BACKFOCUSING PROCEDURE ON AN EX-3

[petowen18]

Could anyone advise me whether it is necessary to repeat the backfocusing procedure in both Position 1 and Position 2 of the ND filter switch in addition to the 'zero' position on an EX-3?  Thanks, Peter R. Owen

[Anonymous]

Hi Peter,

Hopefully a community member can help.

Best wishes,

M

[Win_88]

Hi petowen18

Nothing in the Manual says repeating the focus will be needed, but I'd say it depends on the situation. If your subject remains in focus, you won't need to re-focus.

You can find the Manual here: https://www.sony.com/electronics/support/res/manuals/4183/41838561M.pdf

Win_88

[petowen18]

Many thanks for your response.  Despite consulting the manual no reference is made to backfocus on settings one and two of the ND filter.  I have seen reference somewhere regarding backfocusing the ND filter settings, but I can't remember where - I wish now, I  had made a note of the location!  Your solution sounds logical so that's what I'll do.  Thanks for the advice.

                                                                            Regards, Peter Owen

[Joe_Dohn]

I may be looking too far into it here, but I'm under the impression you're referring to the PMW-EX3 as opposed to the NEX-3. If I somehow managed to guess that correctly, since both are different cameras -the former being a Sony Professional one- there's a different manual for it on the Sony Pro website here: https://pro.sony/en_NZ/support-resources/pmw-ex3/manual

Hope this helps,

J.D.

[petowen18]

Hello, Joe,   Many thanks for your response - I should have preceded EX-3 with PMW.  The camera was purchased some months ago and I'm still trying to get my head round some of the procedures - particularly backfocusing - I read anything I can find on the Internet about this subject but have not come across a plethora of views regarding a requirement, or not, of performing backfocusing on position 1 and position 2 on the ND filters.   As you can probably guess, I ain't a pro, but I have and still do own a PMW-EX1 - purchased 11 years ago, which has performed superbly during that time without any focusing issues.  Both cameras are not running the latest firmware versions; a job I don't have the confidence to do, particularly reading some of the horror stories of some people attempting to do the job themselves  I guess I'll have to bite the bullet and get a Sony dealer to do it!  Anyway, thanks again.                                                                      Regards,  Peter Owen