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Archive 2011 · Nex-7 specs and videos....

uhoh7
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p.1 #1 · p.1 #1 · Nex-7 specs and videos....

http://www.engadget.com/2011/08/24/sony-unveils-nex-7-24-3-mp-sensor-oled-viewfinder-1199-price/

full specs:
http://presscentre.sony.eu/content/detail.aspx?ReleaseID=6940&NewsAreaId=2

there's an official sony promo out too, but can't find it this sec....

Edited on Aug 24, 2011 at 05:47 AM · View previous versions

Aug 24, 2011 at 05:46 AM

ricardovaste
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p.1 #2 · p.1 #2 · Nex-7 specs and videos....

Anyone work out whether the Zeiss 24/1.7 is a leaf shutter afterall or not?

Aug 24, 2011 at 05:47 AM

uhoh7
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p.1 #3 · p.1 #3 · Nex-7 specs and videos....

ricardovaste wrote:
Anyone work out whether the Zeiss 24/1.7 is a leaf shutter afterall or not?
great question!

Aug 24, 2011 at 05:48 AM

ricardovaste
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p.1 #4 · p.1 #4 · Nex-7 specs and videos....

I can't find anything on the spec on dpreview, nor anything written on the lens, so it's probably safe to assume that it's not a leaf shutter

Aug 24, 2011 at 05:52 AM

Sami Ruusunen
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p.1 #5 · p.1 #5 · Nex-7 specs and videos....

man those are small pixels

Aug 24, 2011 at 06:06 AM

edwardkaraa
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p.1 #6 · p.1 #6 · Nex-7 specs and videos....

With the electronic first curtain, there would be no need for a leaf shutter.

Aug 24, 2011 at 06:07 AM

thrice
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p.1 #7 · p.1 #7 · Nex-7 specs and videos....

edwardkaraa wrote:
With the electronic first curtain, there would be no need for a leaf shutter.

So the sync speed of electronic shutters has caught up with the 1/500s of leaf shutters? (genuine question)

Aug 24, 2011 at 06:14 AM

ricardovaste
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p.1 #8 · p.1 #8 · Nex-7 specs and videos....

edwardkaraa wrote:
With the electronic first curtain, there would be no need for a leaf shutter.
(also a genuine question here)
So there will be no noise from the shutter? I don't fully understand what one is. Is there still a physical shutter infront of the sensor?

Aug 24, 2011 at 06:51 AM

edwardkaraa
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p.1 #9 · p.1 #9 · Nex-7 specs and videos....

thrice wrote:
So the sync speed of electronic shutters has caught up with the 1/500s of leaf shutters? (genuine question)
Why would you need such a speed with a Nex? I was thinking mostly about lower noise and vibration.

Aug 24, 2011 at 07:16 AM

edwardkaraa
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p.1 #10 · p.1 #10 · Nex-7 specs and videos....

ricardovaste wrote:
(also a genuine question here)
So there will be no noise from the shutter? I don't fully understand what one is. Is there still a physical shutter infront of the sensor?
There is a shutter but it only works as 2nd curtain. The exposure is initiated electronically.

Aug 24, 2011 at 07:19 AM

kwalsh
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p.1 #11 · p.1 #11 · Nex-7 specs and videos....

So the sync speed of electronic shutters has caught up with the 1/500s of leaf shutters? (genuine question)

No. I think you mean focal plane shutter here, BTW.

All Sony is doing (which is what Canon has been doing in live view for almost four years already) is using the electronic rolling shutter as a virtual first curtain while still using a mechanical second curtain. So sync speeds are still limited by a mechanical curtain. The electronic rolling first curtain and the mechanical second curtain will still effectively be sweeping the imager with a slit at the higher shutter speeds.

So there will be no noise from the shutter?

There will still be noise because of the mechanical second curtain. Two things are very useful about having an electronic rolling shutter first curtain:

- Lower shutter lag because a mechanical first curtain doesn't need to close and then begin opening on exposure.
- No vibration during the exposure. While the mechanical second curtain will still cause some camera shake that is only happening as the exposure ends.

Ken

Aug 24, 2011 at 07:22 AM

thrice
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p.1 #12 · p.1 #12 · Nex-7 specs and videos....

edwardkaraa wrote:
Why would you need such a speed with a Nex? I was thinking mostly about lower noise and vibration.

Why would you need such speed on a camera that traditionally uses a leaf shutter (Hassy/Large format)? With many people adapting f/0.95 optics and similar to Nex I would have thought it a real benefit for daylight fill flash photography. But whatevs, I'll move along.

Aug 24, 2011 at 07:22 AM

thrice
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p.1 #13 · p.1 #13 · Nex-7 specs and videos....

kwalsh wrote:
No. I think you mean focal plane shutter here, BTW.
Ken

No, I mean lens plane leaf shutters. I only use them with large format so I am not sure what the max sync speed is on medium format, the Leica S2 is 1/500s with lens plane leaf shutters and 1/125s with focal plane.

Aug 24, 2011 at 07:24 AM

kwalsh
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p.1 #14 · p.1 #14 · Nex-7 specs and videos....

thrice wrote:
No, I mean lens plane leaf shutters. I only use them with large format so I am not sure what the max sync speed is on medium format, the Leica S2 is 1/500s with lens plane leaf shutters and 1/125s with focal plane.

Whoops, I was ambiguous. I meant I think you mean "focal plane shutter" instead of "electronic shutter".

In LF the leaf shutters are often purely mechanical, but in compact cameras leaf shutters are electronically controlled just like focal plane shutters. Conversely the focal plane shutter of the Speed Graphic is a purely mechanical device.

And then to add to the confusion many people reserve "electronic shutter" for on chip reset and read rolling shutters or the rarely implemented but much anticipated "global electronic shutter" that would eliminate the need for any physical shutter anywhere in the camera.

Anyway, you know what you are talking about. I was just pointing out "electronic" didn't seem to really specify what you were referring to - you seemed to be referring to "focal plane".

And yeah, daylight fill flash is a good reason for high sync speeds. Many modern flash systems do have a strobe mode to allow this even above the sync speed but of course the guide number is lower in such a mode.

Ken

Edited on Aug 24, 2011 at 07:38 AM · View previous versions

Aug 24, 2011 at 07:36 AM

edwardkaraa
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p.1 #15 · p.1 #15 · Nex-7 specs and videos....

thrice wrote:
Why would you need such speed on a camera that traditionally uses a leaf shutter (Hassy/Large format)? With many people adapting f/0.95 optics and similar to Nex I would have thought it a real benefit for daylight fill flash photography. But whatevs, I'll move along.

Sorry I misunderstood your question.

I mean, yeah, it would have been nice to have the leaf shutter in the Zeiss, and there were strong rumors about that. But I guess the lens was still in the prototype stage, and Sony probably decided not to include it later on. However I don't imagine many people using the Nex 7 with flash, but that's my personal opinion, and I might be wrong

Aug 24, 2011 at 07:37 AM

shogo73
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p.1 #16 · p.1 #16 · Nex-7 specs and videos....

The MTF on the new 24mm 1.8 looks quite good.

http://www.sony.jp/ichigan/products/SEL24F18Z/feature_1.html#L1_30

Edit:
Oops. This has been already disclosed and discussed in another thread. Sorry.

Edited on Aug 24, 2011 at 11:01 AM · View previous versions

Aug 24, 2011 at 07:56 AM

Steve Spencer
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p.1 #17 · p.1 #17 · Nex-7 specs and videos....

Yes, those mtfs look good, but given how high the 10mm and 20mm lines are in the f/8 graph, it looks to me like they are theoretical rather than actual measurements. Even if they are actual measurements the microcontrast (i.e., the 40mm line) in the outer third of the image doesn't look zeiss-like stopped down to f/8, although the center looks excellent. Let's see how the lens performs. My guess from the mtfs is that it will be a very good, but not quite excellent lens, it will be better for portraits (where corner and edge sharpness are less important) than landscapes (where edge to edge sharpness is often important), and the mtfs look promising for bokeh as well. There is a lot you can't tell from an mtf, however.

Aug 24, 2011 at 08:31 AM

ken.vs.ryu
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p.1 #18 · p.1 #18 · Nex-7 specs and videos....

here's the nex-7 introduction video
http://sonyalphanex.blogspot.com/2011/08/sony-alpha-nex-7-introduction-video.html

If you had to choose - 24mm ZA or the NEX-7?

Aug 24, 2011 at 08:38 AM

dasrocket
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p.1 #19 · p.1 #19 · Nex-7 specs and videos....

edwardkaraa wrote:
Why would you need such a speed with a Nex? I was thinking mostly about lower noise and vibration.

With the weight of the NEX, any help with vibration would be beneficial.

Aug 24, 2011 at 10:37 AM

dasrocket
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p.1 #20 · p.1 #20 · Nex-7 specs and videos....

edwardkaraa wrote:
Sorry I misunderstood your question.

I mean, yeah, it would have been nice to have the leaf shutter in the Zeiss, and there were strong rumors about that. But I guess the lens was still in the prototype stage, and Sony probably decided not to include it later on. However I don't imagine many people using the Nex 7 with flash, but that's my personal opinion, and I might be wrong

With the (finally) on board flash, I would use it as fill in in high contrast daylight shots. I found that very effective with my LX-3

Aug 24, 2011 at 10:40 AM


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