pentax da* 50-135 2.8

1498 posts
16 years
worcestershire

Posted 09/05/2017 - 11:46 Link

i have a mint da*50-135 but with out soft case or box would like to swap for a sigma/tamron af 70-200 2.8 or a sigma 120-400 the 50-135 is a fantastic lens very sharp

k5iis sigma 10-20 hsm tamron 17-50 pentax da 18-135 pentax A 50 f 1;1 7
pentax da*60-250 pentax da 55-300 sigma apo 150-500 hsm os pentax af1.7 adapter
Pentax af aw 1.4 rear converter and a flash

Edited by reso: 09/05/2017 - 11:50

andy_bell andy_bell

362 posts
13 years
Cambridge,
UK

Posted 09/05/2017 - 12:44 Link

Hi Reso,
I have both the Sigma HSM & the Pentax, they are two very different creatures, The 70-200 is very fast focussing, but no where near as sharp as the Pentax which is fairly pedestrian by comparison....

I you can Keep the Pentax, you wont find a sharper zoom.......an get a Sigma HSM as well....
& yes I do suffer from LBA, but it is nice to have both in the bag....

Andy

A few bits & Bobs

Edited by andy_bell: 09/05/2017 - 12:44

percy percy

425 posts
16 years
Herefordshire

Posted 09/05/2017 - 13:35 Link

Hi Phill,
I've had both the Pentax 50-135 and a Sigma 70-200mm F2.8 EX DG OS HSM. The Pentax is a lovely sharp lens but can be pretty slow to auto focus. The Sigma was fast and much more suited to auto sports, especially when turning off the Pentax SR and setting the in lens stabilisation to panning mode. I found my copy of the Sigma pretty sharp and not much behind the 50-135.