Shadowy Daisy

Shadowy Daisy
by damned-truths

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0

Don't know what you mean by your eyesight being "probably nearly perfect." Do you have the results of an actual eyetest? It's quite possible you've got a little myopia (near-sightedness). Next, the diopter adjustment may well be a bit off, especially if you're holding the camera even a bit closer or farther from your eye than the baseline calibration is ...


2

I'm guessing you actually are seeing best when it is set to the other end of the adjustment range: +1 diopter. Just as someone can have 20/20 distance vision and need reading glasses with a positive diopter to see things that are close, even if you have 20/20 or better distance vision your eyes may no longer be able to relax enough to focus on very near ...


2

I know this is an old question, but I just tried using an iPhone to record through my DSLR viewfinder and it seemed to work ok.


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I'm assuming it is seeking wildly without ever finding focus, right? Are you sure there's enough contrast for phase-detect autofocus to work reliably? Beyond that, it is possible that the lens is decentered or that it just has issues with the AF system in that particular camera. Regardless of the underlying cause, it is probably worth telling the 6D to ...


2

It may be that you are experiencing what is often the downside of using an older third party lens on a newer camera body: AF incompatibility. Lens makers such as Tamron do not license technology from camera makers such as Canon to insure compatibility. Instead they reverse engineer the technology in order to design compatible lenses. When a manufacturer such ...



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