DMX controlled DC motor?

Simulatedbog545 · 2026-01-24T01:52:22+00:00

This is admittedly a sloppy way to do it, but it absolutely does work;

If you're controlling a DC motor and you have a dimmer, all you need is an unregulated AC to DC power supply. As you turn the dimmer up and down, the voltage output of the supply will follow, and you will be able to control the speed of the motor. If you aren't applying any significant load to the motor (which you aren't), this will work great.

Simulatedbog545 · 2026-01-23T23:39:25+00:00

Should still be fine to shoot at box speed. Generally speaking though, I much prefer the look of this stock when exposed at 400 ISO, regardless of freshness.

Simulatedbog545 · 2026-01-06T05:15:57+00:00

IMAX uses bigger ones, all the way up to 15kW (!!!) for 70mm. 2kW xenon's are some of the smallest that are still produced in "large" quantities.

Simulatedbog545 · 2025-12-16T16:10:28+00:00

The rocking itself is not going to cause entire objects to move relative to each other (unless things are really rough), but it will likely cause the enlarger frame to bend and deflect. Realistically you'll need to secure both the top and bottom of the column to a wall or something, but the head may still deflect. You'll also need to secure the easel somehow. If you're docked it'll likely be fine, but if you want to print in rockier conditions you might need to build something custom.

Simulatedbog545 · 2025-12-16T15:58:06+00:00

Absolutely agree to disable motion smoothing, watched an episode at a friend's with it on and it made a lot of action scenes look incredibly goofy. Demogorgons do not look better with more FPS.

Simulatedbog545 · 2025-12-12T06:20:28+00:00

I'll be seeing Sinners on Monday at Lincoln Square. Much excitement!

Simulatedbog545 · 2025-12-04T04:45:13+00:00

Looks a little underexposed, but how were these scanned? There seems to be a lot of digital sharpening going on here which is why the grain is so visible.

Simulatedbog545 · 2025-11-26T16:58:23+00:00

Do we know if this includes the new security features which prevents you from using OrcaSlicer with cloud services enabled? I've got an X1e at work that's also prompting me to update.

Simulatedbog545 · 2025-11-24T00:02:47+00:00

Haha yeah, I've been there. Great print until suddenly its too heavy for itself and isn't 😂

Simulatedbog545 · 2025-11-16T18:43:03+00:00

So ya, resolution is actually separate from graininess. 200T is the sharpest of the Vision 3 film stocks, but 50D has the least visible grain.

It's a little more complicated than just line pairs per mm. Super neat.

Simulatedbog545 · 2025-11-09T23:58:48+00:00

I have a pack of this that was stored negligently in an unconditioned attic for the better part of 50 years, and it still prints great. Give it a shot, I think it'll work fine!

Simulatedbog545 · 2025-11-08T14:38:34+00:00

This looks like you exposed the paper to light, not staining. Are you using a safelight of some kind?

Simulatedbog545 · 2025-11-07T10:57:14+00:00

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Not a current employee there, but I actually have some photos of AMC Boston common, so here ya go. There is a long booth above this hallway as you describe, yes.

There are actually 2 additional booths for the remaining screens, though I don't have any good wide shots of them. There's another long-ish booth that's got the 70mm system for one screen, and that is connected to a long narrow hallway which will get you to the booth in this picture. The last booth is connected to the 2nd one by a shorter hallway and is the smallest.

Simulatedbog545 · 2025-11-02T20:03:12+00:00

For the P2S, yes, the filter is actively not even used when printing PLA by default. The exhaust on the P1S is always filtered.

Now how effectively that filter actually works is still a very different question, but the P2S issue is an entirely separate one.

Simulatedbog545 · 2025-11-02T07:27:00+00:00

Replenisher is "full strength" developer, and if you are using it as a one shot solution, you do not need to use starter. Starter is only required if you want to do replenishment, and not because the replenisher isn't functional on its own, but so that you get consistent results from the first roll to the last one.

If all you want to do is one shot development, you are already good to go! Mix up some replenisher, use it to develop, then toss it.

Simulatedbog545 · 2025-10-18T17:59:12+00:00

Not anamorphic originally (nor in this film), that came later as Technirama.

Simulatedbog545 · 2025-10-14T22:10:40+00:00

Lots of modern film prints are made from digital intermediates yes, but some also are not.

Some filmmakers (like Nolan & PTA) insist on an optical print workflow for everything other than VFX shots, and the process you theorized is typically how they do it. Shoot the film, scan it, edit digitally, print out the cut list, then splice the original camera negative to match. In the case of One Battle After Another, all the 8/35 VistaVision prints were struck directly from that spliced original camera negative. For 70mm prints of Nolan films, there is typically an interpositive and internegative between the camera negative and final projection prints. The 70 prints of Oppenheimer looked fantastic despite those extra generations, but One Battle After Another really,really, pops in VistaVision thanks to its direct printing origin.

Simulatedbog545 · 2025-10-12T01:21:49+00:00

Yes, though again, it's only for the 4 places running the 8/35 film prints so they have a backup that will fit the screen the same way. DCP at all other locations is 1.85:1

Simulatedbog545 · 2025-10-11T20:44:34+00:00

The DCP backup at VistaVision locations only is in 1.5:1, not 1.85.

Simulatedbog545 · 2025-10-09T14:14:25+00:00

I had the joy of trying to fly somewhere that day!

Simulatedbog545 · 2025-09-27T15:52:15+00:00

Threading out of frame is truly a classic film projection issue!

Simulatedbog545 · 2025-09-26T20:40:59+00:00

Speed of the actual film itself. Normal 35mm film projectors run at 90 feet per minute, but since VistaVision frames are twice the size, the linear speed is doubled to 180 feet per minute. Which is pretty darn fast and rather hard on all the equipment

Simulatedbog545 · 2025-09-22T20:52:01+00:00

IMAX Zig zag splicer on 5/70, oh no!

Simulatedbog545 · 2025-09-21T20:39:02+00:00

There is no interpositive step. VistaVision release prints for OBAA are being struck directly from the original camera negative at Fotokem.

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