Gary Clennan Posted September 22, 2013 Share #1 Posted September 22, 2013 Advertisement (gone after registration) Hello all. I'm hoping somebody here can help me out with an issue I am having. I have been trying to combine multiple exposures in HDR Efex Pro 2 without much success. I have shot these pics on tripod and used exact same settings - just using the bracketing function in camera. I typically use a set of 3 or 5 images, 1 stop apart. When I try to combine them in software, the image is totally blurry and unsharp. Apparently this software relies heavily on metadata when combining images. The problem is that my meta data (as shown in LR) shows that I used different f-stops for each image. When combining, I think the software get's confused and the resulting image is terrible. Any thoughts? Is there some software where I can change the f-stop in the metadata? Confused... Link to post Share on other sites More sharing options...
Advertisement Posted September 22, 2013 Posted September 22, 2013 Hi Gary Clennan, Take a look here M240 & HDR Efex Pro 2 Issues. I'm sure you'll find what you were looking for!
AlanJW Posted September 22, 2013 Share #2 Posted September 22, 2013 Gary: I will have a look when I get home Tuesday (traveling now) but if my memory is right I have done some HDR with a M240 and HDREfex2 but have not seen this issue. I will need to go back into my files so give me some time. By the way, the F stop issue is the same with the M9 and I know for sure HDREfex2 works with those files. Link to post Share on other sites More sharing options...
Gary Clennan Posted September 22, 2013 Author Share #3 Posted September 22, 2013 Thanks Alan! I read somewhere that if the EXIF has different f-stop values, they will not combine properly. Any feedback you can provide would be great. Link to post Share on other sites More sharing options...
250swb Posted September 23, 2013 Share #4 Posted September 23, 2013 If you used different f/stops you will have wildly varying planes of focus, so they will come out blurred. HDR is to combine exposure adjustments, + or - the base exposure, best achieved with automatic exposure bracketing via the shutter. To combine images with different points of focus, even if it is only the f/stop, you need focusing stacking software. Steve Link to post Share on other sites More sharing options...
Gary Clennan Posted September 23, 2013 Author Share #5 Posted September 23, 2013 If you used different f/stops you will have wildly varying planes of focus, so they will come out blurred. HDR is to combine exposure adjustments, + or - the base exposure, best achieved with automatic exposure bracketing via the shutter. To combine images with different points of focus, even if it is only the f/stop, you need focusing stacking software. Steve Thanks Steve. To clarify - I did indeed use auto exposure bracketing leaving the f-stop the exact same throughout the sequence. When viewing these images in LR, the f-stop values shown in the EXIF vary. I have heard that this is common on M digital bodies as the f-stop is an approximate value calculated by the camera. This variance (I believe) is what is causing me grief trying to combine them in HDR software. Link to post Share on other sites More sharing options...
250swb Posted September 23, 2013 Share #6 Posted September 23, 2013 Ahh I see, sorry. I think I remember that with Photomatix, and perhaps Photoshop HDR, you can manually give each image an EV number, so overriding the EXIF information, is that possible in HDR Efex? Steve Link to post Share on other sites More sharing options...
ymc226 Posted September 23, 2013 Share #7 Posted September 23, 2013 Advertisement (gone after registration) i've had issues with HDR EFex Pro2 as well. The program will allow EV values to be changed only when it cannot determine them. If the program determines them (correctly or not), the values cannot be changed. I learned this via email from technical support at NIK. Link to post Share on other sites More sharing options...
Dougg Posted September 23, 2013 Share #8 Posted September 23, 2013 Might be a job for ExifChanger? Link to post Share on other sites More sharing options...
wda Posted September 23, 2013 Share #9 Posted September 23, 2013 Not entirely relevant, but I have been experimenting with my M9 and HDR Efex Pro 2 with heartening results. The same applies to sequences shot on my X1 and D-Lux 5. I did not think the software is concerned about actual exposure values. It treats the frames 'as shot'. It would be most misleading to rely on Leica EXIF data because for the M series cameras there is no accurate data for actual f-stops recorded. There is no direct data transfer. Link to post Share on other sites More sharing options...
Gary Clennan Posted September 23, 2013 Author Share #10 Posted September 23, 2013 Thanks for the feedback. The software is only allowing me to combine images with the same f-stop. If I try and combine images which show different f-stops (but are really all the same), it produces a fuzzy, almost grayscale looking image. I will look into this ExifChanger... It's frustrating as I have many bracketed images from the weekend I want to merge to HDR. Edit - perhaps I should try to strip all EXIF data (if possible) prior to import into HDR Efex Pro? Link to post Share on other sites More sharing options...
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