Hello mikeb,

Here's a small code for conversion from meters to lat/long values. As source export resolution it takes the DEM resolution:

`import PhotoScan, math`

dx = dy = chunk.elevation.resolution

coord = PhotoScan.Vector([0,0,0])

cam_num = 0

for camera in chunk.cameras:

if not camera.transform:

continue

coord += chunk.crs.project(chunk.transform.matrix.mulp(camera.center))

cam_num += 1

crd = (1. / cam_num) * coord

#crd = chunk.crs.project(chunk.transform.matrix.mulp(chunk.region.center))

v1 = crd.copy()

v2 = PhotoScan.Vector([crd.x + 0.001, crd.y, crd.z])

vm1 = chunk.crs.unproject(v1)

vm2 = chunk.crs.unproject(v2)

res_x = (vm2 - vm1).norm() * 1000

#latitude

v2 = PhotoScan.Vector([crd.x, crd.y + 0.001, crd.z])

vm2 = chunk.crs.unproject(v2)

res_y = (vm2 - vm1).norm() * 1000

dx = dx / res_x

dy = dy / res_y

path = project_path + project_name + ".tif"

chunk.exportOrthomosaic(path, image_format=PhotoScan.ImageFormatTIFF, format = PhotoScan.RasterFormatTiles, dx=dx, dy=dy, raster_transform=PhotoScan.RasterTransformNone, write_kml=False, write_world=True)