Zip Martini

24 Followers
40 Following
243 Posts
Boston MA USA. ~50. Photos, comics, other stuff.
CityBoston, MA, USA
PixelFed@[email protected]
Homepagehttps://zipmartini.photography
Threadshttps://threads.net/@zipmartini
That's gonna be a "no" from me, dawg.

Here's the new Google Cardboard image with the template scaled up to match the raw output from the Spectacles underneath. It's gone from a 1.2Mpx screenshot on the iPhone 11 to a 10.3Mpx image in the template: an upgrade that's almost exponential.

It still drives me crazy that the two cameras are not color-corrected to match each other, and that there's no exposure correction to keep from blowing out an 8:00am sky.

But this is a good start.

#stereophotography

More experiments with the Spectacles V3. The first image is Snapchat's output for Google Cardboard on an iPhone11 (still not working on Android). The full image is 750px highβ€”not even reaching the threshold of "high resolution"β€”and the circles themselves are 500px each. The second image is the raw output, obtained from a data request to Snapchat. I think I can piece together a better version of the 1st from the 2nd, depending on any lens distortion the Snapchat app is adding.

#stereophotography

A stereoscopic comparison, uncropped:
➊ Pentax Asahi stereo adapter attached to the NIKKOR Z DX Silver kit lens (35γŽœπ‘“/5.6)
βž‹ Loreo 3D Lens-in-a-Cap 9005 (at the minimum 𝑓/11) socketed into the Nikon FTX adapter
➌ Snapchat Spectacles V3

#stereophotography

This was just me testing the new Share on Mastodon button in Feedly.
Here's my Nikon Z fc with the new Pentax Asahi stereo adapter "attached" to the NIKKOR Z DX 16-50㎜ 𝑓/3.5-6.3 VR Silver kit lens. "Attached" is in quotes because while the adapter claims to be 49βŒ€, it's really more 47βŒ€, so I had to run a couple of layers of masking tape along the inside of the ring to make it fit the barrel of this 46βŒ€ lens. 35㎜ definitely appears to be the sweet spot as far as focal length, and the adapter is apparently designed for an aperture of 𝑓/5.6-𝑓/8.
#stereophotography
More experiments with Snapchat #Spectacles 3: this is a photo of a color card, right out of the "camera" with no adjustments. The two stereo cameras are absolutely calibrated differently: the white balance of the left image is a bit too cold, the tint is way too green, and the levels are somewhat darker.

More #Spectacles experiments:
β€’ It turns out that the user data request from Snapchat (link below) works only twice per day.
β€’ There's just no way to control the exposure. Some skies are blown-out white.
β€’ I wish there was a way to introduce a level indicator and focal point; clicking the button tends to tilt the glasses.
β€’ I'm puttering away on a template for publishing out to Google Cardboard as well as stereo cards (which need fisheye correction).

https://accounts.snapchat.com/accounts/downloadmydata

Log In β€’ Snapchat

X-posted to PixelFed
Fun experiment of the day: I used the Lambdal Text-to-Pokemon generator with "Zip Martini" as the prompt to get the first image here. I then re-created the creature in 3D in Blender. The second image is using Blender's Freestyle settings to generate black outlines. The 3D object is available for viewing on Sketchfab here:
https://skfb.ly/oBpZF
#TextToPokemon #Blender #Freestyle
PokeZip - 3D model by Zip Martini (@zipmartini)

I prompted the Lambdal Text-to-Pokemon generator with β€œZip Martini,” and this creature was the result: - PokeZip - 3D model by Zip Martini (@zipmartini)

Sketchfab
Well, the only way I was able to get workable images from my Spectacles V3 was by bypassing the app export entirely and requesting a data download from Snap. A couple of initial impressions:
β€’ Stereo images are stored top/bottom
β€’ The EXIF data describes the actual cameras as a pair of Ambarella H2's.
β€’ The raw fisheye images are 6Mpx resolution, which is much better than I was expecting.
Sample image attached.