Thanks MrB and Gwing.

For your guidance adding to the whole thread with valued suggestions . Most point to the 18-135 as a good `all rounder `that might work for the scope required before going further although really want a good option in the portrait/close action range to start. Hum bet, that I have not been on my own or who felt unsure ` which is best` never easy with so much choice if wanting to explore more. However, likely will buy 2 lens for now; a PX 18-135 PLUS one of either PX 50 ( 1. or a 17-50 Tamron ( I will check out some reviews) on DXO.

Cheers everybody for your help today

Hi John, yes you got me looking at these again. I had thought the 85mm might be the better static ` portait` lens at 1.4 in my budget range. Will check the 50 or 55 mm costs - why is the 55 the better f model ?

Hi Gravelrash, again good advice, not only the camera looks like we share a VFM approach in lens too !!

Thanks Matty, Yes realise Samyang is only MF which may be more tricky to master in the salsa action settings. So thats very useful feedback which helps my choices. Would the 18-135 work better there ?

Cheers for the advice John.

Was looking at starting without the `standard kit lens ` options especially having read many adverse remarks on some of them. However, the nearest could be Pentax 18-135 WR which lies in my ` core ` of lens as outlined. I have to build up however, already have some `freelance ` work lined up thus needing the 85 mm which kicks this choice up the list. What do you know of that lens ? Its modest price appeals but it seems to be getting good reviews too.

Planning to upgrade from Coolpix P510 which has been great kit to start but keen to invest in first ever SRL. Probably the reliable star camera K5ii plus 3 following lens ;

1. Sigma 10-20mm (4-5.6) for wide angle landscapes and urban scenes

2. Samyang 85mm (1.4) for portaits , salsa dance parties & live shows

3. An all purpose walk about for `travels` with telephoto either ; Pentax 18-135 / Pentax 50-200 or 18-200 Tamron or a Sigma.

Of course, very excited to be taking next steps by embracing the learning curve using the above top kit & mix of lens, later adding more primes , if money permitting as been amazed at high costs of some lens.

Any guidance on this mix would be welcome , before I buy from experienced shooters ? Indeed open to any other lens to consider as alternatives which might prove a better fit or improved performance without huge extra upgrade costs as a newly `retired ` exploring a new hobby.

Thanks look forward to reading feedback and comments.