Zone and hyperfocal focusing with FE lenses

Started Feb 17, 2014 | Questions thread
Fred Briggs
Fred Briggs Senior Member • Posts: 1,023
Re: DOF Preview

stevo23 wrote:

Fred Briggs wrote:

Mike Stratil wrote:

Trollman said that the A7 gives live view DOF preview. I own an A7R and I can't find any reference to DOF in the manual.

So how do we get DOF preview in the A7/R cameras?

-- hide signature --

Michael S

You can turn on Live View Display which is in settings 2, but even with this on, from my observations it appears that the aperture opens to some extent, though it seems not fully, while focusing, so the DOF portrayal will not be accurate until focus is achieved.

However from what I have observed, even with Live View Display turned off, although the aperture seems to fully open during focusing, once focus has been achieved then it appears to shut down to your selected value, so at this point, with respect to DOF, what you see should be what you get. However you will not see the brightness of the exposure realistically portrayed with Live View Display turned off.

How does the aperture open or close at all on the manual lens in question?

When using FE lenses, have you observed the aperture opening or closing during viewing? I'm curious if it's actually doing this, or if it's the EVF compensating. I've been assuming it's the EVF trying to give constant output.

Sorry - I was referring to FE lenses, not manual.

I have actually observed the aperture opening and closing, and different behaviour when in Live view Mode - and in fact posted about this a while ago:

And as for the concept of DOF itself, as another poster alluded to - it is all relative - so I'm not sure how valuable DOF preview is anyway:


-- hide signature --

"We are so small between the stars, so large against the sky." Leonard Cohen c1967

 Fred Briggs's gear list:Fred Briggs's gear list
Sony a6000 Sony E 55-210mm F4.5-6.3 OSS Sony E 10-18mm F4 OSS Sony E 16-50mm F3.5-5.6 PZ OSS Sony Vario-Tessar T* E 16-70mm F4 ZA OSS
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow