It’s actually only the physical size of the aperture opening and distance from the subject that actually determines the depth of field. F number and focal length are only relevant so far as they are used to calculate physical aperture size which...
Maybe I misunderstand you, but if you buy a Mini 5 in EU you can indeed ask DJI to unlock the altitude restriction. It will then be classified as a C1 drone. Instructions and C1-label is included in the box.
EASA (EU plus some other countries)...
Obviously Copenhagen airport has advance drone detection systems, but why have they not released information about what these systems and radars have seen?
Oslo Airport was also closed a few days ago, because several people saw what they beleived...
Actually, just looking more closely at the lights on the "drone" that was seen flying over the airport, The lights on it look a lot more like the navigation lights on a GA (general aviation) training aircraft than the lights on a drone. Solid...
Nobody has so far confirmed it was drones.
The comapny Copenhagen Airtaxi have confirmed that they were doing trianing flights in that area at the time of the observations. The used a small aircraft Socata TB-20 Trinidad, registration number...