Use of X-ray film: technical discussion with example images

[j.e.simmons]

I have the Kodak GBX-2 filter which is advertised for use with X-ray film.

[Tin Can]

THE problem is the new improved 2 Watt red LED

When we first bought them they were 1 watt

Nothing written in the box or LED

I just found a NIB 1 Watt as I bought the originals by the box

double trouble

[Daniel Unkefer]

I have the Kodak GBX-2 filter which is advertised for use with X-ray film.

Jason told me either 1A or XRAY filter with RED LED No probs at all. Put it together and test it!

Without the red Kodak filter the LED was fogging his EI 25 Dry Plates during coating.

He sent me speed plates, then told me to throw them in the trash. He replaced them with plates coated with double safe safelight

[Tin Can]

What type and wattage are you using with the Kodak filter?

At what distance, is it bounced or direct?

It is good the filter is still sold, I had a handful of damaged old ones, pinholes and worse

Kodak GBX-2 Dark Red Safelight Filter 5.5" for Blue-Sensitive X-ray Film & Green-Sensitive Medical X-ray Film

I just ordered one, I have several KODAK Bullet fixtures with 1 Watt Red LED, bounced off ceiling

I think an incandescent white 15 watt bulb was specified

Oven Bulbs!

[Daniel Unkefer]

I measured the direct light distance to make sure it was not under six feet. About 7 feet or so direct.

I suspect strongly I was told to get; what Jason linked me at the time was the older one watt variety.

The light is bright enough over the dev tray to lift the film up and clearly examine the shadows; straight replenished Microdol-X about 18 minutes typical

Low and Slow dev



Kodak 1A Grey Bullet Safelight 2 by Nokton48, on Flickr

[Daniel Unkefer]

Randy,

Here I what I using, no fog even at 25 minutes

YGA03A44-3W Red-1
120V 55ma 3W E26

I bought used 1A's and bullets on Ebay Maybe $40 each

[j.e.simmons]

I have the 15-watt bulb that came with the kodak fixture. It’s still good. Kodak says a 25-watt bulb can be used indirectly.

My tests this morning were with the leds bounced off the ceiling.

[Tin Can]

2013 Darkroom, sold the space and reduced DR size in new location

DSCN3573 by TIN CAN COLLEGE, on Flickr


DSCN3570 by TIN CAN COLLEGE, on Flickr

[Bob Wagner]

Found this, noticed a recommendation for 2.5 minute exposure limit at 4' 15 watt bulb

KODAK Safelight Filter #GBX-2, 5 1/2' Round Size, for Blue Sensitive X-Ray Films & Green Sensitive Medical X-Ray Films.
Universal safelighting for both intraoral and extraoral dental filmsThe GBX-2 (ruby red) safelight filter is a universal safelight filter that can be used in dental darkrooms where both intraoral and extraoral films are processed. A frosted bulb of 15 watts or less should be used in the safelight, which should be at least 4 feet (1.2 m) from the film.The GBX-2 safelight filter may be used in darkrooms where manual processing is performed, provided that film handling under safelight conditions is limited to approximately 2 1/2 minutes.

[Tin Can]

Found this, noticed a recommendation for 2.5 minute exposure limit at 4' 15 watt bulb

KODAK Safelight Filter #GBX-2, 5 1/2' Round Size, for Blue Sensitive X-Ray Films & Green Sensitive Medical X-Ray Films.
Universal safelighting for both intraoral and extraoral dental filmsThe GBX-2 (ruby red) safelight filter is a universal safelight filter that can be used in dental darkrooms where both intraoral and extraoral films are processed. A frosted bulb of 15 watts or less should be used in the safelight, which should be at least 4 feet (1.2 m) from the film.The GBX-2 safelight filter may be used in darkrooms where manual processing is performed, provided that film handling under safelight conditions is limited to approximately 2 1/2 minutes.

Excellent Bob!

Thank you

Overnight I found and bought 3 more VGC KODAK Bullet lamp fixtures

I will wait and see what filter they have