Author Topic: Canon EOS focus advance (<<) facility  (Read 2490 times)

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Offline Antonym

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Canon EOS focus advance (<<) facility
« on: March 28, 2013, 07:59:58 PM »
A 'muppet' question from a beginner, I'm afraid.   I believe that Canon EOS cameras (O! Heresy...)   have a facility whereby the focus can be advanced remotely by microscopic amounts, allowing the camera to be used for photo-stacking without recourse to a micrometer focusing rail.  Is this facility, or anything similar, available with the Sony A65? and, if so, how is it accessed?

Tony Moore.

Offline harveyzone

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Re: Canon EOS focus advance (<<) facility
« Reply #1 on: March 29, 2013, 09:59:14 PM »
Nope. This is not on any Sony camera (to my knowledge). I don't know Canon EOS models that well, so do not know this feature, but I am surprised if it is on entry level models.

There is micro adjust which is not available on the A65, but is on the A77 and A99. This is not designed for focus stacking/bracketing, but for correcting inaccuracies in AutoFocus calibration.

Tom Harvey

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Offline Antonym

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Re: Canon EOS focus advance (<<) facility
« Reply #2 on: March 29, 2013, 11:50:17 PM »
Many thanks, Tom,

As I suspected....zzzzzzz!   Anyone got a cheap micrometer focusing block??

Tony M.

Offline chappo1

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Re: Canon EOS focus advance (<<) facility
« Reply #3 on: March 30, 2013, 06:40:45 AM »
I bought one of these out of HK for ~ $A40  which is much the same as $US40 these days
How cheap is cheap?

http://www.ebay.com.au/itm/4-Way-Macro-Focusing-Focus-Rail-Slider-Shot-for-Nikon-Canon-Pe-ntax-Camera-LF92-/170877435861?pt=LH_DefaultDomain_15&hash=item27c916bfd5&_uhb=1#ht_2306wt_1139

Works fine for me

john
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Offline Antonym

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Re: Canon EOS focus advance (<<) facility
« Reply #4 on: March 30, 2013, 11:35:36 PM »
Thanks John - I already have one.  Unfortunately, the gearing is too coarse to deal with a 10x microscope objective.  I'll probably end up with an old microscope and a hacksaw.......

Tony. M.

Offline Clive

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Re: Canon EOS focus advance (<<) facility
« Reply #5 on: March 31, 2013, 05:56:19 AM »
Hi Tony.

The "pixel peeking" feature of the A77 and other SLT Sonys might help...not sure.

I purchased a focus rial a couple of years ago and although I rarely use it, it is quite precise. That and the pixel peeking feature would probably be good.

Regards

Clive
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