This is historic Price Memorial on the campus of UNG. I planned this shot out way ahead of time, but it didn't quite work out the way I had hoped. First, the 20-stop ND filter was a bit too much (!). Should've went with a 16.5x I saw offered. I knew that between reciprocity and the light not being consistent as the eclipse happened it would be close, but I figured I had enough leeway to make it work. Well it's way underexposed.
Also, the 3D printed Mercury camera I think had a bit too much slop on the helical focus and light was able to sneak in around the edges, fogging the corners (this is cropped from a horizontal image, it's much worse than presented). I've never had issues before, but neither have I shot a 3+ hour exposure in broad daylight.
Overall, it's identifiable but could've been better. Hopefully, I may get another chance at something similar one day, or better yet I could learn from this and try again just with the sun (not an eclipse). I think the concept is still interesting.
Mercury 4x5 with 47mm XL at f/16, 20x ND, exposed for over 3 hours on T-Max 400:
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