Posts: 40
Threads: 7
Joined: Feb 2014
Hi Gunther,
I 've purchased the LRT4 Pro version this morning with great hopes to improve my night sky timelapses. This was a cross grade for me from LRT3 Private License. I have been extremely happy with LRT3 since my purchase a little over a year ago.
As soon as I installed the new version, I re-rendered a recent sequence I made . Unfortunately, the MB, in this version, is giving different results than the previous version and adds tails to the stars and blurs the Milkyway which is not desired at all. As a deepsky astroimager, I sacrificed a lot (like using ISO3200 and short exposures) to get tight and pin point stars. LRT3 rendered the images as I expected with almost round and tight stars.
Although the online compression is not doing justice to what LRT produces, I believe you can still see the difference between the 2 versions. Same intermediate jpeg files were used as well as exact same settings in the LRT video render module in the below 2 videos.
LRT3 - Motion blur + Sharpen --> https://vimeo.com/128800017
LRT4 - Motion blur + Sharpen --> https://vimeo.com/129016615
LRT3 has pinpoint stars and a cleaner look on the sky. LRT4 version is much better on non-moving parts and colors are more saturated.
Meanwhile, I reprocessed the raw files and exported as 8bit Tiff files with the hope of getting a better quality. Again, with the same video render settings the stars are even more elongated...if I use medium or high motion blur, all the stars become comets
LRT4 - Motion blur + Sharpen (8bit tiff files) --> https://vimeo.com/129018913
And here is a comparo showing all 3 together...top window is LRT4 - 8bit TIFF, the next is LRT4 - Jpeg and the bottom is LRT3 - Jpeg.
Comparo --> https://vimeo.com/129024681
Therefore, for this specific area, I would rather use LRT3 as it was doing a much better job from my perspective. Would it be possible for me to keep both versions running on the same computer ?
Or, maybe, I'm doing something wrong and you can help me in some other way ?
Thanks
Sedat
I 've purchased the LRT4 Pro version this morning with great hopes to improve my night sky timelapses. This was a cross grade for me from LRT3 Private License. I have been extremely happy with LRT3 since my purchase a little over a year ago.
As soon as I installed the new version, I re-rendered a recent sequence I made . Unfortunately, the MB, in this version, is giving different results than the previous version and adds tails to the stars and blurs the Milkyway which is not desired at all. As a deepsky astroimager, I sacrificed a lot (like using ISO3200 and short exposures) to get tight and pin point stars. LRT3 rendered the images as I expected with almost round and tight stars.
Although the online compression is not doing justice to what LRT produces, I believe you can still see the difference between the 2 versions. Same intermediate jpeg files were used as well as exact same settings in the LRT video render module in the below 2 videos.
LRT3 - Motion blur + Sharpen --> https://vimeo.com/128800017
LRT4 - Motion blur + Sharpen --> https://vimeo.com/129016615
LRT3 has pinpoint stars and a cleaner look on the sky. LRT4 version is much better on non-moving parts and colors are more saturated.
Meanwhile, I reprocessed the raw files and exported as 8bit Tiff files with the hope of getting a better quality. Again, with the same video render settings the stars are even more elongated...if I use medium or high motion blur, all the stars become comets
LRT4 - Motion blur + Sharpen (8bit tiff files) --> https://vimeo.com/129018913
And here is a comparo showing all 3 together...top window is LRT4 - 8bit TIFF, the next is LRT4 - Jpeg and the bottom is LRT3 - Jpeg.
Comparo --> https://vimeo.com/129024681
Therefore, for this specific area, I would rather use LRT3 as it was doing a much better job from my perspective. Would it be possible for me to keep both versions running on the same computer ?
Or, maybe, I'm doing something wrong and you can help me in some other way ?
Thanks
Sedat
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