20х24" enlarger

[mamanton]

Good morning!
I returned from Photokina, Cologne. We discussed a lot of the big enlarger. In the next few days I'll post pictures of our project.
And yet a few photos of the Heiland electronic space booth.






Special thanks to Stefan Diller for the 20x24'' negative!

And some news from the Photokina 2016:
- A control for Heiland LED cold light source for exposure of colour papers for RA4 and llfochrome processes.
- A darkroom device useful to detect dust on negatives.
- Heiland TAS film processor moves now also Jobo Expert Drum tanks.
- A new version of Heiland LED darkroom light equipped with yellow LEDs enables the secure work in the colour lab.
- A four colour LED option is now available for Heiland densitometer series, in order to enable density measurement of negatives processed with staining developers.
- And of course, first results of the design of an LED cold light source for ultra large format negatives with size 20x24 inches.

[mamanton]

The enlarger skeleton



LEDs module with a heating (or cooling) system will weight about 80 kg itself. Contains 15552 LEDs. Fans will be switched on only with white light for focusing, and will be automaticaly switched OFF during the exposure.



LED module, mixing box and negative carrier will be with a rotating mode to 90 degrees - portrait and landscape orientation.

[mamanton]

That heavy duty stick should be powerfull enough to rotate about 100kg (LEDs + Negative carrier)



Fans on two sides. From one side - blows in, and blows out - from another.





The deminsions of the module are bigger than the negative - 27x22'' or 684x560cm - to preserve the same brightness on the corners and borders, like in the center.



Next series coming soon....
Mixing box
Negative carrier

[Tin Can]

You may want to consider Pierre's comment on fans, http://www.largeformatphotography.in...larger-factory

[blindpig]

For some reason I can't open the pictures in your last two entries. Is anyone else having trouble with this?

[Fred L]

nope, can't see following photos either.

[choiliefan]

I can't see them either.

[Cor]

No pictures visible for me either..

[mamanton]

Sorry!
Can anybody see the pictures now?

[Tin Can]

Yes