EVF Question

[Dave Weber]

Can anyone tell me if the EVF is Y,PB, PR ?

Also does anyone know what the pin config is for the EVF?

 

[NateWeaver]

What I've inferred from posts going way back, is that only the HD-SDI/HDMI outputs are encoded "video style", which is to say digital component.

Both the LCD and EVF seem to have their own resolution (and other) requirements, and the electronics that drive them are actually in the camera body. This would mean the pinout for each is suited only for the LCD device in each.

 

[Brook Willard]

It's essentially a DVI+power connection modified to a Lemo connector, 1280x848.

 

[Dave Weber]

Thanks Brook,

I knew you were out there and could answer what I needed. :weight_lift:

 

[Graeme Nattress]

It's proprietary digital.

Graeme

 

[Brook Willard]

Am I mistaken in calling it DVI, Graeme? I don't want to be putting the wrong info out there...

 

[Mark Toia]

I so need a EVF, someone please tell me when they are shipping.

#158

 

[Scott Webster]

Can someone confirm the refresh rate on the EVF? Seems to have a bit of flicker to it.

 

[Mike Prevette]

try it with the "open gate" viewing mode.

 

[Stuart English]

Evf

Evf

Can someone confirm the refresh rate on the EVF? Seems to have a bit of flicker to it.

Assuming that you are shooting 25 fps, the default refresh rate would be 50 fps. At 24 fps it would be at 48 fps. You can change the refresh to a fixed rate of 60 fps in the MONITOR menu - change from SYNC to FIXED. This setting only affects the EVF output.

Open Gate does something else. Its where the sensor frame rate is over clocked 2x relative to the recorded frame rate. For example at 24 fps recording the sensor captures at 48 fps, the EVF displays at 48 fps (or 60 depending on your setting above) but the recording to digital media is still 24. This setting affects all the outputs.

 

[Scott Webster]

Assuming that you are shooting 25 fps, the default refresh rate would be 50 fps. At 24 fps it would be at 48 fps. You can change the refresh to a fixed rate of 60 fps in the MONITOR menu - change from SYNC to FIXED. This setting only affects the EVF output.

Went to FIXED and the improvement was instant. Thanks Stuart.

 

[Barry Green]

Okay, but "open gate" -- as I understand it, that's showing a doubled refresh rate in the viewfinder, which is really not what you want -- as you'd rather see the actual frame rate to judge judder, etc. Yes?

But, on the other hand, if the sensor is running at double speed that should minimize skew; that's the technique the Infinity is employing to cut down on rolling shutter skew.

So, another question then: does running the sensor at double rate eat up more power?

 

[Stuart English]

Evf

Evf

"open gate" -- as I understand it, that's showing a doubled refresh rate in the viewfinder .. you'd rather see the actual frame rate to judge judder, etc. Yes?

if the sensor is running at double speed that should minimize skew

does running the sensor at double rate eat up more power?

Perhaps, hence its an option

No, skew is a function of exposure time.

Only marginally.

 

[Barry Green]

Exposure time is actually irrelevant in skew. Skew is a function of frame rate, not exposure time. Longer exposure can mask the amount of skew by hiding it under blur, but it's all still there. The skew comes from the speed that the shutter sweeps down the sensor, and that's fixed based on the frame rate.

So I would guess that you chose the faster refresh rate to minimize that skew? Solid choice, if that's what it's doing.