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FPV camera sizes (nano 14, micro 19, mini 22, full 28 mm) and DJI O3 / O4 air unit dimensions

Name: FPV camera sizes (nano 14, micro 19, mini 22, full 28 mm) and DJI O3 / O4 air unit dimensions dimension sheet
Creator: Xem Studio
License: https://creativecommons.org/licenses/by/4.0/

What size is a micro FPV camera? · Modern device · basis: DJI specs; camera makers' pages via dealers; mount holes for O4 Pro from a maker review

Also called: micro fpv camera size, 19mm fpv camera, dji o4 dimensions, dji o3 air unit dimensions, fpv camera mount 3d print

Exact dimensions. True size, with no printing tolerance added.

sizes: 8 in table

Notes

Camera body classes by front width: nano 14 × 14 (Caddx Ant), micro 19 × 19 (Caddx Ratel 2, 19 × 19 × 20), mini 22 × 22, full 28 × 28 (mini cameras often ship with a 28 mm adapter).
Side M2 screw positions are not published for these cameras, so the cages have slots instead of holes.
DJI O4 Air Unit Pro: camera 25.55 × 20 × 23.3, VTX 33.5 × 33.5 × 13 (32 g with camera); VTX M2 threads on 20 × 20 and 25.5 × 25.5, camera 2 × M2 16 apart (maker review). DJI O4 (lite): camera 13.44 × 12.36 × 16.5, VTX 30 × 30 × 6.
DJI O3 Air Unit: VTX 32.5 × 30.5 × 14.5, camera 21.2 × 20 × 19.5, 25.5 × 25.5 mount. Planes and cars: use the 19 or 22 cage on a tilt plate; vibration-isolate with TPU.

FPV camera sizes (nano 14, micro 19, mini 22, full 28 mm) and DJI O3… size chart

unit	camera (mm)	vtx (mm)	mount	weight (g)
nano class (Caddx Ant)	14 × 14	None	None	2
micro class (Caddx Ratel 2)	19 × 19 × 20	None	None	5.9
mini class (Foxeer Predator 5 Mini)	22 × 22	None	28 mm adapter	8.7
DJI O4 Air Unit Pro	25.55 × 20 × 23.3	33.5 × 33.5 × 13	20 × 20 and 25.5 × 25.5 M2	32
DJI O4 Air Unit	13.44 × 12.36 × 16.5	30 × 30 × 6	None	8.2
DJI O3 Air Unit	21.2 × 20 × 19.5	32.5 × 30.5 × 14.5	25.5 × 25.5	36.4
ELRS nano receiver (BetaFPV)	None	12 × 19	None	0.7
VTX (Rush Tank Ultimate Mini)	None	28 × 28 × 3.3	20 × 20	4.46

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

DJI	O4 Air Unit specs	web	Publisher's page; dimensions are facts
Unmanned Tech blog (maker review)	DJI O4 technology review	web	Publisher's page; dimensions are facts
GetFPV (DJI spec)	DJI O3 Air Unit	web	Publisher's page; dimensions are facts
ReadyMadeRC (Caddx spec)	Caddx Ant	web	Publisher's page; dimensions are facts
Unmanned Tech (Caddx spec)	Caddx Ratel 2	web	Publisher's page; dimensions are facts
Rotorama (Foxeer spec)	Foxeer Predator 5 Mini	web	Publisher's page; dimensions are facts
BetaFPV	ELRS Nano receiver	web	Publisher's page; dimensions are facts

Free files

★ Free files 5 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json

camera-cage-14mm	Side-plate cage for 14 mm FPV cameras: M2 slots for the side screws (any position), 2 × M3 base	STEP · STL
camera-cage-19mm	Side-plate cage for 19 mm FPV cameras: M2 slots for the side screws (any position), 2 × M3 base	STEP · STL
camera-cage-22mm	Side-plate cage for 22 mm FPV cameras: M2 slots for the side screws (any position), 2 × M3 base	STEP · STL
camera-body-19x19x20	Micro 19 mm FPV camera body envelope 19 × 19 × 20	STEP · STL
dji-o4-pro-camera-25.55x20x23.3	DJI O4 Air Unit Pro camera envelope 25.55 × 20 × 23.3	STEP · STL

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Plain text: sheet.txt · JSON: /api/geometry?object=fpv-cameras-and-air-units