Safelight & Contrast filters

New Trixs on the block

A
New Trixs on the block

  • 1
  • 1
  • 52
Elephant ear

A
Elephant ear

  • 1
  • 0
  • 116
B8 - reworked.jpg

A
B8 - reworked.jpg

  • 3
  • 2
  • 191
Mid Day Matinée

A
Mid Day Matinée

  • 2
  • 0
  • 170
Cumberland Falls-7

A
Cumberland Falls-7

  • 1
  • 0
  • 147

Forum statistics

Threads
181,971
Messages
2,518,281
Members
95,464
Latest member
jowens
Recent bookmarks
0

David Ruby

Member
Joined
Sep 17, 2003
Messages
203
Location
Boise, Idaho
Shooter
Multi Format
I just got my first delivery of Ilford MG fiber paper, and the thought just occured to me that I better make sure that my Kodak OC safelights and Kodak polymax contrast filters will work with Ilford stuff (despite what the package says).

I think I've heard from other places on these boards that they do cross over, but just in case......

Thanks!
 

BWGirl

Member
Joined
May 15, 2004
Messages
3,049
Location
Wisconsin, U
Shooter
Multi Format
I wouldn't think the enlarger or paper would care about the manufacturer of the safelight or the contrast filters. :wink:
I think the worst that would happen is that you might have to do some test prints and make a chart to show how each contrast filter affects exposure and how much extra time (and or stops) are needed for correct exposure. Heck, the chart would be a handy thing to have anyway!
But for the safelight...OC amber should be OC amber and should not make a difference!
Jeanette
 

voceumana

Member
Joined
Aug 4, 2004
Messages
897
Location
USA (Utah)
Shooter
Multi Format
OC filter SHOULD be safe, but ALWAYS test!. Pull out a sheet in total darkness, and do the usual tests: expose a print as normal (without safelight), then block off half of it and turn on the safelight and leave it for the usual amount of time it takes to trim, expose, develop, stop (or rinse) and get into the fixer. Turn off the safelight, and process normally in total darkness. When done, look for any detectable variation between the blocked & unblocked sides.

Personally, I switched to a red safelight a few years ago and have NO problems with it even with very sensitive papers.

The poly max filter's aren't ideal for Ilford, but you can try them & decide for yourself if they give you what you want.

The paper doesn't "know" which filters are used, but the transmission colors & neutral density values are different between Kodak & Ilford, so that the grade steps & printing times won't exactly match when cross-using the products.

Charlie
 

john_s

Member
Joined
Nov 19, 2002
Messages
1,757
Location
Melbourne, A
Shooter
Medium Format
As the man said, you must test. One big variable is the light level you need/want. I have resorted to red also, at a high light level. It's not the easiest colour for the eyes, but it's great for the paper. I have a little yellow-orange LED hand held torch when I need to look closely at some thing in the darkroom (not VC paper!)
 

glbeas

Subscriber
Joined
Sep 25, 2002
Messages
3,865
Location
Marietta, Ga. USA
Shooter
Multi Format
I've found through experience for good illumination with red safelight to take a fairly strong one and bounce it off a white ceiling for a very even lighting. By then time it gets to the paper its a fairly low level but you can see very well with it even so. I have a second one over the tray for inspection. No problems!
 

Ian Grant

Subscriber
Joined
Aug 2, 2004
Messages
22,341
Location
West Midland
Shooter
Multi Format
BWGirl said:
I wouldn't think the enlarger or paper would care about the manufacturer of the safelight or the contrast filters. :wink:
But for the safelight...OC amber should be OC amber and should not make a difference!
Jeanette

The safelight can make a big differance to getting the full contrast range from particularly multigrade papers.

Ilford recommend Amber which works fine, however I remember from experience that the Paterson red safelight was incompatible and they introduced an amber filter specifically for multigrade. It did make a big differance to the quality, I had done tests which showed the red safelight was effectively pre-exposing the paper, in a similar way to pre-flashing.

Ian
 
Last edited by a moderator:

Les McLean

Subscriber
Joined
Oct 18, 2002
Messages
1,607
Location
Northern Eng
Shooter
Multi Format
You need the Ilford 902 amber filter with Ilford paper otherwise there is a strong chance that you will fog paper. As has already been said you must carry out a safelight test and do it at least once every year for filters do fade and becaome less effective. I have several safelights with Ilford 902 filters in them but I also have two safelights with red filters in them to be used when I am printing with some other papers, the only Kodak paper I use is a dwindling stock of the now discontinued Ektalure and I use a red filter for that.
 

dr bob

Member
Joined
Sep 7, 2002
Messages
870
Location
Annapolis, M
Shooter
Medium Format
I ran a load of Ilford RC last night with no obvious problems. I use an OC light near the enlarger and a red light bulb at the sink.
 
OP
OP
David Ruby

David Ruby

Member
Joined
Sep 17, 2003
Messages
203
Location
Boise, Idaho
Shooter
Multi Format
Ilford902 /Kodak OC

Les McLean said:
You need the Ilford 902 amber filter with Ilford paper .

Since I now use Kodak OC filter's in their bullet style safelights, I'm just guessing that Ilfords 902 filter doesn't necessarily come to fit this style of safelight right?

I was planning on doing tests anyway, I guess I was just trying to figure out if someone already knew that the OC lights didn't work. Since I'm getting contradictory information, I'll really have to test now!! Thanks all.
 
Photrio.com contains affiliate links to products. We may receive a commission for purchases made through these links.
To read our full affiliate disclosure statement please click Here.

PHOTRIO PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Ilford ADOX Freestyle Photographic Stearman Press Weldon Color Lab Blue Moon Camera & Machine
Top Bottom