Emerald Pools Falls Again

Please view large. This is the more luminous upload of the image I

posted an hour or so ago. I'd be interested in your comments

comparing the two. Also, I would find it real helpful to hear your take on

the differences based on my uploading first by going to Lightroom and

secondly by getting the image out of Adobe Bridge. Many thanks. Larry

The large view is impressive with all of the details. What is even more impressive is the fact that you used f29 as your aperture and i cannot detect the blur of digital diffraction even though it is 'slight'. I actually did an experiment with my D300 and 90mm tamron macro and used different apertures and i could definitely see the blur effect of digital diffraction. Of course my D300 is about 5 plus years old and I know that it is time to 'move up'.

I have a couple of Neutral Density filters which i use to get that slow shutter speed because i am trying to avoid that small aperture setting.

PS: Last night i did some THom Hogan reading on the D7000.

Larry, love the amazing rendition between dynamic and static,  nice warm tone, crisp sharpness and textures, perfect play on lines of the different direction, very well done. Best regards.

Adrienne and Richard, and Tony

Thanks for your comments.  I also like the way this turned out.  I had little if any room to set up my tripod for this one.  I know Tony is right about the digital diffraction, but I don't have a clue what that is or how to see it.  I know that settings of f/22 and smaller are subject to this problem.  As is, I used an ND filter to capture the motion in the falls without over exposing.  I will check out digital diffraction further.  Thanks again.  Larry

It is indeed impressive in terms of detail, resolution and sharpness.

I think the "Digital Defraction" that Tony alludes to is caused by the light coming through a small aperture which then is splayed over the image in a fan shape, rather than the more direct lines of light that would come through a larger aperture. The divergent light rays then passing through a small aperture has to travel different distances to reach the subject and begin to interefere with each other. The interference produces a diffraction pattern which is best viewed as a graph in a tutorial rather than me trying to explain it here. 

The effects of digital defraction can often be seen as a more rounded or furry edged subject, rather than a sharp crisp lines.  But I can't see any evidence of it here.  It gets a whole lot more complicated than that, but thats the short version : - )

I have been experimenting with wide open apertures on the other end of the scale with landscapes, and I quite like the results.

But for long exposures I also use small apertures. I guess the answer is again what Tony alluded to and that is the use of filters.  The filters will allow less light in, but has the advantage that the light that does pass through will do so in a relatively more direct way.

Great Series Larry!

Compliments & Best Regards

Alf

Hi Alf,   I too researched diffraction and understand what you and Tony are saying.  As you say, we cannot see any evidence of diffraction.    In my reading, I recall an explanation that said that it was over about f/40 where the diffraction would be noticeable.  As always,  I appreciate your visit and comments.   Larry

Larry - 

Wonderful water/rockscape.  Love the colors and lighting.  This is one of those photos that could have been sharpened into banality. You didn't do that. It is tack sharp in the foreground, and sharp but soft (if that makes sense) in the background, which really helps create a 3-D effect. The softness of the water and background cliff  is perfect and sets the mood. Well done. You have really motivated me to get to Zion, especially since I have a good friend in UT... no excuses!

Sandra,  It is wonderful to hear from you.  Thanks for your visit. What you describe as softness is what others above described as diffraction.  I agree with you.  I like the soft effect.  If you go to Zion, go in the spring after the leaves come out or in the fall.   Mid summer is likely too hot.  Also, my experience is that if you are not prepared for rigorous hikes in this park, you will miss much.  We were not prepared, nor did we have time, so we settled for the short hike where I captured this image and for views at the bottom of the canyon.  Angels Landing is supposed to offer spectacular views, but is about  nine or ten miles round trip and a vertical climb of about 1500 feet.  It would be tough to drag camera gear and a tripod up there.  All this said, Utah is a wonderland of nature.  Again, thanks Sandra for your visit.   Larry

First of all, I have to say this is one of the reasons I love PN so much. We have so much to learn from each other! This is fantastic, and after seeing another image of Zion that you did in B&W, I started wondering how this would look as a B&W. This seems to have more variations in colors/tones, so I thought it might work. I'll post it below and we'll see how it looks.

The B&W is okay, but I prefer the rich earth tones of your original.  :-)

Hi Christal,  The B&W ia interesting, it's even a bit green  I do also prefer the color one.   Till later.  Larry