sigma 18-35 1.8 art


Link Posted 29/12/2021 - 17:15
Advice on the above lens please
good points and bad
how is it on a k5 iis
k5iis k200d
8mm fisheye sigma 15mm sigma 10-20 3,5 hsm
tamron 17-50 2.8 pentax 18-55 al ii sigma 18-125 hsm tokina 28-70 atx pro ii pentax F 35-105 pentax A 50 1;1;7 pentax 55-300 sigma 70-200 apo ex 2.8
kenko pz af 1.5 tele tamron pz af 2.0 tele and a flash


Link Posted 29/12/2021 - 18:48
I used mine on a vanilla K5. I found the autofocus could be inconsistent, but I was using it mostly in very low light and in Tungsten light, which are not the K5's strengths. Sharpness was good, especially from 2.2 down. I still have it, but not used it in anger for a long time as I mostly shoot with a K1 now. Probably out to get rid of a numbr of my APS-C only lenses as even the K3 gets little use these days! The 18-35 is quite a large lens, but the range was useful
Everything Changes


Link Posted 30/12/2021 - 07:58
I have always found Sigma lenses inconsistent when it comes to focusing, especially the HSM versions and even the primes. I would dial them in with the focus adjustment on the camera and it would be spot on until the next time I mounted it when it would be out again even though it was still showing as adjusted.

The screw drive lenses were mostly fine which is why I still have a few.
. My Flickr
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