[alt-photo] Re: Cyanotype Light sources

[Matti Koskinen]

On Feb 1, 2012, at 9:38 PM, Rafael Frota wrote:

> First of all, thanks a lot for the support. I´m going to be objective
> 
> 
> Matti Koskinen
>>> like the energy saving bulbs. 
> Is it the same that CFL? I don´t know too much about this terminology
yes, here they are called energy saving bulbs (the EU who banned normal tungsten lamps)
Mine are of type Sanex STD-15 15W, normal E27 socket.  Using oiled negs, cyanos take 1h, but a transparency the 20min. Temperaprints take 5min. Tried very little casein prints, and they were as low as 1.5-2min
> 
>>> I have three of them mounted on a piece of wood. And exposure is abt. 20 mins. 
> How many watts? Would be perfect to me! It´s a very good exposure time and the cheapest option. But see the Juan answer. He spend 1 hour
> 
> Loris Medici
>>> Don't you have the usual straight / long Osram or Philips tubes in Brasil?
> Osram is VERY difficult to find. Phillips I think I can find (not too easy) these kind
> http://www.catalogosiluminacao.philips.com.br/catalogo/?section=1&item=5 
> 
> But I think  tubular very difficult to work. Needs a lot of supplies. I´d like to do something simple, with compact fluorescent, if it is possible anyway.
> 
> The problem with importation of any product here in Brazil is the expensive taxes that we pay. If I buy a single lamp about $8, this will cost $32 (about R$64 in Brazil). Could you figure how expensive is?
> So, I´m trying make this lightbox with local supplies.
> 
> 
> Juan
>>> I use them for printing albumen, and they work well, though they are slow- sometimes an hour exposure.
> 
> This is the configuration that I want, but 1h I think too much. I suppose cyanotype needs even more time, don´t?
> Did you use 6 x 27 watts?
> 
> Gordon Holtslander
>>> sylvania F40/350BL/ECO
> 
> Unfortunatly I can´t find it here in Brazil.
> 
> 
> Nelson Mark
>>> If you haven't checked out Ed Buffaloe's Unblinking Eye alt photo site, you should do so.
> 
> I´ve read these articles. Really amazing. The problem is, as I said before, we don´t have access to these supplies here in Brazil. Or we have to pay too much (too too toooo much).
> 
> 
> Now, I only see 2 ways:
> - Build my own lightbox with the supplies that I can find (as the blacklight CFL that I said. But how many? Very long exposure times?) or
> 
> - Try finding some way to get a sunbed like this: 
> http://www.amazon.com/CalSun-Facial-Tanning-Lamp-Tanner/dp/B001BH0A1A/ref=sr_1_1?ie=UTF8&qid=1328122510&sr=8-1 
> 
> 
> 
> And thanks again!
> 
> Hugs!
> 
> 
> Rafael Frota
> 
> 
> 
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