Support our Sponsors, they keep FADU free: AG Photographic The Imaging Warehouse Process Supplies RH Designs Second-hand Darkroom Supplies |
> Red filter for darkroom illumination |
*** Click here for the FADU 2015/2014 Yearbooks *** |
|
Thread Tools | Search this Thread | Display Modes |
#11
|
|||
|
|||
Darkroom lighting
You simply cannot get enough (safe) lighting in a darkroom. I booted red lights into touch a long time ago and use my DUKA colour safelight. Normlly set at 5% output for colour work but at full output for B&W. I have never had a fogged sheet of paper with the DUKA. It is so bright that 5' from the reflected light on the ceiling, I can see to read a newspaper.
Yes, they are expensive even 2nd hand, but well worth it. (Process supplies still have them and spare bulbs new) |
#12
|
|||
|
|||
Quote:
I also use a Duka and find it very effective for B&W. You have to let it warm up for a few minutes before is safe. I have never noticed any fogging, although I keep planning to dos test, but never get round to it. Alex |
#13
|
|||
|
|||
Talking of using a DUKA for B&W do you find you need the red or reddish looking filter that sometimes comes with the DUKA for B&W.
I say "sometimes" as these aren't always available when buying secondhand DUKA. I haven't got one but I am hoping that Alex and John find that the DUKA is safe without this red filter. Is it safe for B&W without any additional filter placed on the built-in white cover? Thanks Mike |
#14
|
|||
|
|||
Hi Mike. I have, but don't use the red
filter. Safe lights for variable contrast paper tend to be brown, rather than the red type which seem to be for graded papers. I just use the unfiltered Duka with the output turned down. It has never caused a problem. I have bought two used Dukas and both came with the red filter. Alex |
#15
|
||||
|
||||
Try these:
https://www.superbrightleds.com/more.../attributes/13 Cannot guarantee for any and all papers, but they have tested "safe" for Ilford Multigrade in my darkroom. Rubylith would be your best bet for filter material. Or, a proper safelight filter. |
#16
|
|||
|
|||
Yes, but most suppliers only give vague information about the spectral emission of packaged LEDs. A thread on APUG a couple of years ago, which warned of slight emission of green in some types, recommended wrapping a screw-in red LED assembly in Rubylith, just to make sure. Good advice.
|
#17
|
|||
|
|||
DUKA Safelight
Quote:
|
#18
|
|||
|
|||
Thanks, John and Alex for the DUKA information
Mike |
#19
|
|||
|
|||
MARL, a lighting company, is offering a 24V DC red LED safelight, part no 020 904 22 89 red but the photo on EBAY shows the supply cord terminated in red and black banana plugs - no dedicated power supply!
The price is a bit steep - £59 plus £15 postage. I would expect MARL to have done their homework and select safe LEDs. |
Support our Sponsors, they keep FADU free: AG Photographic The Imaging Warehouse Process Supplies RH Designs Second-hand Darkroom Supplies |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
red filter | GoodOldNorm | Darkroom | 29 | 10th November 2014 11:13 PM |
LPL C7700 uneven illumination | Stan160 | Darkroom | 4 | 25th June 2012 07:53 AM |
CLS 35 Colorhead Illumination | iainkendall | Darkroom | 5 | 30th May 2012 12:16 PM |
Nikon F3 sticky meter illumination button | Phil | Cameras - small format | 2 | 9th April 2012 07:20 PM |
ND filter help please | jonsparkes | Filters | 9 | 18th June 2010 12:15 AM |