Summary

The external thread of the filter mount in the lens. Filter diameter: 52 mm.
Thread size: m52x0.75

I was printing with a 0.4mm nozzle at 0.1mm resolution from PET-G (240/70 * C) material and it turned out perfectly.

It can be imported into a 3D program and attached, for example, with a filter, holder, lens hood.

Print Settings

Printer Brand:

Creality

                                            <p class="detail-setting printer"><strong>Printer: </strong>                     <div><p>Ender 3</p></div></p>                                                                                <p class="detail-setting rafts"><strong>Rafts: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting supports"><strong>Supports: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting resolution"><strong>Resolution: </strong>                     <div><p>0.1</p></div></p>                                                                                <p class="detail-setting infill"><strong>Infill: </strong>                     <div><p>10%</p></div></p>                                                    <strong>Filament:</strong> Any PET-G, ABS, PLA                Any                    <br>                        <p class="detail-setting notes"><strong>Notes: </strong>                    </p><div><p>Nozzle: 0.4 or smaller</p></div>

Thread m52 x 0.75