Bought it. Would love to test it, some ruptured ligaments and tendons in my left foot keep me from doing it. Damn, should not have skipped the last step of the stairs last saturday... should have listened to a wise man who said 'go slowly, it's urgent!'
So, before some of you bash Sony for taking money or the app in gerneral without trying it, consider some things first:
- the app itself is cheaper than any 100mm square filter holder, adapter ring or filter
- many of you guys have two or more cameras... you just have to spend the money once, actual GND-Filters on the other side, can only be present in front of one lens at a time
- even the best filters mess bigger than zero with your optical path, this app doesn't
- you can adjust how hard the edge should be in camera
- you can adjust the number of f-stops in camera
- you can WB both areas seperately in camera
- you're going home with one RAW file if I understood this correctly, not dozens of HDR-to-be-files you don't HDR at all, at the end of the day
- as long as your cameras are supported, it's kind of universal. Even filter-repellant lenses like the 2.8/14-24mm Nikkor, the 4/11-24mm Canon L, the 2.8/15-30mm Tamron, the 2.8/14mm Rokinon/Samyang... you name them, not a problem at all.
- filter holder, adapter rings, filters plus cases and bags - they're all packing some weight to carry around. This app doesn't
- slot-in-filters get as large as 150x200mm
- combining a GND filterwith a polarizer isn't always fun and games. Now you just put a CPL in front of your lens, or maybe even between the lens and the camera (waiting for my DEO OWL adapter)
Maybe uncompressed RAW might later be added for the A7II*, you don't know how far the development of this app was at the time, that Sony decided to fw-upgrade their cameras.