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 Mar 23 Reply Nice efforts.. I can in fact feel it when I look at the image. Mar 23rd
95 Mar 23 Reply Got it. Thanks, Stuart. Mar 23rd
95 Mar 23 Reply Hi Stuart, you hit the nail in the head.. The Nikon focus stacking function (on D850) is about the same as your Olympus. The step length and the number of shots are all guess work, although the user manual has some suggestions (sounds practical). The outcome of my best try-out setting (after a few test runs) still has a few out-of-focus shots where the shift goes off the subject onto the background. I now have a bit more confidence in setting the stacking parameters. Anyway, PS merging does recognize the off-focus shots and dump them anyway. The outcome looks reasonable.

Btw, Does Helicon Remote support Nikon?
Mar 22nd
95 Mar 23 Comment I like the diagonal layout and the natural backlight. It's perfectly sharp on all parts of the cabbage.. Thought you might need more than 20 images as the subject is perpendicular to the camera. Good job! Thanks for sharing. Mar 19th
95 Mar 23 Reply Hi Stuart, Congrats for being chosen in the showcase. It's a stunningly clear and pleasingly sharp image. I love the perfect blue background making the plant more stand-out. Mar 19th
95 Mar 23 Comment Agreed that the subject is sharp enough without focus stacking. I noticed the edges are very sharp against the dark background.. Love it. Mar 19th
95 Mar 23 Comment Nice capture! The blurring effect makes a more artistic presentation with a blank background. Yep.. most importantly the head is sharp. I noticed that, since you did a handheld shot, you were able to line up with lower angle to the mantis which is a lot more pleasing to the audience. Mar 19th
95 Mar 23 Reply Thank you, Carol and Tom.
Yes, my camera was mounted at an angle, looking down onto the subject. That's what I got puzzled how (where) I should line up the starting focus point for the in-camera focus stacking to work properly. I put the focal point at the top rim (edge) of the flower pot. Guess the auto focus stacking function would go over the whole subject anyways..? Please advise if this is not a good approach.. I will be try using the focus rail instead.
As to the yellow background, I did not adjust the colour during my post-processing. I guess the problem is.. my two light sources are 1 LED and 1 florescent.. it may have fooled the camera's auto-white balance function? I should have adjusted the colour with hue or filtering with ACR. As you brought it up, the yellow cardboard paper (background) do look 'un-natural'. It's my oversight as I only focused on checking the focus points over the subject.

Thank you both for your assessment.
Mar 19th

3 comments - 5 replies for Group 95


3 comments - 5 replies Total


30 Images Posted

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Group 95

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