Values of all params:
find_ncs {
  input_files {
    ncs_in_type = None *chains sites ncs_file
    ncs_in = "AutoBuild_run_1_/TEMP0/refined_pdb_in.pdb"
    mtz_in = "AutoBuild_run_1_/TEMP0/map_coeffs.mtz"
    labin = ""
  }
  output_files {
    params_out = "AutoBuild_run_1_/TEMP0/find_ncs_params.eff"
    ncs_out = "find_ncs.ncs_spec"
    ncs_mask_file = None
    ncs_au_file = None
  }
  crystal_info {
    resolution = None
  }
  directories {
    temp_dir = "AutoBuild_run_1_/TEMP0"
    output_dir = "AutoBuild_run_1_/TEMP0"
    gui_output_dir = None
  }
  control {
    verbose = True
    debug = False
    raise_sorry = False
    dry_run = False
    require_nonzero = True
  }
  ncs_parameters {
    ncs_restrict = 0
    force_ncs = False
    optimize_ncs = True
    try_density_after_ha = True
    target_ncs_operators = None
    ncs_copies_max = None
    target_ncs_cc = 0.8
    minimum_ncs_cc = 0.3
    fraction_ncs_min = 0.05
    n_try_ncs = 3
    ncs_thorough = 8
    ha_ds_window = None
    ha_window_max = 30
    dist_cut_ncs = None
    min_length = 15
  }
  job_title = None
}
find_ncs_from_density {
  input_files {
    mtz_in = None
    labin = ""
    center_pdb_in = None
    density_mtz_in = None
    density_labin = ""
  }
  output_files {
    centers_pdb_out = "guess_molecular_centers.pdb"
    log = "find_ncs_from_density.log"
    ncs_spec_file = "find_ncs_from_density.ncs_spec"
    params_out = "find_ncs_from_density_params.eff"
    ncs_mask_file = None
  }
  directories {
    temp_dir = "temp_dir"
    output_dir = ""
  }
  density_search {
    density_radius = 10
    peak_separation = 15
    density_peaks = 20
    delta_phi = 20
    ncs_copies_max = None
    min_ratio_to_top_cc = 0.75
    minimum_ncs_cc_from_density = 0.4
    fraction_ncs_min_from_density = 0.05
    dump_ncs_density = False
  }
  find_centers {
    smoothing_radius = None
    n_center_find = None
    n_center_use = 1
  }
  crystal_info {
    resolution = 4
    solvent_fraction = 0.5
  }
  control {
    verbose = True
    debug = False
    raise_sorry = False
    dry_run = False
    resolve_command_list = None
  }
}

Using simple_ncs_from_pdb to find NCS from AutoBuild_run_1_/TEMP0/refined_pdb_in.pdb
Optimizing NCS
Reading NCS information from:  AutoBuild_run_1_/TEMP0/NCS_optimize.log
NCS formatted for resolve in AutoBuild_run_1_/TEMP0/find_ncs.resolve
NCS formatted for phenix.refine in AutoBuild_run_1_/TEMP0/find_ncs.phenix_refine
NCS formatted as ncs_spec (for autosol/autobuild etc) in AutoBuild_run_1_/TEMP0/find_ncs.ncs_spec

Citations for find_ncs:

Adams PD, Afonine PV, Bunkoczi G, Chen VB, Davis IW, Echols N, Headd JJ, Hung
LW, Kapral GJ, Grosse-Kunstleve RW, McCoy AJ, Moriarty NW, Oeffner R, Read RJ,
Richardson DC, Richardson JS, Terwilliger TC, Zwart PH. (2010) PHENIX: a
comprehensive Python-based system for macromolecular structure solution. Acta
Cryst. D66:213-221.