Old 04-09-2009, 12:26 PM
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Exfso (Peter)
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Light Boxes

I have just recently completed building myself a couple of light boxes and I am very pleased with the results. If anyone is interested in me building one for them, PM me and I can discuss price etc, one thing is for sure, they are going to be at least a third of the price of imported ones, and IMHO work just as well. The two attached images will give you some sort of idea of my construction. My method of construction allowes the light box to fit over the front of the telescope/dew shield, much like a cover so one does not need to balance it on the scope.
I use a 12v lighter type connector for the power, and each LED is rated at between 6000mcd and 12000mcd depending on the size of the box required.
If interested please feel free to ask any questions.
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Click for full-size image (Light box power on.jpg)
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Click for full-size image (Light Box.jpg)
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Old 02-01-2010, 03:27 AM
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danielsun
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Pete ,no sorry mate ,can you please resend me your e-mail, just got my laptop rebuilt forgot to save all my addresses.

Cheers Daniel.
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Old 13-01-2010, 03:16 PM
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Just for info, here are a couple of shots of the box I built for my Takahashi 130F.
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  #43  
Old 13-01-2010, 05:15 PM
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Received the light box, great work and thanks again Pete.

Cheers Daniel.
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  #44  
Old 13-01-2010, 09:22 PM
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My pleasure Daniel.
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Old 14-01-2010, 02:41 PM
Muttley (Steve)
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Hi Peter,

Please quote me on one of these. I have the same 8" RC as Paul Haese
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  #46  
Old 15-01-2010, 08:21 PM
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Exfso (Peter)
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Light Box

Hi Steve, as you live in Adelaide, you wont have to pay freight, that is a plus. I have PM'd you
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Old 20-01-2010, 11:58 AM
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Thanks Pete
Received the Light box.... looking forward to using it.
Great service
cheers
Damian
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  #48  
Old 20-01-2010, 05:41 PM
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You are most
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Old 22-01-2010, 05:12 PM
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For all those who use a light poloution filter such as the sls clip, I use one fo my flats taken with this box, as a custom white balance for taking shots and it works a treat, it's not perfect but it's better than nothing.

Sandy
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  #50  
Old 28-01-2010, 05:14 PM
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Mine arrived safe and sound today Peter.
Thanks so much.
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Old 28-01-2010, 09:13 PM
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My Pleasure. Enjoy..
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Old 27-02-2010, 01:51 PM
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For those interested, I am still building lightboxes....
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  #53  
Old 06-03-2010, 01:03 PM
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Just for information, I will be away at the Snake Valley Astro Camp from Friday 12th March until Tuesday 16th March.
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Old 06-04-2010, 09:25 PM
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i just recieved my light box from Peter and i have got to say it works very well and is very well made,great service
Thanks Peter
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  #55  
Old 06-04-2010, 09:30 PM
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They are very good aren't they.
I'm saving up to buy one for my RC8.
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Old 09-04-2010, 09:55 AM
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I am glad to be of assistance. Getting to be a bit of an old hand at building them now, I think I have built around 40 odd up to this point.
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Old 09-04-2010, 10:00 PM
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blindman (Neville)
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Can somebody tell me what are you all doing with light boxes???
Did I miss anything?
Cheers
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Old 09-04-2010, 10:18 PM
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Light boxes are used in Astro imaging to take Flat frames.
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Old 09-04-2010, 11:56 PM
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This is a brief description of what flat frames are all about.

Flat frames are essential if the faintest parts of a target are to be detected. The basic concept is to point the system to a uniformly illuminated light source and take an exposure. The resultant exposure will capture all of the imperfections in the system - vignetting, dust on the optical surfaces, off-axis optics and other disturbances.

The imperfections etc are then removed in stacking the flats with the other frames. A pretty rough explanation but I think you should get the general gist.

Some people use a white T shirt the next day to achieve this, but it has its limitations. It is much better to take the flats at the same time as the primary image as nothing in the image train should be changed before taking flats. You can then move onto the next image, move your focuser etc without hassles as you already have flats prepared for that particular image.
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Old 19-04-2010, 06:07 PM
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