D1X back focusing

Drifter · 12th March 2003

hi,

any D1X user have experience of the abv mentioned problem??
if yes how did u try to solve it??
thanx

drifter

Jed · 12th March 2003

Hiya Drifter,

Contact me privately if you need any help.

roygoh · 13th March 2003

May I know what is back focusing?

Thanks!

Roy

Darren · 13th March 2003

I have experienced this before, basically the image appears to be in focus when viewed thru the viewfinder, but the actual shot will be OOF and the focus point is a couple feet behind the subject.

Larry · 13th March 2003

Quote:

Originally posted by Darren
I have experienced this before, basically the image appears to be in focus when viewed thru the viewfinder, but the actual shot will be OOF and the focus point is a couple feet behind the subject.

oh my gawd is that what it's called??? i had this problem with my D100 before and i brought it to Nikon. they tinkered with it for a few days and then it was alright.

i thought the AF points were misaligned....

Wolfgang · 13th March 2003

And out of curiousity... how can this back focusing be solved?

ckiang · 13th March 2003

Thom Hogan (of Nikon Field Guide) mentioned it briefly here:

http://www.bythom.com/fujis3.htm

Quote:

Toughen up the chassis under the mirror box and check the focus sensor positions carefully. Nikon's autofocus sensors live at the bottom of the mirror box, looking up at the partially silvered mirror. They are incredibly sensitive to positioning, and any misplacement or movement on their part tends to produce back focus or front focus or just plain misfocus. I've seen enough S2 Pros with slight focus problems to wonder about the rigidity of the structure holding the autofocus sensors (perhaps they're even moving due to changes in materials due to temperature variations). Moreover, the only other Nikon bodies to ever show this kind of problem all have one thing in common: there's a built-in battery compartment underneath the main body (e.g., I've never heard of an N80 that experiences this issue, but the Nikon D1 models most certainly have it). I haven't had any focusing problems on my S2 Pro (nor the prototype I used for several months), but it can't hurt to over-engineer this section and tighten alignment procedures.

ckiang · 13th March 2003

Quote:

Originally posted by Wolfgang
And out of curiousity... how can this back focusing be solved?

After focus lock, take two steps BEHIND.

Regards
CK

roygoh · 13th March 2003

I see...have not notice on my new purchase yet....

- Roy

12th March 2003	#1
Drifter Member Join Date: May 2002 Posts: 55	D1X back focusing hi, any D1X user have experience of the abv mentioned problem?? if yes how did u try to solve it?? thanx drifter

13th March 2003	#3
roygoh Moderator Join Date: Jan 2002 Location: Northwest Posts: 5,042	May I know what is back focusing? Thanks! Roy __________________ As complexity rises, precise statements lose meaning and meaningful statements lose precision.

13th March 2003	#4
Darren ClubSNAP Admin Join Date: Jan 2002 Location: ClubSNAP HQ Posts: 7,473	I have experienced this before, basically the image appears to be in focus when viewed thru the viewfinder, but the actual shot will be OOF and the focus point is a couple feet behind the subject. __________________ Tweet?

13th March 2003	#6
Wolfgang Moderator Join Date: Apr 2002 Location: Riddle Realms Posts: 5,831	And out of curiousity... how can this back focusing be solved? __________________ -- "High Wired, Dream Sired"

13th March 2003	#9
roygoh Moderator Join Date: Jan 2002 Location: Northwest Posts: 5,042	I see...have not notice on my new purchase yet.... - Roy __________________ As complexity rises, precise statements lose meaning and meaningful statements lose precision.

12th March 2003	#2
Jed Senior Member Join Date: Jan 2002 Location: UK Posts: 3,081	Hiya Drifter, Contact me privately if you need any help.