K-3 focus points


womble

Link Posted 22/12/2020 - 17:56
In the viewfinder of the K-3 are some thin black lines, including two curved lines indicating the centre of the frame. I noticed today that the central focus spot, which shows red when you are using it to focus, is not in the centre of the area indicated by the those lines but off to the right. I'm pretty sure it used to be central.

Has anyone else had this problem? It doesn't seem to impact the focusing of my AF lenses, but I have noticed lately that I am getting much sharper images with MF lenses if I use live view rather than the focus screen / focus confirmation.

Thanks, Kris.
Kris Lockyear
It is an illusion that photos are made with the camera… they are made with the eye, heart and head. Henri Cartier-Bresson
Lots of film bodies, a couple of digital ones, too many lenses (mainly older glass) and a Horseman LE 5x4.

My website

richandfleur

Link Posted 22/12/2020 - 19:29
Have you checked the viewfinder diopter adjustment dial hasn’t been moved?

bforbes

Link Posted 22/12/2020 - 19:32
Have you tried AF mode, Select, OK. That should centre the Focus point
Barrie
Too Old To Die Young

http://www.pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/

womble

Link Posted 23/12/2020 - 07:31
Hi both. The diopter adjustment is on maximum where it always is so I can use the camera without my glasses. All the various focus point selections work fine. I usually have it set to a single focus point and select the one nearest to the point I wish to focus on. The centre one is still inside the centre circle, but offset slightly to the right.

Many thanks, Kris.
Kris Lockyear
It is an illusion that photos are made with the camera… they are made with the eye, heart and head. Henri Cartier-Bresson
Lots of film bodies, a couple of digital ones, too many lenses (mainly older glass) and a Horseman LE 5x4.

My website

Lubbyman

Link Posted 23/12/2020 - 08:54
Has the camera had a knock recently? Are the other focus points absolutely symmetrical or offset in the same direction as the centre point? It sounds like something is out of alignment. My K3 centre focus point is dead centre and always has been.

Steve
Last Edited by Lubbyman on 23/12/2020 - 08:57

walkeja

Link Posted 23/12/2020 - 11:03
Why does everybody say "impact" when they mean AFFECT?
Pentax K1-ii and MZ6
Pentax Lenses 28-80 F, 300 DA*, 80-200 F, 35 F2.4 AL, M50 F1.7, 28-105 DFA, 20 F4 SMC
ONE UNITED Member

RobL

Link Posted 23/12/2020 - 11:11
The lines are I think marked on a detachable focus screen mounted above the mirror, check if that has moved slightly but be VERY careful as it is too easy to mark with scratches and fingerprints.
Last Edited by RobL on 23/12/2020 - 11:13

johnriley

Link Posted 23/12/2020 - 13:54
walkeja wrote:
Why does everybody say "impact" when they mean AFFECT?

If you impact something you have an impact on how it behaves, or indeed you also affect it. English is a very rich langauge with many ways of expressing the same ideas.
Best regards, John

erikro

Link Posted 23/12/2020 - 16:59
Hi.
I have had the same "fault", but it was a user fault, I had, chosen a a focuspoint that was not in the center.
I dont remember exatly how I did it. When you have all the focuspoints you can chose a point outside the center and then it will focus there.
Check where your focuspoint is.
Hope this can help you.
K5IIs/K-1 II + film cameraes
I love my Pentax, all of them.

Jonathan-Mac

Link Posted 24/12/2020 - 08:57
Sounds like the focusing screen has been knocked a little out of where it should be. I'd have a look, gently open the little brace that holds it in place and close it again to see if that helps.
Pentax hybrid user - Digital K3 & K200D, film 645 and 35mm SLR and Pentax (&other) lenses adapted to Fuji X digital
Fan of DA limited and old manual lenses

womble

Link Posted 24/12/2020 - 17:42
Lubbyman wrote:
Has the camera had a knock recently? Are the other focus points absolutely symmetrical or offset in the same direction as the centre point? It sounds like something is out of alignment. My K3 centre focus point is dead centre and always has been.

Steve

They are all offset to the right. The point that is immediately to the left of the centre point is overlying the left-hand curved line.

Thanks, Kris.
Kris Lockyear
It is an illusion that photos are made with the camera… they are made with the eye, heart and head. Henri Cartier-Bresson
Lots of film bodies, a couple of digital ones, too many lenses (mainly older glass) and a Horseman LE 5x4.

My website

womble

Link Posted 24/12/2020 - 17:43
erikro wrote:
Hi.
I have had the same "fault", but it was a user fault, I had, chosen a a focuspoint that was not in the center.
I dont remember exatly how I did it. When you have all the focuspoints you can chose a point outside the center and then it will focus there.
Check where your focuspoint is.
Hope this can help you.

In this case this isn't the problem. I can select focus points fine, but they are slightly off where they should be. Thanks, Kris.
Kris Lockyear
It is an illusion that photos are made with the camera… they are made with the eye, heart and head. Henri Cartier-Bresson
Lots of film bodies, a couple of digital ones, too many lenses (mainly older glass) and a Horseman LE 5x4.

My website

womble

Link Posted 24/12/2020 - 17:44
Jonathan-Mac wrote:
Sounds like the focusing screen has been knocked a little out of where it should be. I'd have a look, gently open the little brace that holds it in place and close it again to see if that helps.

I've have a look. I wonder if the old tool for opening the focus-screen tray will work with a K-3...
Kris Lockyear
It is an illusion that photos are made with the camera… they are made with the eye, heart and head. Henri Cartier-Bresson
Lots of film bodies, a couple of digital ones, too many lenses (mainly older glass) and a Horseman LE 5x4.

My website

Jonathan-Mac

Link Posted 25/12/2020 - 09:17
womble wrote:
Jonathan-Mac wrote:
Sounds like the focusing screen has been knocked a little out of where it should be. I'd have a look, gently open the little brace that holds it in place and close it again to see if that helps.

I've have a look. I wonder if the old tool for opening the focus-screen tray will work with a K-3...

I have one somewhere from my Katzeye screen for the K200D but if I remember correctly a pair of tweezers will work too.
Pentax hybrid user - Digital K3 & K200D, film 645 and 35mm SLR and Pentax (&other) lenses adapted to Fuji X digital
Fan of DA limited and old manual lenses
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