you and/or other readers gain a better insight into our challenges ... or at least spark some cool "what if" ideas of your/their own.