LED COLD LIGHT SOURCE
Replace the existing light source in your magnifying device with a modern LED panel light that offers long-term stability. Heiland Vision will supply the necessary customization.
By using selected LEDs in the primary colors red, green, and blue, it is possible to generate both white light for focusing and any other color. Exposure can be carried out with mixed light, as with a classic color or multigrade device, or with split exposure. This allows exposure of all classic color and black-and-white papers.
The light source is operated with a highly stable 24V power supply and can be switched on and off in less than 1/100s. This ensures that exposure is reproducible – even without a shutter.
Advantages at a glance
No light drift: Stable light from the first tenth of a second guarantees reproducible enlargement.
No fan required up to a size of 8×10 inches. This enables vibration-free and silent enlargement without dust swirling.
For BW enlargements, the red light function can be used to position paper and tools for dodging and then expose them directly.
Full contrast control from gradation 00 to 5.
Minimal heating of the negative prevents focus deviations.
Extremely exposure-effective light enables shorter exposure times than halogen light.
Variable light intensity for different enlargement scales.
Lamp replacement is no longer necessary.
White light makes focusing easier.
Uniform illumination right into the corners. Lens-related edge light falloff can be compensated for with an optional center filter.
The ideal solution for archives – no thermal stress on glass plate negatives.
Durable, solid metal construction.
Device variants
The LED cold light source is available for almost all enlargers on the market. There are also replacements for cold light sources based on fluorescent tubes. We manufacture adapters for more than 60 devices from the following brands.
The necessary adapter is manufactured by Heiland Vision. This allows you to install the light source in just a few minutes. On request, you can also obtain reduced-price versions without adapters. We supply cold light sources for enlargers ranging from 35mm format to the ultra-large format of 20×24 inches.
LED for Agfa
LED for Aristo 4500
LED for Beseler
LED for DeVere
LED for Dunco
LED for Durst
LED for Fujimoto
LED for Homrich VA 250
LED for IFF 4×5″
LED for Jobo 4×5″
LED for Kaiser
LED for Kienzle
LED for Leitz
LED for Linhof 5×7″
LED for LPL 4×5
LED for Meopta
LED for Omega
LED for Saunders 4×5″
LED for Teufel
LED for Zone VI
LED without Adapter
Control units
Since the LED cold light source works with the three primary colors red, green, and blue, it is possible to use the light source for processing either black-and-white paper or color paper. We offer different control units for this purpose.
Please select your preferred control unit when ordering the light source. If you use multiple processes or working techniques, you can also order multiple control units for one LED light source.
Control unit for color processes
Price: €339
With this control unit, you can use the LED cold light source to digitize negatives and slides or to expose RA4 color papers such as Fuji Crystal Archive and Kodak Endura.
Filtering can be either additive (red, green, and blue) or subtractive (yellow, magenta, cyan).
The light color can be adjusted reproducibly using rotary knobs with detents. The color intensity is displayed in filter values from 0 to 400 on a yellow LCD. White light for focusing is activated at the touch of a button.
The intensity of the exposure can be varied within a range of 2 f-stops.
A sophisticated, stabilized 24V power supply prevents fluctuations in LED intensity when the mains voltage changes.
Time control is via an optional timer or an optional color analyzer. We supply the appropriate plug adapter.
Control unit for BW processes with timer
Price: €339
Time control with timer or analyzer for black-and-white processes
If you already have a timer, it can be used to control the LED cold light source.
The control supports 3 operating modes:
- White light for focusing
- Multigrade for exposure in the gradation range 00 to 5
- Red light for adjusting or placing dodging movements
The intensity of the light source can be dimmed in the range from 0 to -4 f-stops.
All values are displayed on a large red LCD display and can be set reproducibly using rotary knobs with detents.
A complex stabilized 24V power supply prevents intensity fluctuations of the LEDs when the mains voltage changes.
Fixed gradation paper can be exposed in white light mode.
Control unit for BW processes with splitgrade
Price: €1118
The world’s most convenient exposure system!
The combination of both products, SPLITGRADE + LED cold light source, offers a unique range of possibilities for enlarging.
Not only do you get a pre-calibrated and measuring system for a wide range of multigrade papers, but you can also expose fixed-grade paper. The entire work process is also extremely convenient; for example, white light for focusing is activated with just one push of a button on the Splitgrade. The exposure time and gradation are then determined in a matter of seconds.
You also have the option of choosing whether you want to work with mixed light (as with a traditional multigrade head) or with split exposure, which is favored by a large number of well-known photographers.
Furthermore, you can switch on the red light separately for positioning paper or dodging tools and start the exposure directly from the red light using the foot switch.
In addition, a shutter function is automatically included, as the LEDs switch on and off within 1/100 s.
And you can dim the exposure intensity in the range of 2 f-stops according to the enlargement scale. This provides the same functionality as a neutral density filter.
Creative enlargement is encouraged with Splitgrade and the LED cold light source – not restricted, as is sometimes claimed. The user can also select or change the exposures manually, i.e., without a light sensor.
Contact
Contact us
Do you have questions about our LED cold light sources and are unsure which product is right for you and your needs? Then simply send us a message.