Here's the thing - you need to word your complaint correctly. When you file an objection to the ticket, be specific: demand that they provide the device calibration certificate, its maintenance report, and the inspection protocol from the date the violation was recorded. Also request information about the camera installation - whether there's a permit for placing it in that location and whether it complies with GOST standards for distance and installation angle. You can do this either in a written objection or through the government services portal if that option is available there.
But here's the catch that people often miss: deadlines. You have to file your objection within 10 days of receiving the ticket. And if you blow past that deadline, even if the camera is installed totally wrong, it'll be way harder to challenge the fine. So don't put it off - start gathering evidence and writing your objection right away.
As for the error from the camera being tilted - yeah, that could be grounds for contesting it, but it's tough to prove on your own. You either need an expert or you have to find court precedents for your specific camera model in your region. Sometimes data about weather conditions on the day the violation was recorded helps - like if there was fog or dirt on the lens. But that also requires documentation.