Your lectures are real treasures and the best material one could find in the area of molecular life sciences. Thank you for your work, it is a lot of effort, but the product is awesome. With gratitude from Ukraine
Please feel free to share your own comments about similar setups, both things that work well and ones that didn't. I'll add one important caveat myself: As interesting as all the tech is, one of the elements in the class most appreciated by students is that I also decided to split the 2x45-min lecture passes into playlists with short and well-defined 5-minute concepts that they can review - and that doesn't require a single piece of tech to do :-)
WOW!! A lot of work. BTW, thank you for sharing those "sexy lectures" 😜. That phrase is copyrighted to Dr. Erik (Mostly said when he talks about cryoEM).
Have several similar setups. Bigger. We use a Decimator MD-HX to flip the video electronically instead of using a mirror. But that works, too. if you grow dissatisfied with the mirror, you can mirror with a decimator. In HD, that is about $295 US. There is a new 4K version at $495USD. These also convert HDMI to SDI or SDI to HDMI or scale in many configurations.
Nothing fundamentally wrong with the decimator, but it always adds a latency of at least 1 frame, which at 50fps is still 20ms, and that can be noticeable when you're watching yourself in the monitor screen. The latency from the front-silvered mirror amounts to the ~10 cm extra distance for the light to travel, or 3ns :-)
@@eriklindahl Many things in the path cause some latency. Your ATEM is adding a little. Even the camera is probably adding more than you think on its own output. Your monitor, itself, is likely adding several frames. They tend to do that. I could not find specific latency specifications for the Decimator, but I doubt it delays more than a line or two for a direct HDMI to SDI or vice versa conversion - but when using the scaler or flipping the image, I am sure it adds at least one frame. Typically, people do not notice one frame of latency. You really only get problems when you have one here and one there, and another over there - and soon you have real, noticeable delay. That of course is up to you and your setup as to how much you can tolerate. I run audio through an audio board where I typically add 30ms or so of delay to my audio to help offset any delay in the video, and have it match up. Honestly, if i were to complain about the effects of the decimator in this light-board setup, it wouldn't be delay. I find that imperceptible. But I would point out a degradation in video quality in the image reversal. It does a good job, but far from a perfect one. I definitely notice digital artifacts from this process. In the end, it is all about how much of what issues you can accept, or not. The image flip's convenience outweighs the problems for us. We also have a different lighting setup from you. We 3-D printed brackets which hold LED strips to the glass edge, but also have places on those brackets for two other LED strips directed at the presenter. This makes the whole glass pane act like a giant ring-light. Works pretty well. We determined we needed only one strip at the bottom, with two on the sides and top. Some frosted gel added a softening. And we ended up replacing our initial LED strips with higher CRI strips and a better dimmer module. The first ones weren't great. As they are now, they look quite good. The biggest benefit aside from even lighting, is that, since the lights are basically attached to the glass, we have eliminated the vast majority of reflection problems. The drawback is the lights being so close to the presenter, that they can seem a little harsh. Dimmer and frost helped. Anyway....good luck with your setup. I always like seeing how people do the same things in different ways.
We also used Ultraviolet LED in the glass, but ended up removing them. Didn't like the way they made everything look blue instead of seeing the distinct colors. Switched to 5600k LEDs.
Your lectures are real treasures and the best material one could find in the area of molecular life sciences. Thank you for your work, it is a lot of effort, but the product is awesome. With gratitude from Ukraine
Please feel free to share your own comments about similar setups, both things that work well and ones that didn't. I'll add one important caveat myself: As interesting as all the tech is, one of the elements in the class most appreciated by students is that I also decided to split the 2x45-min lecture passes into playlists with short and well-defined 5-minute concepts that they can review - and that doesn't require a single piece of tech to do :-)
This is incredible! Thank you for sharing!
WOW. And I thought my 3D printed neurons were neat teaching tools. Thank you so much for the showcase of your teaching studio.
Thank you for sharing this information.
WOW!! A lot of work.
BTW, thank you for sharing those "sexy lectures" 😜.
That phrase is copyrighted to Dr. Erik (Mostly said when he talks about cryoEM).
Have several similar setups. Bigger. We use a Decimator MD-HX to flip the video electronically instead of using a mirror. But that works, too. if you grow dissatisfied with the mirror, you can mirror with a decimator. In HD, that is about $295 US. There is a new 4K version at $495USD. These also convert HDMI to SDI or SDI to HDMI or scale in many configurations.
Nothing fundamentally wrong with the decimator, but it always adds a latency of at least 1 frame, which at 50fps is still 20ms, and that can be noticeable when you're watching yourself in the monitor screen. The latency from the front-silvered mirror amounts to the ~10 cm extra distance for the light to travel, or 3ns :-)
@@eriklindahl Many things in the path cause some latency. Your ATEM is adding a little. Even the camera is probably adding more than you think on its own output. Your monitor, itself, is likely adding several frames. They tend to do that. I could not find specific latency specifications for the Decimator, but I doubt it delays more than a line or two for a direct HDMI to SDI or vice versa conversion - but when using the scaler or flipping the image, I am sure it adds at least one frame. Typically, people do not notice one frame of latency. You really only get problems when you have one here and one there, and another over there - and soon you have real, noticeable delay. That of course is up to you and your setup as to how much you can tolerate. I run audio through an audio board where I typically add 30ms or so of delay to my audio to help offset any delay in the video, and have it match up.
Honestly, if i were to complain about the effects of the decimator in this light-board setup, it wouldn't be delay. I find that imperceptible. But I would point out a degradation in video quality in the image reversal. It does a good job, but far from a perfect one. I definitely notice digital artifacts from this process. In the end, it is all about how much of what issues you can accept, or not. The image flip's convenience outweighs the problems for us.
We also have a different lighting setup from you. We 3-D printed brackets which hold LED strips to the glass edge, but also have places on those brackets for two other LED strips directed at the presenter. This makes the whole glass pane act like a giant ring-light. Works pretty well. We determined we needed only one strip at the bottom, with two on the sides and top. Some frosted gel added a softening. And we ended up replacing our initial LED strips with higher CRI strips and a better dimmer module. The first ones weren't great. As they are now, they look quite good. The biggest benefit aside from even lighting, is that, since the lights are basically attached to the glass, we have eliminated the vast majority of reflection problems. The drawback is the lights being so close to the presenter, that they can seem a little harsh. Dimmer and frost helped. Anyway....good luck with your setup. I always like seeing how people do the same things in different ways.
We also used Ultraviolet LED in the glass, but ended up removing them. Didn't like the way they made everything look blue instead of seeing the distinct colors. Switched to 5600k LEDs.
Coooolt! Märks på kvalitén av videorna att setupen är satsig