Activity for User 1523 - Keith Au - keithkau@gmail.com

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108 Comments / 144 Replies Posted

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Group Round C/R Comment Date Image
95 Sep 23 Reply My recollection (from my last use of the function) was that I can see all the number of images I specified and then load them into PS, where I can eliminate any one image(s) if desired - prior to the PS merging. Sep 26th
95 Sep 23 Reply Ah.. I see.. I think I had an old extension tube (before I bought my macro lens). I gave up using it when I heard people saying that they could provide very sharp focus.. Maybe I should dig it out and try on different lenses and see whether it works for me.. Thanks for the info. Appreciate it. Sep 11th
95 Sep 23 Reply Good point, Stuart.. Will keep that in mind.
I think, if using the in-camera focus bracketing, we could also screen out those shifted ones during post-processing, hopefully that helps minimize their impact to the outcome.
Sep 11th
95 Sep 23 Comment Hi Carol, good idea to add vignetting to get the central part more stand-out.. Just wondering whether wider vignetting or cropping-in more to the middle could help getting quicker focus from audience? Personally I found that the surrounding red petal and background a bit distracting when I first looked at the image. I understand the focus area should be the white centre of the flower, which is nice and sharp. Sep 9th
95 Sep 23 Comment Hi Gloria, good first attempt on focus bracketing.. It will be nice to compare the outcome with focus rail. But the in-camera focus bracketing is so handy.. I found that it's not easy to achieve constant focus steps with my focus rail's manual knob. Sep 9th
95 Sep 23 Comment Nice picture with pleasing colour combination. As an audience, I immediately realized that the picture's focus is the fly. I am okay with the bit blurred head.. I always thought extension tubes (or adapters) could not produce very sharp close-up images.. This changes my perception.
Sep 9th
95 Sep 23 Comment Hey Tom, I like your creativity of photographing your own finger.. Impressive sharp picture even by handholding your phone with macro attachment... Like the clear in-focus texture.
Yep, the dark edge could be resulted from over-contrasting the selected area. I usually select more feathering while selecting the area for sharpening to avoid such side-effect.
Sep 9th
95 Sep 23 Reply My apologies.. On Nikon D850, they use the term 'focus shifting photography' instead of 'focus bracketing'. In fact, I have tried that function before and worked well.

What I need to do is to think / plan ahead how to shoot an object's image in order to achieve the result I look for.
Sep 9th
95 Sep 23 Reply Thanks, Stuart and Carol. Great inputs.
Yes. I went back and checked the original image's focus point (single point focus). It actually was on the body (the belly) of the frog. As Carol said, the f/6.3 does not allow sufficient DOF to show a sharp right eye; but it is close to the same plane as those bugs. So some of the bugs look sharp.
I don't think I see 'focus bracketing' function on my D850.
So I think only a bigger DOF or focus stacking could improve
this picture's presentation. I was too excited finding those small bugs.. However, once I zoomed in to the head, the eye's out-of-focus issue really stands out.
A good lesson to my experience in choosing what to show the audience.

Sep 9th

4 comments - 5 replies for Group 95


4 comments - 5 replies Total


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