light leak or bad lab job?

[Autocord6x6]

Hi, got some developed negs back and really disappointed with the results...can't work out if there's an issue with my camera - Pentax 6x7 - or the lab did a bad job.

not all my images have these marks/anaomolies so I don't know what's up.



any input is appreciated.

 

[jcdeboever]

Looks like poor development technique / process.

 

[webestang64]

That is for sure poor development.

 

[Soocom1]

Light leaks (except highly unusual ones) will be consistent mostly over the whole of the negative and typically with rays of contrast that are straight.
(though again not only).
That is bad development! the ungulations are uneven and are blobish indicating a liquid issue not light rays.