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8 comments

1
Great White Snark  May 31, 2016 • 6:31:06am

Beautiful symmetry. I really love the last two, especially silhouette. I wonder if the sharpness hits file size upscale. 1mb, 5mb etc. How many aperture blades are on that lens? 100mm so 180 on the Rebel?

2
CuriousLurker  May 31, 2016 • 7:21:02am

re: #1 Great White Snark

Thanks for the kind words. I knew you’d like the silhouette. I’m sure I could’ve tweaked it more in LR it to make it better if I knew more about b&w photography.

Eight blades. AFAIK, all Canon APS-C sensors are 1.6x crop factor, so 100mm is 160.

3
CuriousLurker  May 31, 2016 • 7:37:50am

re: #1 Great White Snark

I wonder if the sharpness hits file size upscale.

It certainly seems that way. More sharpness means more variation/image data, so it follows that the file size would be bigger. You don’t really notice the difference when you’re looking at huge RAW files, but it jumps right out at you when creating smaller JPGs.

4
Great White Snark  May 31, 2016 • 8:56:13am

re: #3 CuriousLurker

I may have mentioned this but lens techs tell me the sharpest any lens can possibly be is wide open and at minimum distance. And coatings matter. And we rarely want softish in macro right? What I inferred from that is when the depth is too shallow for the shot you want, stack rather than narrow the aperture. And Lightroom has made that easier than it was. I have not yet take macro that far, I have this pesky inclination to stay in camera.

5
Great White Snark  May 31, 2016 • 9:13:33am

Did you run the chromatic aberration filter in the lens distortion feature in Lightroom? It only show a little in 100% size or 1:1

6
CuriousLurker  May 31, 2016 • 10:39:06am

re: #4 Great White Snark

I’ll keep the stacking in mind. I thought of it as I was taking the photos, but something like that is better planned for then done on a whim, methinks. Maybe I’ll make that my next test.

re: #5 Great White Snark

Did you run the chromatic aberration filter in the lens distortion feature in Lightroom? It only show a little in 100% size or 1:1

Nope, just the lens correction profile, which I left it on the default settings. I have no idea if the correction does anything WRT chromatic aberration. I’ve only barely scratched the surface of LR—I have a LOT to learn there still.

7
Great White Snark  May 31, 2016 • 12:52:54pm

re: #6 CuriousLurker

In that same dialog box for lens distortion is a tab for correcting for the coatings and aberration. I’ll send ya a screen shot laterz

8
wrenchwench  Jun 2, 2016 • 12:35:19pm

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