What is the resolution of the JPG image that is embedded in RAW files shot at the highest resolution on a Canon 7D MkII body?
With Photos and iCloud Photo Library, it looks like I can finally leave the computer at home when traveling and just use an iPad as my on-the-spot field editor and daily family sharing device.
The one sticking point is that the iPad can't (yet, hopefully) render RAW images directly. So, when shooting RAW, it uses the embedded JPG for all local operations (while the RAW is still persisted into the cloud untouched and the computer(s) at home will render that -- all edits are non-destructive, but there is some risk that an edit won't look quite right when applied from JPG -> RAW).
If the JPG preview embedded in the RAW image is of sufficient resolution, I can live with this limitation. In the past, the JPG previews have been really poor quality (the Canon T2i, for example, looked awful).
Ultimately, I'll just eyeball it and make a decision if I can live with it. But, I'm really curious about a proper answer here.