Originally Posted by ic-racer
How much more 'proof' do people need?
How much more 'proof' do people need?
Tin Can
I'm not surprised. Using the CREE XTE-E Cool White LEDs I found a nice even progression with Ilford filters as well. I imagine the Autograph head uses similar LEDs.
This is on my list of things to do.......
Good stuff, guys!
“You often feel tired, not because you've done too much, but because you've done too little of what sparks a light in you.”
― Alexander Den Heijer, Nothing You Don't Already Know
Here are pocs of my 11x14 enlarger hack (i mean that in the strictest terms) It's a Beseler 5x7 enlarger which had a large reflector dome. I made a proper size riser from 1/2" Black foamcore board, use a piece of plain glass on the riser, a piece of non glare framing glass on top of the neg, a piece of opal acrylic on top of that and the led head I mentioned in an earlier post. This is really ugly and I was going to make new version, but this one made good prints the first day...I decided not to mess with it))
Great stuff Evan. I have not made my 11x14 yet. I am making a 6x17 mm De Vere conversion now, but 11x14 is still in the works.
Tin Can
I just brought in to the fine arts building here a massive 5x7 Durst. The plan is to cut off the destroyed head and mount a Calumet 8x10 camera carcass on it. Then fabricate the diffusion head with one of those panels. Wish I had more time to do this stuff...
I still think there has to be an easier way than putting a C1 on top.
I bought a cheap NEMA 6"X8"X10" electrical box as extension top for my 5x7 from De Vere 504 conversion. I'm just stacking up store bought parts. It's very square dimensionally and stronger than necessary. Top that a piece of anything flat 12X12" with a 5X7 hole. Then all you need is Evan's glass neg carrier and lay the light panel on top.
Simple is best. Less fabrication is best. Plan ahead on paper. I guess that's a pun...
Copy some of this. The funnel can be a box. http://www.ebay.com/itm/171336182909
And this. http://glennview.com/jpgs/810/glennv...robe/big_1.jpg
Tin Can
You may be right, but I already have this camera purchased for this very reason, so, probably easier for me to toss the 5x7 head assembly. It's rusted and destroyed anyway. The entire head would need to be stripped and rebuilt from scratch, and I am personally never going to shoot 5x7 so I have no use for it "as-is."
To summarize, if I understand correctly, most LED arrays have noticeable hot spots even with diffusion glass and the ArtOGraph does not, and you simply put put the ArtOGraph on top of the negative carrier? That sounds pretty simple compared to ideas I had like hacking a 34$ ceiling fixture I saw at a big box store---it has a half a dozen or so strips of LEDs. I'm very encouraged by the step wedge tests, I'd been wondering about VC paper results with LED light sources. I use the highest color temp LED and fluorescents in my studio because when I paint I like the colors to look like what I see in sunlight.
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