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Omnimax

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Re: Omnimax

#41
post #40

Great article! Thanks for sharing your research into the history of these super interesting theaters and projection systems. There is something I've wondered about though: > While far from inexpensive, digital projection systems are now able to match the quality of Omnimax projection. Are they really? The St Louis Science Center Omnimax was switched from the 70mm film system to "laser 4k" digital projection in 2019.…

This is definitely an area for debate. I've seen the physical resolution of a 70/15 film frame estimated at 70MP, which is obviously a lot more than the ~8MP of 4k. The MP comparisons between film and digital are a little iffy though, and digital ought to be sharper within the limitations of that resolution than film. Ultimately it comes down to marketing but, having not had a direct comparison, I would still expect 70mm to look better than a digital projection system.

I think that digital LED domes might beat film because of the excellent light output and color reproduction, but I guess I'll have to shell out for the Sphere to find out as there are very few of that size.

Re: Omnimax

#42

> Fortuitously, almost simultaneously the Multiscreen Corporation was .. > IMAX made an obvious basis for a high-resolution projection system, and so the then-named IMAX Corporation was added ... I got confused about the name of the company and even Wikipedia seems to be very inconsistent about it [1]. What exactly was it called in 1960s and 70s, "Multiscreen Corporation" or "IMAX Corporation"? [1] https://en.wikiped…

I agree that the article text could be clearer. As I understand it, it was originally incorporated as Multiscreen Corporation (probably to work on some kind of multi-projector format which were in vogue at the time) and then renamed to IMAX Corporation after the success of the IMAX system at the 1970 Expo.

Re: Omnimax

#43
I grew up going to the Omnimax theatre at the Ontario Science Centre; that image of the giant projector going up the angled elevator is a very familiar sight. I loved the little short films they showed there, but it's obvious it was an incredibly bulky and obtuse format that was unlikely to be of much competition against digital alternatives.

Sadly the OSC as a whole is now being demolished after years of under-investment and mismanagement, and the Cinesphere (IMAX) at Ontario Place is likewise in dire straits.

Re: Omnimax

#44

I grew up outside of Boston and as a kid we went to the Museum of Science's Omnimax dome quite a few times. As I grew up, I started seeing/hearing about IMAX movies, and didn't realize they were different until I went to one in another part of the country. I was very excited to go, as it had been a long time since I had been to an Omnimax. I was pretty confused and disappointed, which is a weird reaction to have the…

"I grew up just a few blocks from here." "Who put the bomp in the bomp sha bomp!" I too had a similar reaction the first time I saw an imax.

"These people wanna see a lobstah!"

Re: Omnimax

#45

I miss the Omnimax they had at the Franklin Institute in Philadelphia. They closed it during the pandemic and it never reopened.

I sort of wonder how many of them had this exact fate - the Ft Worth Texas one was in the exact same situation. My understanding is that both parts to maintain the projection system and people with the knowledge to operate it were getting very rare, and the people largely retired when the pandemic closed the theater. Since a lot of the Omnimax screens were build during a similar range of time and would have had similar challenges, I wonder if that fate was common.

(luckily, the Ft Worth theater specifically was converted to an LED screen and recently reopened)

Re: Omnimax

#46
post #30

The Omnimax theatre at the Cincinnati Museum Center at Union Terminal is worth the trip if you're in the area. They still show the "wormhole" and show off the speaker stacks outside the dome during the pre-show.

Wow, I thought for sure they would have retired it by now. I remember having a birthday party there when I was a kid (90 or 91?) and thinking that it was the coolest thing ever. It made up for them not moving the planetarium from their old location when they moved the museum to Union Terminal, which I (at 9) recall making me really sad.

It has had a digital retrofit (no more giant reels of film paying-out into the projector to watch while in line for the next show) but is otherwise pretty much unchanged.

We took a "behind the scenes" your years ago and got to see the projection dome from the outside. That was pretty freaky.

Re: Omnimax

#47
post #40

Great article! Thanks for sharing your research into the history of these super interesting theaters and projection systems. There is something I've wondered about though: > While far from inexpensive, digital projection systems are now able to match the quality of Omnimax projection. Are they really? The St Louis Science Center Omnimax was switched from the 70mm film system to "laser 4k" digital projection in 2019.…

I thought it was 8k rather than 4k that was generally considered to be roughly equivalent to IMAX?

Re: Omnimax

#48

I spent a great deal of time at Reuben H. Fleet as a kid growing up in San Diego, playing in the science museum and watching whatever Omnimax movie was on. Didn't matter what it was, they were almost always great eye candy. Even saw, later, a Pink Floyd-themed laser light show projected on the dome. Never failed to impress.

I also grew up in San Diego with an intimate connection to Balboa Park and the Reuben H. Fleet. Watched the original Aerospace Museum burn down; quite a warm night on the Prado.

The Fleet was where I played the Coordination Game with 2 hand controls and 2 pedals for my feet, old incandescent bulbs behind colored cels to match up simultaneously. I think I scored over 30.

The Fleet was where I took science classes in summertime. We learned how to make “Oobleck” and we used Apple ][ computers. It was where I found my first blinking cursor. I couldn’t type; I couldn’t find “g” on a Qwerty!

Fleet had the Cloud Chamber and Whisper Dishes and the big Periscope that must’ve got moved 5 times??? There was the orbital simulator where you’d roll balls down a black conical incline, and someone else threw in a coin?

We watched Carl Sagan do stuff and Jacques Cousteau. None of the IMAX films had a memorable name or stars, but they were all documentaries with obligatory aerial shots on the geodesic dome.

One science thing not in the Fleet science center but across the Prado, just as near the giant fountain: "The Nat" (San Diego Natural History Museum) hosted a giant Foucault Pendulum, 3+ stories high, toppling "dominoes" all day every day, to tell us the time!

Very late in time, it must've been ca. 2005 -- Mythbusters Live was on tour and they made an appearance at the Fleet. So it was Kari Byron and that Japanese guy who's dead now, and someone else like, I don't know, all my attention and amorous energy was focused on Kari, OK? And they had a panel discussion and then a live Meet & Greet and we posed for a photo while Mythbusters characters posed in real life next to us. And they autographed my photo I think. They had a full Mythbusters-themed display at the Fleet during that time, with hands-on.

Hands-on is the name of the game at the Fleet. You touch it! It moves! You respond! Der Blïnkënlīghts! It's a museum and a science center!

I purchased and ate genuine Astronaut Ice Cream (freeze dried) from the gift shop. A hologram sheet that was a real laser-encoded, white-light 3D hologram of a woman blowing a kiss! The Fleet Gift Shop had the best science toys and the best hard-science experiments! Reality-based, evidence-based entertainment! ("Edu-tainment"???)

The Fleet had one or two little side theaters where they would hold lectures and in-person appearances. We were rarely privileged to peek in, or much less sit in there; it seemed like a VIP experience. But they definitely had a screen and a lectern and awesome sciency science.

I believe that Tijuana eventually built their own IMAX attraction theater across the international border. You could go to smelly polluted Mexico and have your stupid turistic IMAX show. But OMNIMAX was different and something uniquely special. And plenty of mojados in San Diego proper. With clean air and crystal clear waters in the Coronado bay!

I never saw the Pink Floyd show!!! You must be mentally ill to purchase a ticket and I was diagnosed late. But the Pink Floyd Laser Show was the only laser show and it was a huge thing in the 1980s! It was like Grateful Dead jams for nerds!

Re: Omnimax

#49
Awesome article. I have fond FOND memories of all of these things from MSI Chicago growing up. It was an epic experience to see such a film.

Re: Omnimax

#50
post #40

Great article! Thanks for sharing your research into the history of these super interesting theaters and projection systems. There is something I've wondered about though: > While far from inexpensive, digital projection systems are now able to match the quality of Omnimax projection. Are they really? The St Louis Science Center Omnimax was switched from the 70mm film system to "laser 4k" digital projection in 2019.…

This is definitely an area for debate. I've seen the physical resolution of a 70/15 film frame estimated at 70MP, which is obviously a lot more than the ~8MP of 4k. The MP comparisons between film and digital are a little iffy though, and digital ought to be sharper within the limitations of that resolution than film. Ultimately it comes down to marketing but, having not had a direct comparison, I would still expect…

I did some scanning for Universal. Depending on how the image is framed, you can usually just squeeze 4K from 35mm. The 70mm I had I easily pulled 8K from and I'm pretty sure I could have gone to 10K.
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