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Topics - kidfob

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HDR and Dual ISO Postprocessing / cr2hdr error on some DNGs
« on: April 26, 2021, 01:58:37 AM »
Im noticing cr2hdr crashes on certain DNGs with cr2hdr. DNG attached so others can reproduce:

Raw Video / 2.5k Crop Mode Dual ISO Continuous Shooting Discovery!?
« on: June 08, 2016, 07:19:04 AM »
Forgive me if this is already public knowledge, but I believe I may have found a solution to a problem that has been bugging me for quite some time.

Until now, I had not been able to shoot in crop mode at 2.5k (2560x1090) Dual ISO for longer than 30-40 seconds. I would always get the frame skipped error after that time.

Today, however, I stumbled across a setting that lets me shoot continuously (as long as Im using fast enough cards with spanning turned on):

The bottleneck apparently lies with the histogram setting. Switching it to off apparently removes enough processor overhead or card throughput (or both?) to shoot continuously:


I eventually get a green icon. I dont think I've ever seen that before at this resolution. Especially with dual iso:

Thoughts? Anyone else experience this or is this a "new thing"?

Sidebar: Is 53 degrees Celsius a bad thing?

Here are the rest of my settings:

Dual ISO Processor will traverse all folders within a specified root, find CR2 or DNG image files, and batch process them using cr2hdr.

The application is multi-threaded, and allows as many threads as your number of CPU cores. The user is also free to decrease the number of threads in use, just in case they are using the system for other work. They can increase them back to the max allowed, whenever they please.

This application has everything I love about batch/long process applications: A friendly GUI, log files, Progress bars and Time Remaining/Elapsed counters.

It's open source, so feel free to either suggest improvements or build them yourself!

Source Repository:

Application DOWNLOAD:

Hello all. Im experiencing aliasing and moire on my dual iso videos in areas with fine detail.

I've tried to work around this by using the 3x zoom and 2560x1090 video resolution, but this doesnt seem to help much.

Any ideas?

Example video here:


HDR and Dual ISO Postprocessing / cr2hdr performance issues
« on: June 18, 2015, 10:45:57 PM »
Hello all.

Im experiencing some performance issues with cr2hdr on a specific machine. It runs poorly on the powerful machine (i7-4930K 3.4GHz overclocked to 4.5GHz)  and excellently on less powerful laptop (i7-2720QM 2.2GHz).

Laptop: 798 files take 1544 secs (26 min) or 2 seconds per file

Desktop: 722 files take 12180 secs (132 min) or 17 seconds per file

Is there any reason why this program would run differently on a more powerful system?

Number of cores/virtual cores, etc?

I'd appreciate some help troubleshooting if possible.

Thanks much

Can anyone point me in the right direction as far as communicating with the Magic Lantern sandbox?

I'm writing a Windows application that reports the current magic lantern settings and allows the user to change them via a GUI.

Thanks much.

General Development / Unable to build MLUSB with Ruby Shoes
« on: June 26, 2013, 07:27:48 PM »
Hi all. I'm wondering if anyone else is having trouble building the fils in Contrib\MLUSB

I'm using the latest version of ruby and shoes but get an error:

No such file to load -- usb

Any help would be appreciated

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