Really great information on the flat wizard in NINA! Flats are magical if done right. They also can cut into your imaging time. I, like you , like to take them right after my lights for each filter. Things can change if additional dust falls on a filter or mirror and then the flats don’t calibrate properly. I like your methodology. Best regards Luis from NY
@Hidden.Light.Photography
Ай бұрын
Thank you and yes, I agree, flats can really make or break your image! And exactly, your optical train is forever changing with new dust and such. If you don’t mind me asking, what part of NY?
@starpartyguy5605
Ай бұрын
Years ago I built a light panel from an EL panel and an old square picture frame. I bought a piece of white translucent plastic as a diffuser and a piece of black plastic for the back. Works great although the diffuser has a slight blue tint.
@Hidden.Light.Photography
Ай бұрын
That’s awesome! There’s absolutely nothing wrong with not using an ASCOM controlled panel. Did yours work as intended? Also, did the blue tint cause any issues?
@starpartyguy5605
Ай бұрын
@@Hidden.Light.Photography The slight blue tint caused me to increase the red exposure time to 25% more than the other colors. I made a wooden frame with inside dimensions of 12x12 inches. I taped the EL panel to a 1/4 inch sheet of black plastic and mounted it to the frame with screws. I bought a piece of 1/8 inch plastic sheet to the front as a diffuser. Then I used black foam board and cut a hole the size of the dew shield. The mask allows me to use the device at an event without shining white light on the field.
@starpartyguy5605
Ай бұрын
I just ordered a piece of matte finish plexiglass to replace the white plastic
@Hidden.Light.Photography
Ай бұрын
That is very creative, I love it! And increasing the red exposure time cures any anomalies with calibration?
@Hidden.Light.Photography
Ай бұрын
Keep me posted on the results :)
@davegibson6604
Ай бұрын
The Flat Wizard is fine if you have an automated flat panel (that almost requires a mortgage to buy). For the majority of us that are using an LED trace panel or a white T shirt, the only useful feature of the flat wizard is the "slew to zenith" button. Everything else, I do manually. I just wish someone would make an Led flat panel that would have a wider range of brightness (the ability to go dimmer than they do). I find that I need a tinted panel between the Led panel and the end of the scope in order to get exposure times of at least 3 seconds.
@Hidden.Light.Photography
Ай бұрын
I agree the automated flat panels are pricey. Have you tried dynamic exposure in Flat Wizard? Once you find the ideal exposure time as shown in the video, you can plug the exposure time into the flat wizard and click play. It’ll take all of your flats for you and then matching dark flats if you have a number of dark flats to take listed. Another option, if it’ll fit over your aperture is a tablet. You can get those pretty dim and just google a white screen.
@jameschase9002
Ай бұрын
Good video. Thanks for the insights. ...but one question persists. I get that when running the wizard under the 'Dynamic Brightness' scenario, that because NINA is varying the brightness, a higher value for exposure time is warranted. But when working in the 'Dynamic Exposure' scenario, why do we still need to keep the exposure rating high (...to a hand-full of seconds)? I'm not sure I see the reasoning.
@Hidden.Light.Photography
Ай бұрын
Thank you and this is a great question! This is to keep your flat frames even. Racing your exposures causes unevenness in your camera sensor temperature which can cause your flat frames to be uneven with each other. Even though we’re using exposure as the variance vs flat panel brightness, we still want our flat frames to be effective and having variance in sensor temperature can harm that.
@jeganuae
Ай бұрын
Great video. How do I know what is the required ADU? I use OSC cooled camera. If I use the same temperature of light frames for flat frames, still need to have 2-4sec exposure?
@Hidden.Light.Photography
Ай бұрын
Thank you and great questions! I’ve always had good results with 25,000 ADU. Also, yes, I always recommend 2+ seconds. Running fast exposures creates more heat within your sensor and causes your cooler to struggle to keep up. This is what creates inconsistencies in the temperature between exposures.
@SimonT65
Ай бұрын
You are creating a generic file name path. At @3:57 click on the arrow to the left of 'Image file pattern' you then have the options of creating specific file naming patterns for your Flats. Darks and Bias
@Hidden.Light.Photography
Ай бұрын
Awesome information, thank you!! I will give that a go. Mainly what I was pointing out was default to default compared between the two versions, but doing your suggestion will definitely save some time and confusion :)
@KJRitch
Ай бұрын
I have an artist panel I use for flats that has some adjustment and I use an embroidery ring with a couple of layers of T shirt. I use this on my C8. I use dynamic exposure. I set a range of exposure from 2 to 4 seconds in the Flat Wizard. Should I aim to take my dark flats at the same exposure as my flats or is it the ADU range that is the important value.
@Hidden.Light.Photography
Ай бұрын
Good question! Same exposure is required for dark flats. When Flat Wizard finishes running flats, it will automatically prompt you to cover the scope. Once you cover the scope, press ok on the prompt and Flat Wizard will automatically take your dark flats as long as you have a value set for number of dark flats to take in the upper portion of the Flat Wizard.
@KJRitch
Ай бұрын
I had to go back and look at the last few sessions. I include the exposure in the file name and my Flats are 3 seconds and so are my Dark Flats. Didn't realize that detail.I figured it would go by ADU and the exposure for the Dark Flats would be different. I"m still on NINA 3.0. Is 3.1 HF1 worth downloading? I may have a glitch in the Flat Wizard. The Mean Tolerance values starts at 93 to 10% above the 40% ADU value. Shouldn't it display 10% on either side of the 40% ADU value? It still seems to work though.
@Hidden.Light.Photography
Ай бұрын
Really good number for exposure time! Yes the exposure for dark flats does need to match the flats. Keep in mind, dark flats are darks, but for flats and being dark flats are darks, they are calibrating the flats same as regular darks calibrate your lights if that makes sense. I really like 3.1. That does sound like a glitch. The ADU percentage tolerance should match up and down. In other words, 10% tolerance should give you 10% less and 10% more than your set ADU target.
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