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I found a perfect flat maker

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40 replies to this topic

#26 KTAZ

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Posted 10 September 2020 - 08:40 PM

Has anybody done any subsequent testing on this panel? I would invest in one, but only after a few of you pros give it a thumbs up...I’m too new at this to do the testing myself, but I know enough to want to be able to do my flats at the start or end of my session.



#27 Deesk06

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Posted 10 September 2020 - 10:23 PM

For anyone wondering, not that it really matters because AP is expensive, and whats a few extra bucks.https://camelcamelca...duct/B07JFTTMF4 The lowest price this has been is $45..So you could wait and save a few dollars. But I know we are all impatient and in this hobby $10 is pennies compared to the other stuff we buy lol. 


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#28 stryker66

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Posted 11 September 2020 - 09:15 AM

Has anybody done any subsequent testing on this panel? I would invest in one, but only after a few of you pros give it a thumbs up...I’m too new at this to do the testing myself, but I know enough to want to be able to do my flats at the start or end of my session.

Good luck bro, we are all amateurs here LOL, the only one that can give you an honest opinion is the one that has own one, I  usually ignore the pro's..



#29 KTAZ

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Posted 11 September 2020 - 12:00 PM

Good luck bro, we are all amateurs here LOL, the only one that can give you an honest opinion is the one that has own one, I  usually ignore the pro's..

I guess my point really has nothing to do with "pros"; it has to do with having more than one data point.


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#30 lasvideo

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Posted 20 September 2020 - 04:21 PM

Gonna give this one a try with my Celestron Edge HD 8".

 

  https://www.amazon.c...customerReviews


Edited by lasvideo, 20 September 2020 - 04:22 PM.


#31 rockstarbill

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Posted 20 September 2020 - 05:07 PM

The sky works really well. Free too.

#32 KTAZ

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Posted 20 September 2020 - 09:02 PM

The sky works really well. Free too.

Very hard to argue with that point.

 

The only reason I am considering one is to be able to shoot my darks at the end of my session (or even the start) so I don’t have to leave my rig together until sunrise.


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#33 TxStars

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Posted 20 September 2020 - 10:51 PM

If it is too bright you could cover it with this.

https://www.amazon.c...t/dp/B00IW9691K



#34 GoldSpider

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Posted 21 September 2020 - 08:44 AM

The sky works really well. Free too.

 

For some reason, needing to take flats with exposures at least 3 seconds leaves a very narrow window of time at evening/morning twilight.



#35 calypsob

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Posted 21 September 2020 - 08:52 AM

This one has no banding and it is wireless with a rechargeable battery.


Got a link to it on amazon?

#36 calypsob

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Posted 21 September 2020 - 08:52 AM

The sky works really well. Free too.


Ive nver had success with sky flats

#37 lasvideo

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Posted 21 September 2020 - 10:04 AM

Got a link to it on amazon?

https://www.amazon.c...K/dp/B07JFTTMF4


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#38 KTAZ

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Posted 21 September 2020 - 12:39 PM

If it is too bright you could cover it with this.

https://www.amazon.c...t/dp/B00IW9691K

I bought this which just covers my 9.25 aperture perfectly. Can place as many layers of tee shirt in it as you wish.

 

https://www.amazon.c...e?ie=UTF8&psc=1

 

A lot cheaper and flexible (won't ever crack if you drop it). You can use it for sky flats and it also would probably work between the Vitrox and your scope to reduce the brightness.

 

It's hard to beat for $7.


Edited by KTAZ, 21 September 2020 - 12:40 PM.


#39 limeyx

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Posted 23 September 2020 - 12:10 PM

Since I don't have access to Google Drive I'll assume that you've posted your flat masters.

That is not a test of how accurate the flat is, and presumably how even the illumination is from your flat panel.

Here is a link to an article on how to test a flat panel:

https://www.optecinc...T_March2011.pdf

It's easy to get a flat that kind of works, it's not so easy getting one that works well (or is 'perfect').

 

dan k.

Thank you SO much for posting that PDF. I have really been fighting with flats and need a scientific way to evaluate them. I haven't read that yet but I really appreciate you posting it



#40 KTAZ

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Posted 24 September 2020 - 03:08 PM

Unfortunately, the 10" model is not large enough for the C9.25.


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#41 TimN

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Posted 24 September 2020 - 05:20 PM

I got the 10" model for my AT8RC and it fits nicely with a bit over the edge. I received an adapter with it so I'll keep it plugged into AC as I only image in my backyard observatory.

 

I had been using a cheap panel for years and it worked well. What I didn't like was that there was no way of setting it to a particular intensity. So, each session I would play around with SGP's flat callabration to find the correct setting for each filter. When I saw this one has settings for both intensity and light, plus the ability to remember the last setting, I thought it was worth trying.

 

Now, it is adjustable down to 20%. If it actually could be tuned to close to 0, it really would be fantastic. Even 20% with a T-shirt is too bright for me. So, I decided to get a sheet similar to what TxStars posted but one that only lets 32% of the light through. Hopefully that will bring me within range. 

 

This is what I ordered. https://tinyurl.com/y42qhtwq


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