sent pm ref 55-300 await reply,cheers

thanks to one & all for your help. have been on ebay & located one as per your suggestions, now to source some lenses.

is there a particular m42 adaptor for the k7 or pentax dslr,s in general?
i only ask as i bought one and it would seem you are fixing a metal plate to the camera body, when it is fitted to the lens, which will short the electrical contacts, which i would think will damage the camera. this has stopped me from trying any lenses. am i right to think this?

is this lens still for sale? just missed one on ebay

probably not a new thread ,if not i apologise. new to this side of computer use. any way my tamron 18-250 is kaput. i am thinking about a tamron 70-300 Di LD MACRO 1:2 a
sigma 70-300 DG MACRO or a
sigma 70-300 APO DG MACRO
i know low budget end, but needs must at the present time. any advice which one to go with much appreciated
Pentax K7, Sigma 105 MACRO, Pentax 10-17 Fisheye,Pentax 16-45,Pentax 50 1.7,Teleplus2x converter

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

thanks for all the replies. thought i would let you know some info i,ve been given & see if any of you have any thoughts, sigma are no longer producing the 180mm macro for sony or pentax. if this is correct it does not leave a 150 -180 range macro for pentax from any manufacturer,ive searched the net & can find nothing. does anyone out there know any diffent because i would really like one.thanks

picked up k7 today & lenses, now to sit down & study. in reply to gareth alas the busa has gone to a new home, the guys i rode with have civen up for various reasons so it did not get used,it,s gone to a good home though. anyway back to camera ,lovely thing really comfortable, feels really solid build quality. but i,m preaching to the converted, will shut up now, wait for the battery to charge and plough through the manual &pray for a good weekend to get out with it.cheers

hello ,in anwer to mike-p the reviews i read did not rate kit lens and put the 16-45 as a better option also staying local to purchase the difference was £50 which on the info i had was better spent toward the lens i purchased. if its wrong time will tell,unfortunately this is how we usually learn. or at least i do, hopefully not again with the vast resource of the pentax community to call on. cheers all

newbie here, don,t have a pentax yet . awaiting the arrival of the following Pentax K7(body only),pentax 16-45 f4,siga 105mm f2.8 macro. i hope to add pentax18-250f3.5-6.3 &sigma 150mmf2.8 macro as when finances allow, credit crunch and all that, oh,and a wife. hope i,ve made right choices, i know the camera is from write ups. any guidance much appreciated. once again nice to meet you all.