Quote:
Originally Posted by AlexN
Also, here... http://www.elec2go.com.au/category7_1.htm
A3 electroluminescent sheets are $150AUD If your scope requires more area than A3, then move to A2... however, the prices get silly above A3..
For those who image with smaller scopes, the A4 sheet at $75 would be perfect. frame it somehow to keep it flat, sit it on the aperture of the scope and run of 20~30 flats... I would assume you could modify them to run of 12v power too...
I'll be ordering an A3 sheet in the next few days.. 
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Ah .... I see , you use them to a means to compensate for vignetting .
If you are using the same scope all the time , you need a set per imaging session .... not started using my DSLR for astroimaging yet .... got a bit to learn I see.