Jon.Bryant
Well-known member
Although the R5 overheats easily when taking 8k video, and 8k gobbles up memory, has anyone experience of using 8k as a means to improve the apparent magnification of a lens by cropping from 8K to 4K or 1K?
I am in particular thinking this could work well for birds in flight, where it would be easier to track and keep a bird centred if you were using say a 200mm lens and then cropping the video.
Am I right in thinking that cropping from 8-4K, would given the impression that your lens was twice the magnification, and that a crop to 1K would be like increasing the focal length 4x? Obviously there would be a loss of resolution and it would only really work if the bird remains in the crop area - unless there is a method to smoothly transition the crop zone in post processing.
I am in particular thinking this could work well for birds in flight, where it would be easier to track and keep a bird centred if you were using say a 200mm lens and then cropping the video.
Am I right in thinking that cropping from 8-4K, would given the impression that your lens was twice the magnification, and that a crop to 1K would be like increasing the focal length 4x? Obviously there would be a loss of resolution and it would only really work if the bird remains in the crop area - unless there is a method to smoothly transition the crop zone in post processing.
Although I will confess to having used stabilisation in post, given a stable enough background, and the cropping out the highly shifting borders. You could probably even then use a compositing plane on the result to make as if you were panning. It's not going to win you Oscars though, I think the internal lens stabilisation IS mech gives some sort of variable shading which shows in the result.
