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EX1 cant focus at far distance

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eldrin flores
EX1 cant focus at far distance
on Feb 21, 2010 at 7:38:59 am

We have the sony ex1, and I just found out that whenever I try to zoom in to a far subject about 100 meters, I cannot focus it. i tried doing an auto-focus, still the camera cant. Is there a problem with the lens? Can I resolve this?


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Rafael Amador
Re: EX1 cant focus at far distance
on Feb 21, 2010 at 7:52:55 am

The experts will forgive me if I say something wrong, but I think that at at full zoom no one camera can makes a perfect focus.
rafael

http://www.nagavideo.com


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eldrin flores
Re: EX1 cant focus at far distance
on Feb 21, 2010 at 8:11:01 am

We have both ex1 and ex3, I tried a comparison with the two, focusing the same subject at a far. The ex1 seems to have problem with the lens, It didnt focus, while the ex3 focused the subject perfectly.


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john sharaf
Re: EX1 cant focus at far distance
on Feb 21, 2010 at 3:02:14 pm

Sounds like a backfocus issue. If you can't fix by resetting backfocus return camera to dealer or Sony for repair.

JS





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eldrin flores
Re: EX1 cant focus at far distance
on Feb 22, 2010 at 6:46:02 am

thanks for the reply, Is there a backfocus adjustment for ex1?


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Don Greening
Re: EX1 cant focus at far distance
on Feb 22, 2010 at 7:28:24 am

[eldrin flores] "Is there a backfocus adjustment for ex1?"

Absolutely. You should read this first:

http://forums.creativecow.net/readpost/142/858473

and then this:

http://forums.creativecow.net/readpost/142/862962

If the flange back adjustment doesn't solve your issue you'll have to send it in to Sony or one of their authorized repair facilities.

- Don



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eldrin flores
Re: EX1 cant focus at far distance
on Feb 22, 2010 at 7:42:08 am

Ok, I think something is wrong with lens itself. Thanks guys for the help! :)


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Jared Meehan
Re: EX1 cant focus at far distance
on Sep 29, 2010 at 5:23:42 pm

Check the external ring which holds the elements together, if this gets loose you will have this problem. It normally will have a few dots of glue around the edge but they sometimes break loose and the ring will slowly loosen letting the elements move forward and effect focus


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Michael Weisman
Re: EX1 cant focus at far distance
on Apr 10, 2012 at 7:06:01 pm

Brilliant Jared!

I was having this exact same problem today - not being able to get a sharp focus at full zoom - and sure enough, just as Jared suggested, my front element ring was about 2 turns loose! Snugged it up and all is back to normal.

Thanks Jared! You saved me a trip to $ony $ervice!

Regards,

Michael


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Jared Meehan
Re: EX1 cant focus at far distance
on Apr 22, 2012 at 10:27:19 am

thats great mate!


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Michiel Overeem
Re: EX1 cant focus at far distance
on Jun 9, 2013 at 7:50:45 pm

Jared thanks! fixed the problem right away! :)


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Mark Levreault
Re: EX1 cant focus at far distance
on Aug 6, 2013 at 1:49:08 pm

Why didn't I think of that! Thank you so much! I was just about to send my EX1 back to Sony and I saw this. Crisis averted!

Cheers,

Mark


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