Technology or products that should exist

Technology or products that should exist

Or they might already exist. Feel free to let me know if so. TODO: Add the date when I last thoroughly searched for a given item.

[photography] A script that aligns and crops a series of still images, similar to Adobe Photoshop's "Auto-Align Layers" feature. I once made a GIF of a Common Blackbird eating a berry, but it was a bit of a pain.
[photography] "Sharding" across dual memory cards for increased write throughput. I described the idea in more detail in a forum post. An addendum to that post's example is that I use cRAW, not lossless RAW, which increases effective buffer depth. And, I generally use electronic-first-curtain shutter mode, which limits the speed to 15 FPS.
[photography] Another idea for dual memory cards is to asynchronously replicate between them. Many cameras have a slot for a fast CFExpress card and a second slot for a slower SD card. When recording to both cards for durability, the bottleneck is the slowest card. This bottleneck could be eliminated by clearing the camera's memory buffer after writing to the fast card, then asynchronously replicating from the fast card to the slow card.
Given GPS coordinates and date, tell me when the sun will set below the horizon (even if the horizon is not sea level). This is possible if you have a Digital Surface Model of the horizon.
An improvement to document scanning on phones: New phones have main cameras with wider apertures like f/1.8. This makes it harder to scan documents because not all of the document is in focus (due to "shallow depth of field"). Many of these phones have additional camera modules that have narrower apertures, for example, on my phone the ultrawide has an f/2.2 aperture and the 3x has an f/2.4. But I find that photo scanning apps (like Adobe Scan) do not let you switch to different camera modules when you take pictures. Although it may be possible to work around by taking photos in your default camera app and importing to the scan app, this shouldn't be necessary. The apps themselves should encourage you to use the best camera module, which is probably not the default module anymore!
[photography] Rolling shutter correction in software. Effective and easy to use.
[photography] A good smartphone app for doing multiple SD card -> External drive backups at once (through a hub).
- Research: As of March 2024, the native file managers for both iOS and Saumsung S22 can do multiple background copies at once, however, they cannot merge directories (only overwrite). And the native file manager for Pixel 7 cannot see external drives at once. On Android, Total Commander can perform a merge (and see multiple drives, even on Pixel 7), however, it cannot do multiple copies at once... unless you install multiple copies of it. Installing multiple copies of Total Commander might be the best available now on Android, although I haven't tried it. I evaluated FX File Explorer and Astro File Manager + Cleaner but they were far worse overall. On iOS, I did not find any apps that can merge, although it should be possible to write one.
[photography] Subject detection during photo culling: When I cull bird photos, I often have two candidate photos side-by-side in a program like FastRawViewer. If I need to zoom (perhaps to view a 100% crop), then I need the images to be aligned. The images will already be aligned if the subject was still and I did not re-frame between shots, but they might require manual alignment in other cases. It could be automatic! Cameras can detect subjects to focus on them; culling programs could detect subjects to align images.