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Messages - R

#26
Same thing happens in my 5D2 since day 1 with ML. It just happens to me in LiveView when I use the joystick to move the focus square. It gets stuck, the focus square keeps moving until the end of the frame and then, after a couple of clicks in the opposite direction or waiting a couple of seconds, works normally again.

It happened with all ML versions I run in the 5D2.
#27
Hi,

In the latest build (2017-06-03 22:09) I've seen that change 4126b56 affects modules/dual_iso/cr2hdr.c and the comment says "temporary patch for module_get_string API".

I really don't understand what that temporary patch does. Can someone here explain if it's an important update?
#28
I found this post searching for information about S6 DNG for a post I wrote this week about shooting in RAW with the Samsung S6.

The post is in Spanish but for those who are still interested in DNG on mobile pones you can find a download list at the bottom.

http://www.ramonclemente.com/blog/post/fotografiar-dng-raw-samsung-galaxy-s6

I'll upload more DNG samples next week.
#29
And in the backlight shots I think they used a medium size reflector pointing the faces.
#30
Quote from: xorpi on September 30, 2016, 06:52:58 PM
Dual ISO with actual performance is not good for any types of hobby or professional photography... This "massive dr improvments" is like "massive miss of the best shots" I want the best performance as possible from my gear (EOS 700D) and with Dual-ISO is like lottery for few geeks. Not for hobby enthusiastic photographers or... professionals.

I have sold thousands of Dual ISO photos. I'd recommend you to experiment a lot, compare results, refine your exposure calculations, use zone system for metering areas, anticipate where your shadows will fall after running cr2hdr, and start again until you find your method. Once you know where to measure and in which zone the opposite side of the histogram will fall you'll be able to predict results.

Check my portfolio www.ramonclemente.com/portfolio, most of the photos are Dual ISO.
#31
General Help Q&A / Re: DATA folder
September 08, 2016, 01:19:43 PM
Quote from: Walter Schulz on September 08, 2016, 12:53:09 PM
Let's answer it this way: Why do you want to do that?

I know, I know. It's absurd to try to save a few Mbs when you use an 8Gb card. Let's say that I'm obsessed with file size and I thought to reduce my ML folder in 1,3Mb.
#32
General Help Q&A / Re: DATA folder
September 08, 2016, 12:50:30 PM
Does somebody know if it's save to remove those lut files from my CFcard if I'm not using the defishing function?
#33
General Help Q&A / Re: dual iso with flash photo mode
August 27, 2016, 07:30:38 PM
Quote from: Danne on August 27, 2016, 05:00:59 PM
Those are nice looking examples. Are you exposing for highlights in dualiso? Flash exposure on the high iso setting for instance 1600 in an 100-1600 example?

Danne, look my last reply to visiono: http://magiclantern.fm/forum/index.php?topic=17705.msg171333#msg171333.

Using base ISO for calculations, I keep highlights around zone IX (90%) if I want to keep just HL colors. If shutter speed allows it I put HL under zone IX if I want to bring back its textures. Then, using the exposure meter I check my midtones. Multiplying exposure meter x DISO factor I know in which zone midtones are going to fall.

Usually I use 200/1600 DISO, that's three extra stops but I never push the exposure 3 stops in postpo. I usually add about 2 stops; strobes help midtones to fall around zone VI. Keeping in postpo the exposure push below the DISO factor helps avoiding ugly noise in shadows and the appearance of that  pattern that cr2hdr creates due to the different odd/even rows ISO.

There's more noise in DISO shots than in normal shots so it's a good idea to push the NR more than what you do in normal shots. In my 5DmkII I keep luminance NR between 10-20 and chroma between 20-30. Above that textures get washed for my taste. But my clients use my images for web so, displaying a 20Mpx photo at let's say a maximum of 1440px wide creates the false illusion of almost no noise at all.

I use 100/1600 DISO for extreme DR scenes. But keeping in mind that the more you push DISO the more noise, fringing and pattern you get, I then shot a normal bracketing in case I need to compose an HDR in Photoshop.
#34
General Help Q&A / Re: dual iso with flash photo mode
August 27, 2016, 04:24:15 PM
Quote from: visiono on August 27, 2016, 07:37:25 AM
So there is no special trick then? If you are using radio triggers its just like any other flash photo?
Ramon, I don`t see why you don`t just shoot bracketted exposures and keep everything at 100 iso, then blend in post. some of your outdoor exposures could still be brought down a bit. just use a tripod.

No special trick visiono.

I just treat continuous light as if I were working with the low DISO and flash with the high DISO. I keep the brightest exterior area I want to have reasonable color accuracy around zone IX and below that if I also want to retain a bit of texture.

My starting point is 200/1600. If exterior exposure needs faster shutter speed than 1/160 then I go for 100/800. If the interior needs more light, as I keep my flashes relatively low (1/16), to avoid casting noticeable shadows in opposite direction of natural light, I try 100/1600.

(BTW, I always use tripod and I don't know what made you think I don't use it.)

I have several reasons why I rather use DISO for most of my shootings than bracketing, many of them related with productivity.

- One take for scene is better than three or four takes.
- Less files equals faster imports.
- In Lr there's no HDR batch processing. Let's say I need to process 20 HDR scenes for job and group them. With the bracketing method I would have to repeat 20 times x (select images -> ctrl+h -> select deghosting level -> click ok -> select images -> ctrl+g). But using DISO I just need to do once ctrl+a -> export cr2hdr. That's all.
- Lr HDR deghosting is waayyyy to sensitive and unpredictable. Using it ends up with weird deghostings in the exterior areas seen through windows. DISO solves that; one picture no ghosting.


I definitely would give ML DISO a try for portraits. I would start with a 400/100 setting if you want sky recovery and 800/100 for dramatic effects. I'd make sure that my main subject falls between zone V-VI to avoid the inherent resolution loss of DISO in HL and SH.

Post some images if you finally try it.
#35
General Help Q&A / Re: dual iso with flash photo mode
August 19, 2016, 10:42:42 AM
For me, as archt/int photographer, is the fastest way to capture backlit rooms getting data enough to edit the image comfortably and quality enough to be able to sell the picture. The room is illuminated by one or more flashes while the exterior seen through the windows is controlled by the lowest ISO.

In most scenes I find 200/1600 and 100/1600 the best settings. If there's a window or a door those photos are most likely to be shot using DISO+flash.

Check this ramonclemente.com/portfolio/casas/ or this ramonclemente.com/portfolio/apartamentos/
#36
General Help Q&A / Re: dual iso with flash photo mode
August 15, 2016, 02:49:11 PM
I've been shooting DISO and flash for a while and I like the results.
#37
Quote from: DeafEyeJedi on February 17, 2016, 11:31:49 PM
Yes, and Yes.

Thanks DeafEyeJedi

I'll keep on trying to improve the way I balance flash and natural light to move some shadow areas into the midtones and reduce noise.
#38
Hi guys,

I'm new here although it seems to me that I know you all because I've been reading hundreds of pages before posting this questions. But the fact is that I haven't found the answers.

Would some of you answer three doubts I have?

Does the 3.0 beta3 have the latest cr2hdr version?

If not, where's the best place to download last version of the 20bit cr2hdr?

And, can I just replace the exe found in cr2hdr.lrplugin\bin when a new version of cr2hdr is released?

I'm a real estate and interior photographer and my workflow usually includes ISO bracketing, so I was more than happy when I discovered Dual-ISO. Having both ISOs in one shot guarantees a 100% image consistency but when I check my processed Dual-ISO images at 100% crop I can see unusual color noise. I'm still fighting with soft-film and wb parameters. I'm still learning cr2hdr but want to make sure the issue color is either a problem of my workflow or something already solved in rcent versions of cr2hdr.

Thanks