Lens Info: DOF Gauge in EVF at DVinfo.net

Chris Hurd · September 19th, 2007, 03:47 PM

Here's a couple of snapshots which demonstrate how the Depth of Field gauge works in the EX1's viewfinder. It's selected as a menu item under Lens Info. Unlike some other display items, it's not sent over the outputs but appears only in the viewfinder and the flip-out LCD display. The gauge is dynamic and changes in real time as you make lens adjustments which affect depth of focus, such as focal length, exposure, distance to subject etc. The distance readout can be meters or feet. In my opinion it's a pretty handy feature to have. Click attached thumbnails to see these images large.

Greg Boston · September 19th, 2007, 03:57 PM

Of interest is how accurate the colors on the LCD appear vs. the real world through the lens of Chris' camera. It's like the LCD is a magnifying glass instead of a vf.

I'm referring to the lower left picture, BTW.

-gb-

Chris Hurd · September 19th, 2007, 04:09 PM

Top two shots show some glare by the way... the room lights bouncing off the LCD panel. I've been in that room before and it's difficult to shoot in there (Michael W. and Boyd can back me up on that). These are just quick and dirty snapshots from my Elph, a PowerShot SD800 IS.

Piotr Wozniacki · September 19th, 2007, 08:24 PM

Chris, did you find the LCD really outstanding in resolution, when compared to what we know from the Z1/V1?

Chris Hurd · September 19th, 2007, 10:10 PM

Yes I did find the LCD really outstanding in resolution, however I don't have enough direct experience with either the Z1 or the V1 to make an accurate comparison.

John Hewat · September 20th, 2007, 12:39 AM

I think I understand how it works, but how can the depth of field be different in each of those pictures if the aperture is the same at 5.6?

Piotr Wozniacki · September 20th, 2007, 01:19 AM

Quote:

Originally Posted by John Hewat

I think I understand how it works, but how can the depth of field be different in each of those pictures if the aperture is the same at 5.6?

I was asking myself the same question, but then noticed it was zoomed differently (Z00 vs Z60).

Paul Dhadialla · September 20th, 2007, 02:42 AM

Chris, I noted you are inside and the camera is at -3DB gain and set at 5.6

The picture seems fairly bright on the LCD

Would you say that the camera is more sensitive than say a Z1 - generally

Thanks kindly
Paul

Peter Jefferson · September 20th, 2007, 02:48 AM

Quote:

Originally Posted by Chris Hurd

Yes I did find the LCD really outstanding in resolution, however I don't have enough direct experience with either the Z1 or the V1 to make an accurate comparison.

I dont think you need to mate.. considering the pixel count of the panel itself, and the actual impact this camera will make wihtint he market as a whole, i dont think keeping the LCD comparisons in the "sony only" realm to be very fruitful.. in any case, i think the panel will be compared to every other panel out there.. from every other maker..

Alister Chapman · September 20th, 2007, 11:00 AM

When I used the EX1 I found the LCD to be very sharp with excellent colour reproduction. At viewing distances of 3ft/1m it was difficult to see the additional sharpness over a Z1 LCD. However when you got really close you could see that it is sharper. When you use the image zoom function for focus assist (which works while recording!) you get a 1 for 1 pixel for pixel mapping so you are seeing the full resolution of the recorded image. The EX is quite a bit more sensitive than a Z1, maybe 1.5 to 2 stops.

Paul Dhadialla · September 20th, 2007, 06:07 PM

Hi Alister ! wow 1.5 to 2 stops - that is amazing.
Given that the noise is comparable at the same settings - this is definately good news.

I'd be putting this to use under various low light situations (including weddings) so that is definately a plus.

Thanks
Paul

Boyd Ostroff · September 20th, 2007, 06:13 PM

The interesting thing is... if you're right about the "speed" of the EX then it would be neck and neck with the PD and VX series (based on my personal experience with a VX2000 and Z1). If so then that would answer one of the most common arguments against making the switch to HD.

September 19th, 2007, 03:47 PM	#1
Chris Hurd Obstreperous Rex Join Date: Jan 2001 Location: San Marcos, TX Posts: 27,368 Images: 513	Lens Info: DOF Gauge in EVF Here's a couple of snapshots which demonstrate how the Depth of Field gauge works in the EX1's viewfinder. It's selected as a menu item under Lens Info. Unlike some other display items, it's not sent over the outputs but appears only in the viewfinder and the flip-out LCD display. The gauge is dynamic and changes in real time as you make lens adjustments which affect depth of focus, such as focal length, exposure, distance to subject etc. The distance readout can be meters or feet. In my opinion it's a pretty handy feature to have. Click attached thumbnails to see these images large. Attached Thumbnails __________________ CH Search DV Info Net \| 20 years of DVi \| ...Tuesday is Soylent Green Day!

September 19th, 2007, 04:09 PM	#3
Chris Hurd Obstreperous Rex Join Date: Jan 2001 Location: San Marcos, TX Posts: 27,368 Images: 513	Top two shots show some glare by the way... the room lights bouncing off the LCD panel. I've been in that room before and it's difficult to shoot in there (Michael W. and Boyd can back me up on that). These are just quick and dirty snapshots from my Elph, a PowerShot SD800 IS. __________________ CH Search DV Info Net \| 20 years of DVi \| ...Tuesday is Soylent Green Day!

September 19th, 2007, 08:24 PM	#4
Piotr Wozniacki Inner Circle Join Date: Aug 2006 Location: Poland Posts: 4,086	Chris, did you find the LCD really outstanding in resolution, when compared to what we know from the Z1/V1? __________________ Sony PXW-FS7 \| DaVinci Resolve Studio; Magix Vegas Pro; i7-5960X CPU; 64 GB RAM; 2x GTX 1080 8GB GPU; Decklink 4K Extreme 12G; 4x 3TB WD Black in RAID 0; 1TB M.2 NVMe cache drive

September 19th, 2007, 10:10 PM	#5
Chris Hurd Obstreperous Rex Join Date: Jan 2001 Location: San Marcos, TX Posts: 27,368 Images: 513	Yes I did find the LCD really outstanding in resolution, however I don't have enough direct experience with either the Z1 or the V1 to make an accurate comparison. __________________ CH Search DV Info Net \| 20 years of DVi \| ...Tuesday is Soylent Green Day!

September 20th, 2007, 12:39 AM	#6
John Hewat Major Player Join Date: Dec 2005 Location: Melbourne, AUSTRALIA Posts: 735	I think I understand how it works, but how can the depth of field be different in each of those pictures if the aperture is the same at 5.6? __________________ John Hewat Mammoth Media Productions

September 19th, 2007, 03:57 PM	#2
Greg Boston Wrangler Join Date: Oct 2003 Location: DFW area, TX Posts: 6,117 Images: 1	Of interest is how accurate the colors on the LCD appear vs. the real world through the lens of Chris' camera. It's like the LCD is a magnifying glass instead of a vf. I'm referring to the lower left picture, BTW. -gb-

September 20th, 2007, 02:42 AM	#8
Paul Dhadialla Regular Crew Join Date: Feb 2002 Location: Canada Posts: 143	Chris, I noted you are inside and the camera is at -3DB gain and set at 5.6 The picture seems fairly bright on the LCD Would you say that the camera is more sensitive than say a Z1 - generally Thanks kindly Paul

September 20th, 2007, 11:00 AM	#10
Alister Chapman Inner Circle Join Date: Dec 2005 Location: Bracknell, Berkshire, UK Posts: 4,957	When I used the EX1 I found the LCD to be very sharp with excellent colour reproduction. At viewing distances of 3ft/1m it was difficult to see the additional sharpness over a Z1 LCD. However when you got really close you could see that it is sharper. When you use the image zoom function for focus assist (which works while recording!) you get a 1 for 1 pixel for pixel mapping so you are seeing the full resolution of the recorded image. The EX is quite a bit more sensitive than a Z1, maybe 1.5 to 2 stops. __________________ Alister Chapman, Film-Maker/Stormchaser http://www.xdcam-user.com/alisters-blog/ My XDCAM site and blog. http://www.hurricane-rig.com

September 20th, 2007, 06:07 PM	#11
Paul Dhadialla Regular Crew Join Date: Feb 2002 Location: Canada Posts: 143	Hi Alister ! wow 1.5 to 2 stops - that is amazing. Given that the noise is comparable at the same settings - this is definately good news. I'd be putting this to use under various low light situations (including weddings) so that is definately a plus. Thanks Paul

September 20th, 2007, 06:13 PM	#12
Boyd Ostroff Wrangler Join Date: Dec 2002 Location: Mays Landing, NJ Posts: 11,801	The interesting thing is... if you're right about the "speed" of the EX then it would be neck and neck with the PD and VX series (based on my personal experience with a VX2000 and Z1). If so then that would answer one of the most common arguments against making the switch to HD.