I have received a Notice of Inteded Prosecution for failing to comply with traffic light signal. Will requesting photographic evidence make a difference?

It is always worth asking for the photographic evidence, particularly as to prove the offence, the Police will have to show that your vehicle crossed the line whilst the red light was illuminated.  Although this is a strict liability offence, meaning that such evidence prevents any defence being raised, if the Police cannot produce the photograph, or evidence to support the allegation, they cannot prove the case.  You have nothing to lose by requesting the photograph.