soligor lenses

has anyone had any experience using the big soligors,i.e. 300mm or 400mm on pentax dslr? if so what are your views. thanks

I've no experience of the longer lenses but the shorter ones (28, 35, 135) that have passed through my hands have all been solid, if unremarkable, performers with above average build for third party lenses. Not really what you're asking I know, but I doubt there's many on here that have used the longer ones - try one for yourself and see.