APS-C Sensor Crop Mode on Full Frame Camera

Started by Stedda, December 07, 2012, 02:03:35 PM

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

Stedda

I looked through the Don't Ask List and searched and I don't see this so please excuse me if it's already been asked and pay me no attention...


Nikon cameras have this and while I'm no programmer I'm assuming this a firmware item.

Nikon cameras are able to enter into a DX crop mode on FX camera bodies for extra "reach". Is this even remotely possible/worth the time.

Could be handy for lots of situations on full frame cameras.

Thanks for your time and keep up the awesome work!
5D Mark III -- 7D   SOLD -- EOS M 22mm 18-55mm STM -- Fuji X-T1 18-55 F2.8-F4 & 35 F1.4
Canon Glass   100L F2.8 IS -- 70-200L F4 -- 135L F2 -- 85 F1.8 -- 17-40L --  40 F2.8 -- 35 F2 IS  Sigma Glass  120-300 F2.8 OS -- 50 F1.4 -- 85 F1.4  Tamron Glass   24-70 2.8 VC   600EX-RT X3

RenatoPhoto

I am joining you on this one.  I wish ML could privide a 3X crop factor making the full frame sensor of the 5D3 of 5760x3840  pixels use only the center portion and came out with 1920x1280 HD video of superb quality.  I think we can all dream about it!

Here is and additional post on this subject:  http://www.magiclantern.fm/forum/index.php?topic=3758.0
http://www.pululahuahostal.com  |  EF 300 f/4, EF 100-400 L, EF 180 L, EF-S 10-22, Samyang 14mm, Sigma 28mm EX DG, Sigma 8mm 1:3.5 EX DG, EF 50mm 1:1.8 II, EF 1.4X II, Kenko C-AF 2X

Stedda

 Ok so something similar has been asked....

I think for Macro shooters, BIF, and Wildlife this could be extremely useful.
5D Mark III -- 7D   SOLD -- EOS M 22mm 18-55mm STM -- Fuji X-T1 18-55 F2.8-F4 & 35 F1.4
Canon Glass   100L F2.8 IS -- 70-200L F4 -- 135L F2 -- 85 F1.8 -- 17-40L --  40 F2.8 -- 35 F2 IS  Sigma Glass  120-300 F2.8 OS -- 50 F1.4 -- 85 F1.4  Tamron Glass   24-70 2.8 VC   600EX-RT X3

inigobar

I already ask for this feature, but the developers says that is a feature easy to do in post (http://www.magiclantern.fm/forum/index.php?topic=3583.0)
I agree that ing can be easily done in post, but i still think that this functionally could be useful. I dont know if implement it is possible or not. Best,  :)

Francis

It is not something you can do in post. This is a very different suggestion, to shoot video from a cropped portion of the sensor resulting in no scaling. This is not cropping images in camera.

Stedda

I don't own a Nikon but I don't think this is in camera cropping. Even though it may sound similar.

The on the spot reach that could be gained without swapping lenses could be helpful for many types of shooting.

Shooting a 100mm lens and cropping after the fact didn't put me further away from a macro subject and help to not disturb it.

5D Mark III -- 7D   SOLD -- EOS M 22mm 18-55mm STM -- Fuji X-T1 18-55 F2.8-F4 & 35 F1.4
Canon Glass   100L F2.8 IS -- 70-200L F4 -- 135L F2 -- 85 F1.8 -- 17-40L --  40 F2.8 -- 35 F2 IS  Sigma Glass  120-300 F2.8 OS -- 50 F1.4 -- 85 F1.4  Tamron Glass   24-70 2.8 VC   600EX-RT X3

RenatoPhoto

Quote from: inigobar on December 08, 2012, 02:18:28 AM
I already ask for this feature, but the developers says that is a feature easy to do in post (http://www.magiclantern.fm/forum/index.php?topic=3583.0)
I agree that ing can be easily done in post, but i still think that this functionally could be useful. I dont know if implement it is possible or not. Best,  :)

The mentioned post refers to IMAGE cropping which can be done in post without any benefits of doing it in the camera.  The real improvement would be to better use the full frame sensor using the cropped center portion to make HD video of only the center (magnified) portion of the sensor.

To illustrate this put your camera in video mode and use the zoom button to get the fine details and properly focus your shot.  At this point you are using the cropped portion of the sensor and getting full resolution of this portion of the sensor.  Now you shoot the video and look at it on your PC; will find out that all the details that you saw on the screen are lost!  Go back to the camera and look at the zoom  Live View details and then wish you could get a video of what shows in Live View. 

I have also hooked up my camera to my HD television via HDMI cable and do the same test.  It is amazing the amount of details that you can get from Live View in a cropped mode.  Maybe the only way to get this is with an external recorder...
http://www.pululahuahostal.com  |  EF 300 f/4, EF 100-400 L, EF 180 L, EF-S 10-22, Samyang 14mm, Sigma 28mm EX DG, Sigma 8mm 1:3.5 EX DG, EF 50mm 1:1.8 II, EF 1.4X II, Kenko C-AF 2X

RenatoPhoto

Ok, I WANT (PLEASE) 10920x1080 CROPPED DIGITAL VIDEO IN MY 5DMIII for a 3X crop factor.  If you folks at ML can doit I will donate $200.
http://www.pululahuahostal.com  |  EF 300 f/4, EF 100-400 L, EF 180 L, EF-S 10-22, Samyang 14mm, Sigma 28mm EX DG, Sigma 8mm 1:3.5 EX DG, EF 50mm 1:1.8 II, EF 1.4X II, Kenko C-AF 2X

supercar1000

I bump that, we really need this, especially on the 6D, video is horrible.
I'm into the 200$ donation as well.

Thanks!

1%

For images it would fix my tokina lenses on 6D. Like do a cropped Mraw or something. But the cropping only seems to work in LV.

Video we'll try. Its not 1920x1080 but its less scaling to do the center crop. The interpolation math produces whatever sizes, hopefully quality will be better than the full size. Waiting on FW to fully decompile to take a look. So much doesn't work on digicV ports yet so be patient.

supercar1000

Quote from: 1% on December 29, 2012, 10:40:45 PM
For images it would fix my tokina lenses on 6D. Like do a cropped Mraw or something. But the cropping only seems to work in LV.

Video we'll try. Its not 1920x1080 but its less scaling to do the center crop. The interpolation math produces whatever sizes, hopefully quality will be better than the full size. Waiting on FW to fully decompile to take a look. So much doesn't work on digicV ports yet so be patient.

I'd like this post if there was a "Like" button...

RenatoPhoto

Quote from: 1% on December 29, 2012, 10:40:45 PM
For images it would fix my tokina lenses on 6D. Like do a cropped Mraw or something. But the cropping only seems to work in LV.

Video we'll try. Its not 1920x1080 but its less scaling to do the center crop. The interpolation math produces whatever sizes, hopefully quality will be better than the full size. Waiting on FW to fully decompile to take a look. So much doesn't work on digicV ports yet so be patient.

I hope the IDA-Pro software will help speed up finding the details of Crop Mode video.
http://www.pululahuahostal.com  |  EF 300 f/4, EF 100-400 L, EF 180 L, EF-S 10-22, Samyang 14mm, Sigma 28mm EX DG, Sigma 8mm 1:3.5 EX DG, EF 50mm 1:1.8 II, EF 1.4X II, Kenko C-AF 2X

The Monitor Lizard

Very interested in having this feature on the 5d3 as well.

It's great that there's a crop mode for RAW video, but it would be fantastic (and super convenient) for a crop mode with regular h.264 video.

I'm absolutely willing to use my 5d3 to help test any development progress made in this direction.

SiSS


Audionut

I guess we can mark this one as DONE, for raw recording anyway.