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Depth of Field Adapter on Steroids

Started 8 months ago | Discussions thread
ProfHankD
ProfHankD Veteran Member • Posts: 9,147
Wow.
2

Tons o Glass 0 Class wrote:

Thanks Tom; hopefully my explanation is sufficient to now post his video:

https://youtu.be/9cT0jXI7l4E

While I agree that as a mod you're not obligated to watch, I believe you and others here will enjoy it!

That is a beautiful piece of work!

Fresnel lenses usually do rather visible badness to the IQ, so my answer has been to capture HDR sequences and correct the vignetting as they are merged. I actually did the smart merge in-camera using Canon PowerShots programmed via CHDK. However, I was only using a 4x5" screen -- and an ultrawide pinhole: Digital Pinhole Camera Obscura . There was naturally a lot of vignetting and I got a lot of texture from the screen.

It sounds like the material he used wasn't a very good diffuser, but that does help minimize texture and maximize brightness. At the scale he did this, the textures from the screen and Fresnels (BTW, shouldn't he have replaced the plastic with the Fresnels rather than added them?) really are not very visible.

 ProfHankD's gear list:ProfHankD's gear list
Canon PowerShot SX530 Olympus TG-860 Sony a7R II Canon EOS 5D Mark IV Sony a6500 +32 more
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