Tried to explain my question in the title. I am producing a final file delivery output of 3840x1640. I don't have a 4k monitor to see what my content looks like! Looking for advice from someone who has had a similar experience and how they used loads of HD 1080 in the project. Will it work as is? Guessing the answer is no. Instant 4k? Does it really work and/or is it practical if you have lots of content.
Is the only "as is" option to either pillar box or use multiple images to fill up the widescreen 4k?
Appreciate any suggestions.