Madrid was then awarded a much-argued penalty one minute later as defender Pepe wrestled with Elche midfielder Carlos Sanchez in the penalty area during a free kick.
Ronaldo stepped up to convert the shot, six minutes into injury time.
"We have to be realists, but they have scored two goals against us from two actions that from my point of view should not have gone against us," said Albacar. "I end up with the sensation that they have robbed us. From having got a draw against a very good team, I go away feeling we've been mugged."
Madrid coach Carlo Ancelotti said that as a general rule he did not like talking about referee's decisions. "It's difficult to comment because my position from the bench is not so good, but I spoke to Pepe and he told me the penalty was clear."
Madrid's recent star signing Gareth Bale was sidelined due to a left thigh injury sustained during training last week.
Elsewhere, two goals each by Ivan Rakitic and Carlos Bacca gave Sevilla a 4-1 win over nine-man Rayo Vallecano.
Adrian Gonzalez pulled one back for Rayo in the 55th
Rayo lost defender Alejandro Galvez in the 65th minute on a second yellow card offense and forward Jonathan Viera in the 81st on a straight red card.
An injury time goal by Brazil midfielder Jonas gave Valencia a 1-0 win over Granada.
Barcelona leads the standings with Atletico Madrid second-place, also on 18 points after six matches, but on a worse goal differential. Real Madrid is third on 16 with Valencia seventh on nine, while Granada is 14th on five, Elche is 18th on three and Rayo is bottom, also on three.
