--- Canopus56 <canopus56@yahoo.com> wrote: After working on my "trash can" light box last night, it turns out that I could not get a uniform flat field from an inline design - flashlight, diffuser plate and white field plate. So, I'm back to the basic Berry & Burnell reflective design - the lights point backwards away from the white field plate and into a trash can lined with white board. Canopus56 wrote before:
I'm new to this myself but happen to be in the middle of building a white light box, this evening in fact. . . . . Berry & Burnell's _Handbook of Astronomical Image Processing_ recommends building a white light box. . . . Here's a link to another amateur's page who built a Berry & Burnell type screen (below the fold, in the middle of the page): http://www.angelfire.com/space2/tgtan/equipment.htm In this version, the lid of the box has a white field screen. The light is projected _backwards_ . . . . I'm trying to build a simplier version of the Berry & Burnell that I call the "inline trash can light box." After I'm finished, I'll post again and let you know if it produces flat white field.
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