The man, former CFMEU Queensland president David Arthur Hanna, instead preyed on her vulnerability, raping and filming her while she could not object.

Hanna, 54, has been jailed for at least three years after being found guilty on Friday of the penile and digital rapes of the younger woman, who was too drunk to consent to sex, two years ago.

At times, she was "out cold".

He met her at a Fortitude Valley rooftop bar then went home with her in a taxi after she had been kicked out for intoxication.

As she had lost her handbag and house keys, Hanna cited his years of experience in the building industry to boast he could get her inside.

He knocked down her townhouse door and followed her into her Taigum home in Brisbane's north.

They had intercourse, but a Brisbane District Court jury found she did not have the cognitive capacity to consent due to her intoxication - or gave no consent at all.

While he barely showed signs of being drunk, witnesses testified she was "very intoxicated" and "dazed and confused".

It meant she was "extremely vulnerable", according to the Crown.

"He simply chose to take advantage of his position of dominance in exploiting her in a demeaning and humiliating way for his own sexual pleasure," crown prosecutor Michael Lehane said during sentencing.

"The manner in which he chose to record her on his phone exemplifies his uncaring and contemptuous attitude towards her."

Messages sent by the woman to a friend and ex-boyfriend during the ordeal read, "save me" and "please help me".

Hanna was found guilty of three counts of rape and another charge of recording in breach of privacy.

He testified he struggled to get an erection before having unprotected sex with her.

He used his phone to film himself digitally penetrating her, believing he was taking photographs, which he says she agreed to.

He says he continued to use the screen as a visual aid because of his poor eyesight, and later asked her to strike a "sexy pose" for him to photograph.

"(It) appeared to me that she was out cold," Judge Julie Dick said in sentencing.

"It was a demeaning act of rape, particularly the two digital rapes where it was pretty clear there wasn't a response from her.

"I thought your explanation for the video - that it was accident - was unconvincing which means that was a deliberate act."

Hanna was jailed for six years and won't be eligible for parole until February 2022.

It is his second criminal conviction in three months. He was handed a suspended sentence in December for destroying documents possibly relevant to the trade union royal commission in 2014.

The woman has suffered post-traumatic stress disorder, anxiety and depression since the incident.

The trial would have been "excruciating" for her, Judge Dick said.

"She comes across as an extremely brave person," she said.

"She was unflinching (in giving evidence)."

Australian Associated Press