Horseshoe Bend No. 1 - a photo on Flickriver

90-photo multi-row HDR panorama. 31,200 x 16,300. (508.5 megapixels.)

Was hoping to catch sunset but it ended up being total overcast. Overcast isn't terrible though, it gave me an even lighting situation to work with.

Max zoom version.

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Oh lord. This was quite a chore to process. Lightroom has a maximum filesize of 512 megapixels. I learned this fact tonight because it wouldn't stitch any of my panos from Horseshoe Bend. No, it didn't tell me why. When this scene was merged, the photo was larger than 512 megapixels. You would think that LR would say this, but instead it just says that I need to choose another projection method.

Another problem is that the extreme depth of Horseshoe bend causes further issues with LR's projection modes. I guess that even if it had been under 512 megapixels, it still wouldn't have worked.

Alas, I had to fork over $300 for PTGui.

PTGui is able to import my raw CR3 files and can even merge HDR, but it doesn't really have any good features to adjust images or set a camera color profile, so my first attempt came out looking bland.

So I started over for the 15th time. I went into LR and individually merged each of the thirty HDR images manually. I processed a few to see which settings would work the best, then set all images to have an identical treatment (color balance, exposure, contrast, highlight, etc.)

Exported these thirty completed images as TIFFs, stitched with PTGui (equirectangular projection), and exported a massive 980 megapixel photo (half of which was empty space). I couldn't import that it LR because it was over the 512mp maximum, which is how I learned about the maximum. If I had been holding a stack of papers, I would have tossed them into the air at this point.

So, I opened it in Photoshop and cropped it down to what I needed. Every slice of the crop tool hurt. I finally managed to crop it down to a reasonable size without losing any key detail or breaking composition. Saved the changes.

At this point, I noticed that PTGui lost all of my exif data. So I used my exiftool to copy the exif data from one of the original files and overwrite the settings on the pano TIFF. (Yes, really - this story is still going.)

Finally successfully imported into Lightroom. From here, I edited it with DeNoise AI to bring out some incredible sharpness. Denoise has the MOST INCREDIBLE sharpening I have ever seen. It gets in there, even on these massive panos, and sharpens the tiniest details. It makes them look wonderful at Max Zoom.

Back into Lightroom with the sharper image. I did my tone curve adjustments and a slight clarity adjustment and then it was time to get it uploaded.

THANK YOU FOR LOOKING AT THIS. I HOPE IT WAS WORTH IT.

My gear
Canon EOS R5
Canon EF50mm f/1.2L USM lens (w/ hood)
Hoya UV filter (sometimes I use a polarizer)
iFOOTAGE TC7 Carbon Fiber Tripod w/ Quick Fastbowl
Acratech Multi-row panoramic head
Acratech Nodal Rail
Acratech L-bracket
EOS R/R5 compatible mounting plate
Remote trigger

Software
PTGui Pro
Adobe Lightroom Classic CC
Adobe Photoshop CC
Topaz DeNoise AI
Color Fidelity Color Profiles for Canon EOS R5

Some of these links are referral links; buying from them will send me a couple bucks. Thanks for your support.

Taken in: United States / Arizona / Page (show map)

Taken on: February 9, 2021

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United States

Sets appears in: • The Classic JW Panorama • Vegas-to-Zion Road Trip 2021 more » • Panoramic Nature « less

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Camera: Canon EOS R5, f/11.0, 1/13 sec, 50mm, ISO 100 (more info) (hide info)

Camera:	Canon EOS R5
Lens:	EF50mm f/1.2L USM
Aperture:	f/11.0
Exposure Time:	0.077 sec (1/13)
Focal Length:	50mm
ISO:	100
Exposure Bias:	0 EV
Flash:	No Flash
Exposure Program:	Manual
Exposure Mode:	Manual
Metering Mode:	Center-weighted average
White Balance:	Auto
Saturation:	High
Color Space:	sRGB
Software:	Adobe Photoshop Lightroom Classic 10.1.1 (Windows)
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