Below is a link to a good video of Ulleungdo. Also, at 9 minutes and 22 seconds (9:22) into the video, you can see a view of "Dokdo" (Liancourt Rocks) far off in the distance from Ulleungdo. However, what is interesting about this view of "Dokdo" is that "Dokdo" disappears from view as the camera pulls back from its magnified view to a normal one. Another interesting thing is that Dokdo appears right above the point of a peak, which may be a landmark to help tourists with binoculars and telephoto lenses find the island.
I think this video is evidence of just how difficult it is to see "Dokdo" (Liancourt Rocks) from Ulleungdo. I doubt that fishermen and farmers travelling to Ulleungdo during Korea's Joseon period had binoculars or an observation point on top of a mountain with a sign and arrow pointing you in the direction of "Dokdo." This video is also evidence that most, if not all, of the photos on the Web taken of "Dokdo" from Ulleungdo are magnified.
The people who post these magnified photos on the Web are often trying to deceive people into believing that "Dokdo" is closer to Ulleungdo than it really is, which is an attempt to convince people that "Dokdo" was considered a neighboring island of Ulleungdo during Korea's Joseon period. (Steve Barber's Web site is a good example of this kind of deception. See HERE.) However, it is obvious from the video below that "Dokdo" (Liancourt Rocks) would not have been considered a neighboring island of Ulleungdo by any reasonable standard, which is almost certainly why Liancourt Rocks (Dokdo) never appeared on any of Korea's old maps.
Link to Video