This is something that you must definitely check out and take advantage of. On seforimonline.org you can now download several versions of scanned originals of the masoretic text (the originals that were used to make Torah Scrolls). Here are two most notable ones that you can download, but there are other great books there as well, so please visit this web site and explore it.
Aleppo Codex Tanach Manuscript (High Resolution, 556MB, #263).
"The Aleppo Codex, known in Hebrew as Keter Aram Tzova is probably the most famous manuscript of the Tanach, written in the 9th or 10th century by the school of the great Massorete Ben Asher. This manuscript was used by the Rambam as a reference for the correct reading of the Tanach. The manuscript is kept in the Shrine of the Book at the Israel Museum in Jerusalem. This edition includes actual scanned color photos of the manuscript in high resolution. Unfortunately, most of the Pentateuch part had been lost."
Leningrad Codex Tanach Manuscript Facsimile (Complete, 713MB, #264)
"The Leningrad Codex (or Codex Leningradensis) is one of the oldest manuscripts of the complete Tanach produced according to the Tiberian mesorah. It is dated from the year 1008 according to its colophon. The manuscript is kept in the National Library of Russia in Sankt Petersburg labeled Firkovich B 19 A.This is a facsimile edition of the manuscript."
So please visit this link and take full advantage of this great resource. If you want to see only masoras, please enter "codex" in the search box of this link. Please note that these files can be very large, but such treasures worth downloading even if you have a dial-up connection.