The only thing I did was crop to post on here. The 2nd photo I focused on the 3rd screw on the right in order to get the focus where I wanted it.
It seems to be back focusing more than the lens fine tune can adjust for.

I should point out that the point of focus is the 5th screw from the right, which is slightly thicker than the rest.

Hi folks, this has gone from a sweet spot question to a focusing issue.
even with a lens correction of +10 its still well out.
any ideas ?
No 1 is no correction
no 2 is focused on the 3rd screw on the right
no 3 is plus 10 correction
no 4 is manual focus.
p/f is not an issue here, just dont know what can be done about focus.

honestly folks, i appreciate all the input.
ive only recently taken up photography again after a couple of years off and having previously been a nikonian. though not to the extent that i am now a pentaxian
(Btw i think this is a super forum with an awesome wealth of knowledge and experience on here)

Derek

thanks again folks, will take a couple of shots in the morning (of clothes pegs) and post the results. one thing i havent tried is the lens without a filter, ive noticed some ghosting, depending on light and angles. that may also be an issue.
its good to know where the sweet spot is, on my da*300mm f4 it seems to be at f5.6, so i was surprised to learn that on the da*55 it was f4.
maybe its just me but it seemed like a lot of stops lost.
But i will test it in the morning with and without the filter.
thanks again

Derek

thanks for all the responses, i suppose i meant that if you had to go out to f4 then there wouldnt have been much point in getting an f1.4. if you know what i mean. i think i probably need to fine tune the focus. at times it seems a little hit and miss as to where focus actually is.
i wll post some unedited images as soon as i get a chance.
Again thanks for the replies.

Derek

thanks smeggypants. It would kind of defeat the purpose if you had to go out to f4 to reach peak sharpness ???:

Hi folks, does anyone out there know what aperture the da*55mm f1.4 is sharpest at. ?
Any help would be great.

Derek.

No. 3 is my favourite.

I was out getting paint today when I saw these two horses down at the river. I just had time to grab a couple of shots before they moved on.
Cc most welcome, as I am only getting to grips with this pentax set up.
I must say that I am loving it though.


IMGP2620crop by dr.shutter, on Flickr




IMGP2618crop by dr.shutter, on Flickr




IMGP2622crop by dr.shutter, on Flickr