I think the fact that you took several rather short exposures at a very low ambient temperature aided in the "low" noise of your image. Low temp on the sensor will give you better SNR. Generally stacking many of the same shots will add noise unless they have had dark frames subtracted and or NR program. If there is a slight camera movement on the subject between the exposures will also help offset noise. Then the images can be stacked so they are back in alignment with each other so to speak.
Klaus Priebe wrote:
Floris,
Excellent image. Very cool.
I think the fact that you took several rather short exposures at a very low ambient temperature aided in the "low" noise of your image. Low temp on the sensor will give you better SNR. Generally stacking many of the same shots will add noise unless they have had dark frames subtracted and or NR program. If there is a slight camera movement on the subject between the exposures will also help offset noise. Then the images can be stacked so they are back in alignment with each other so to speak.
The low temp may have helped, but I took lots of other images, the compilation is much better in terms of noise than the single exposures. They are each unique exposures, since noise is random, if you have enough exposures, it should average out and get reduced, no? If you have the exact same image and stack it, you will certainly increase noise, but unique exposures will reduce the effect. I have other 4 min exposures that have more grain, but not the 'long exposure grain/snow' I see in a 20 min exposure. Just normal processing grain. This isn't in the length of time that dark frames will make any impact.
ajkessler wrote:
Awesome! But...I want to see!! If you don't mind could you post a little 100% crop from the shadow area in the bottom left or of any part in the middle or something? This sounds so cool that I want to try it! I've never seen a real satin smooth shadow area before so this is really exciting.
Ok.. since you really want it
Do note that it was a bit windy, and I haven't completely finished prepping it for say a print, so it's not quite as crispy as I hope to get it (or that it could've been without any wind), but you get the idea. Here's one from the shadow and one from the sky. Remember there's no noise reduction applied to this image.
Do note that it was a bit windy, and I haven't completely finished prepping it for say a print, so it's not quite as crispy as I hope to get it (or that it could've been without any wind), but you get the idea. Here's one from the shadow and one from the sky. Remember there's no noise reduction applied to this image.
Uhmm.... wowww. Awesome stuff Floris. Just think, two or three more generations and camera's should be this good themselves. This must print amazingly. Congrats
very intense colors with some great light. a bit over saturated for my tastes, but spectacular nonetheless. thanks for sharing your workflow. this is something i'm going to have to try myself.
I want to say the image is a bit "too" colorful, but that would be a lie. I was never a big fan of super-saturated photos, but that's because people just push the saturation bar way high, losing a lot of detail, but THIS!
Absolutely beautiful. An inspiredl composition of a fantastic place in rare and beautiful light, with ideal processing. It just doesn't get better than that.
This image under these conditions deserves the rich treatment that comes from your great idea. It is a signature image of the southwest. In my opinion it could not be better.
I have been to this area a couple of times, and hope to spend nearly a week there this spring. How long did it take to scout this great perspective?
Mighty impressive. I just can' say enough about it.
Absolutely beautiful. An inspiredl composition of a fantastic place in rare and beautiful light, with ideal processing. It just doesn't get better than that.
This image under these conditions deserves the rich treatment that comes from your great idea. It is a signature image of the southwest. In my opinion it could not be better.
I have been to this area a couple of times, and hope to spend nearly a week there this spring. How long did it take to scout this great perspective?
Mighty impressive. I just can' say enough about it.
Congratulations,
Bart
Thanks! I was there for four days, it's pretty easy to find your way around, but loads of places to explore - I'm sure you'll have a blast! Trick is to be there before sunup, once the sun is shining the reds in that sandstone just can't be captured very well, it's just too bright.
Jan 15, 2008 at 11:20 AM
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