According to new data, only one of the 17 high-speed cameras in East Midlands is a digital camera.
Increasing the number of digital cameras will help reduce crashes, activists say, as they are more reliable than using standard film.
At present, only 16 digital cameras are used for 258 cameras, and the shooting time is longer.
The security partnership in the region responded to a survey of road safety support.
According to figures commissioned by the chief police association, there are no figures for Derby and Derbyshire, with only 113 standard or "wet film" operating units.
The county's road safety partnership is not intended to escalate in the next 12 months.
A spokesman for the Derby and Derby County Road Safety Partnership said: "We recognize that digital cameras can provide long-term
While saving long-term efficiency, it is expensive to install.
"We are currently reviewing the types of cameras we use and exploring the cost of switching to digital cameras.
"Lincoln County currently does not have a digital camera, but plans to have 15 in the next 12 months.
It has 52 wet film cameras.
John Sidel of the Lincoln County Road Safety Partnership said: "[Digitization]
We have been slow because of the procurement and bidding process we have experienced, after all, public funds.
"There is only one digital camera in Leicester and 32 devices that need to be replaced and developed for film.
Jonathan Clarkson, a road safety partner from Leicester and Rutland, said the group found that its wet film camera's speed enforcement in the area was still reliable.
There are 62 wet film cameras in Nottingham county, and it is planned to add another digital camera to the existing 15 cameras.
A spokesman for the Nottingham county security camera partner said they are always digital whenever new cameras are installed.
Nick Batty of road safety group Brake said more speed cameras should be transferred to digital devices, but accepted budget cuts have reduced the authority's ability to update technology.
"High-speed cameras have proven effective in reducing devastating crashes and casualties," he explained . ".
"We therefore urge the government to fund the road safety partnership so that they can invest in the most effective law enforcement technology.
"It is up to the local authorities to work with the local community to decide their spending priorities and set the budget accordingly," said road safety minister Stephen Hammond . ".
"However, we want road safety to be a priority for local communities and local spending to reflect this.