Light Box

[Fay]

Box has had a modification, now there are two lids each with a hole to hold the ED80 a bit better. The lid has not been glued but is fixed with low tack sticky tape in case access is needed. Hope the light is ok. Until it's tried, I don't  know if another mod will be made.
Have put another picture on the next post as could not do two on this page, probably doing it wrong.

[Fay]

[Mike]

Looks like a very complicated design, but I see no reason why it should work well. If teh lights are too bright you can always install a pot, or even better some sort of permanent resistance once you know how many ohms are necessary to allow you to dim them. Are they LED's or filament bulbs?

[Fay]

LEDS, the light is quite calm, not too bright. Mike should the whole image be the same ADU measurement or should it just be an average of just below the well depth?

[Mike]

I believe an average ADU across the image of half the well depth will suffice.

[JohnP]

Fay - Like I said before the whole image will not be the same ADU e.g where there is dust & vignetting (if you have any) the readings will be less (darker). It's only approx - you don't need to be too exact.....!

John

[Fay]

Thank God for that! I did a quickie, indoors & the ADU was fluctuating,& I thought, good grief!
I did not realise you had already told me that.