Hacking 8x10 and 11x14 enlarger LED head

[Joan Aguer Poch]

If I use it in my enlarger (a camera Cambo) and works perfectly

[Joan Aguer Poch]

If I use it in my enlarger (a camera Cambo) and works perfectly

Oh those just miss the 8x10 coverage needed. Though this one might work:http://www.ebay.com/itm/Highpower-LE...item1e8b1cd97d What would potential problems be with this as a light source for an 8x10 head?

[Tin Can]

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.

Yep painters want full color spectrum. I built my wife a really bright, intense daylight painting studio that was very close to daylight with 8000K tubes, I copied on a large scale, for her big studio, the paint chip lighting at paint stores.

Photographers don't seem to want that, they want gallery or museum lighting.

[Tin Can]

If I use it in my enlarger (a camera Cambo) and works perfectly

Oh those just miss the 8x10 coverage needed. Though this one might work:http://www.ebay.com/itm/Highpower-LE...item1e8b1cd97d What would potential problems be with this as a light source for an 8x10 head?

Do you mean you simply place the Artograph on the back of of your camera for enlarging?

Like this, but bigger? http://www.graflex.org/speed-graphic/graflarger.html

[Tin Can]

If I use it in my enlarger (a camera Cambo) and works perfectly

Oh those just miss the 8x10 coverage needed. Though this one might work:http://www.ebay.com/itm/Highpower-LE...item1e8b1cd97d What would potential problems be with this as a light source for an 8x10 head?

For 8x10 I use this one with a matt board mask to the right size. http://www.dickblick.com/items/55337-1023/

[Joan Aguer Poch]

Yes, and here's a picture of my enlarger,
everything except the camera Cambo, self build
Sorry for my bad ingles (the google translator)

[Tin Can]

Yes, and here's a picture of my enlarger,
everything except the camera Cambo, self build
Sorry for my bad ingles (the google translator)

Very nice. Very professional. Big darkroom!

[Uncle Jim]

Hi,

I'm in the process of converting my 5 x 7 Elwood to an 8 x 10 using the Artograph. Has anyone had a problem with using a timer to run the Autograph? Does it work correctly with an electric timer? I have several, but have seen warnings on LED lights
in the big box stores not to use those lights on a timer, so am wondering. Thanks.

uncle jim

[Joan Aguer Poch]

My light is not a Artograph is a ceiling light and peculiarly
is much the same.
Powered leds, he already has a small power transformer,
and plugged into 220 volts.
I appreciated any problem in its functioning.

[Tin Can]

I use several different timers with my Artograph's, I have 2 of them, but I am not high production so usage is low and I cannot vouch for years of use.

I have had no trouble using standard photo enlarger timers, but I have noticed a bleed in the safe light circuit which makes my RED LED 1 watt safelight dimly glow when it should be off. You will find info on that elsewhere on this forum, but it's no big deal.

I have only noticed warnings in USA to not use LED's with a dimmer IF the LED is not specifically designed for dimming.

Anything DIY is not a sure thing, only a store bought item produced by a known corporation might be ok.

Don't play with matches.