Is the sighting of the crescent moon using devices such as a telescope considered valid?

The questioner : I say, my Shaykh, this American brother, he says that they saw the crescent moon using these telescopes, so he asks, my Shaykh, is this sighting considered valid for establishing the entry of the month of Shawwal?

The Shaykh : There is no objection if it is a visual sighting.

The questioner: Yes.

The Shaykh : He said to you like this, meaning that the telescope has two methods of sighting, just as I see, for example, with these glasses.

The questioner : Magnification.

The Shaykh : Magnification. But if the telescope reflects the rays, so that the crescent is seen after it has set.

The questioner : Yes.

The Shaykh : This is not considered valid.

The questioner : It appears from his words, my Shaykh, that ... .

The Shaykh : Therefore, I say that if that is the case, it is a valid religious sighting.

The questioner : Yes, my Shaykh, here in ... .