While the past and recent era of X-ray astronomy was dominated by imaging X-ray telescopes of
Wolter type with fine angular resolution but limited field of view (typically less than 1 degree),
the wide-field experiments based on Lobster Eye optics are expected to play an increasing role in
the future. In this contribution, the capabilities of the considered space mission LOBSTER based
on CubeSat 16U with wide-field Lobster Eye optics for investigating celestial X-ray sources are
discussed along with recent technological progress. We also show the results of the tests of the
quality image in various parts of the field of the lobster-eye telescope prototype.