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Electronic Viewfinders


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Initial post: 22 Feb 2012 21:22:09 GMT
T. J. Byford says:
Are there any other cameras that use Duck/duct tape in place of film. Just wondering as I can get a large roll for around £6!

Well, my Sony EVF arrived on Monday so I will soon be able to carry out some tests with my legacy film lenses, and will post some views in due course. Just waiting for some decent weather!

This is some device, I can tell you, and I anticipate that it won't be long before an updated version will perform better than the optical systems of slrs. If, like me, you've only experienced evf's on current digital cameras, this new Sony will come as a revelation. The image is large and very transparent with virtually no artefacts. It is not quite there yet in direct comparison with optical reflex systems which still exhibit a slight edge in the crispness of the viewed image that only glass can give. But it sure beats the pants off older slr finders with old technology ground glass screens. More anon.

Posted on 22 Feb 2012 21:25:24 GMT
Hi TJ,
How does the EVF respond to movement - e.g. panning? Can the refresh rate keep up with the movement? When I looked at SLTs they were prone to "bleeding" of the image as I swung them around. The image was a bit synthetic looking, as you describe but it was noval to see a black and white image, say, of vivid colours through the viewing system.

Posted on 23 Feb 2012 10:09:20 GMT
X says:
Hi TJ, Doc! Please find a way of getting your eye behind the EVF Olympus sell for their Pen range and the XZ-1. Con a salesperson? It's thoroughly useful. I've probably sung its praises too often, but to be specific it keeps up well with panning, if it pixellates things very slightly and too briefly to be annoying.

In reply to an earlier post on 27 Feb 2012 20:56:17 GMT
T.J.Byford says:
Hi, Dr. A and X.
Sorry for delay, I've just now alighted on this new thread and which I came to by accident without realising it opened with my initial post. I don't know how this happened as I posted on another forum. I wasn't ignoring you.

As you know, the refresh rate of an EVF is influenced by the strength of the available light, so viewing now under the illumination of a ceiling mounted low energy saving 20 watt bulb, it will be inferior to that in daylight. All I can say at the moment is the EVF is advertised with a very high refresh rate and having just attached my Olympus f1.2/55mm (thought this would get your interest!) there is absolutely no lag wide open or at f2 as I pan round the lounge. Stopping down to f2.8 slight delays, like stuttering, are just becoming visible in parts of the lounge furthest from the light, but as I pan round towards subject matter receiving more direct light this stuttering stops completely at f2.8 and at f4 it is about the same as at f2.8 was in the lower light.

This supports what was happening, or strictly not happening, when I was simply playing with it during the daytime when I noticed no stuttering at all. Also, Dr. A. in response to your specific query no, it doesn't bleed, and I am fully aware of this phenomenon using my 6 year old Sony R1, which gives lovely colour streaks under the present lighting conditions!

X, I haven't seen nor can I test the Olympus model, but on paper the Sony is current state of the art with nearly 2.4 million dots, and which I believe is around 1 million more than its nearest competitor.

The difference this EVF makes is like viewing a 1080p Blu Ray disc after standard def TV, or watching a slide compared to HDTV. You think HDTV is good (the EVF) until you see a slide, (a good slr viewfinder).

In reply to an earlier post on 27 Feb 2012 21:03:04 GMT
Hi TJ,
I didn't know that the EVF refresh rate was dependent on the light level, and presumably aperture.

In reply to an earlier post on 27 Feb 2012 21:19:42 GMT
T.J.Byford says:
Dr. A. It is not something that I would have anticipated, but light level is certainly a factor in how well EVF's perform, the effect is easily visible, as I have been able to see for myself.

Posted on 28 Feb 2012 12:14:41 GMT
T.J.Byford says:
Dr.A, X.

It was a dull morning today and the first thing I did after brewing a nice cuppa, was to try out panning again. Using the f1.2 again, I panned quite quickly the view outside my lounge window and stopping right down to f16 there was no sign of the stuttering at all. So, even at such relatively low light levels, this indicates that under normal usage, no stuttering will be apparent.

In reply to an earlier post on 28 Feb 2012 12:20:30 GMT
Hi TJ,
The Nex EVF does cost as much as an entry level dSLR though.

In reply to an earlier post on 28 Feb 2012 12:32:23 GMT
T.J.Byford says:
Dr. A, that's very true, and when you see how physically small it is you don't get much bang for your buck. It does swivel up though, so it acts as a right-angle finder as well!

In reply to an earlier post on 28 Feb 2012 13:06:40 GMT
Last edited by the author on 28 Feb 2012 13:08:56 GMT
TJ,
I see there is a good used example on Ebay, in the USA, for £160. That's not bad even with shipping and taxes.
Have you tried any of the Sony SLTs for comparison with your NEX?
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Participants:  3
Total posts:  10
Initial post:  22 Feb 2012
Latest post:  28 Feb 2012

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