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joeborg wrote:
Martin, understood :-). Essentially it's equivalent to either full manual (I take it your camera doesn't allow this?) or else holding down the exposure lock between different sets of exposures (i.e. so they all have the same shutter speed and aperture). I've never tried this before for bracketing; I've always used aperture priority (read: I've not noticed what the disadvantage may be of having different shutter speeds between sets of exposures?). I'll see what my camera does in full manual mode and AEB set if you say it produces better results.
2Joe
Correct - I have found using 5 exposures (+/- 4/3) gives some improvement over 3 (+/- 2) and using a fixed aperture AND shutter speed helps remove some of the banding/blending issues at the overlaps when rendering
Don't take my word for it though - I'm still a novice at this and will continue to experiment with camera and APG settings (not forgetting Photomatix also has a lot of options and output formats as well)
Last edited by marzipano (2012-11-13 21:57:26)
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Thanks Destiny/Martin,
I'll try a couple of experiments to see if using 5 exposures gives a better result (though two will be 'fake' in my case; obtained by adjusting exposure in software prior to using photomatix). I'll also try full manual to see if the results are better when stitching.
Destiny, regarding the halo effect, I'm with you there - I don't like it myself and, on some occasions, have tried to deal with it in post. Lately though, I've been using the 'lighting mode' settings in photomatix and realised that, depending on the mode set, the halo effect is either reduced or it disappears altogether. Thought I'd let you know in case you wanted to try that.
Joe
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I've posted a feature request here: http://www.kolor.com/forum/viewtopic.ph … 00#p107400
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joeborg wrote:
My understanding is that it's not the amount of pics that makes up the dynamic range but rather, the range of EV you cover with the pics you have.
Basically that´s correct - but it tells only half the truth 
I´m doing that for years now - and realized that many small steps of 1EV provide smoother, cleaner results than fewer steps using 2EV. The reason is that extreme highlights and deep shadows
might come washed out or too deep when you use 2EV steps - and then the information is gone and you have much noise in the shadows.
Usually 3 exposures @ 2EV are fine, definitely 5 or 7 exp. @1EV are better. But sometimes it needs 12 or more for a dramatically smooth appearance.
I often use 12 steps for making spheres and backplates for compositings rendered in Maxwell - here you have then an extremely wide range of options for mirroring and IBL
on cars and so on. Applications like "HDR-Light Studio" http://www.hdrlightstudio.com/blog/pres … 4-is-here/ provides phantastic features working with .hdr/.exr files.
Another gem : http://www.hdrlightstudio.com/blog/cate … ll-studio/
best, Klaus
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Hi Joe...
I am almost there with the setting on my VR Drive II, I have the HDR software on it and now I am just waiting to find some time and the right moment to capture some nice outdoor HDR images... I set it with 15 bracketed shots, -/+ 1EV and another setting at -/+ 1.5 EV and the third test at -/+ 2EV... If I go too high, the high and lower exposures will be lost, way too dark and way too light, which the -/+ at 2EV will probably do that with 15 shots.. I could do a mix match of EV's with the software but I will keep it simple for now.. Having extreme - EV tends to create too much noise grainy shadows.. and the too high + EV kills the image altogether..
Just 30 mins away from me is a town named Glamorgan Vale, Queensland, a beautiful mountain area... I want to try there...
Destiny..
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klausesser wrote:
joeborg wrote:
Yes, I'm with you on Autopano's HDR features - it's its achilles heal IMHO.
Yes - definitely. APG doesn´t do (!)HDR(!) at all. It does fusion.
But that´s not a real problem i mean as long as you get precisely matching layers for mapping afterwards or using the .hdr resp. .exr data otherwise.
best, Klaus
Working on panoramas that were shot in 7-11 exposures.
I understand that from APG I can generate the layers.
- This will be 7 to 11 layers then, right?
- And they match exactly? And if I then load them into photoshop I can bring them together to form a HDR?
if so, no problem APG is not that good in HDR... ;-)
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