Hi, Matt from Reveni Labs here.
I'm interested in designing a light meter for alternative process work, after hearing that the LIGHTMEASURE PPM2 was no longer produced. It doesn't appear there is anything that caters to alt process users specifically.
I don't have any experience with alternative processes, so I'm wondering if people would give me insights on what kind of features they'd like to have in a meter that would help them with their alt process work.
I have a list (in no particular order) of features currently on my mind:
- UV light measuring, for realtime and integrative UV readings, displayed in watts (uW,mW) per metre (centimetre) squared, and joules per metre squared.
- Visible light measuring, possibly filtered to just blue/green for ortho materials?
- Remote sensor head which can be used on or off the main meter body, for attaching to the front of a camera when doing long integrating exposures.
- Temperature/humidity sensor
- Output ports to control items like UV exposure box, enlarger, electronic shutter, relay-connected lightbulbs. Control done via an external relay or other low-voltage control method such as LED driver with an enable function. Possibly 433MHz wireless outlet control.
- Beeper/exposure level alarm
Other abilities
- Measuring UV transmittance of negatives
- Graphical plot of light levels during an exposure
- Remaining exposure time estimator
- Simple densitometer
- Enlarger exposure meter
- UV light box meter / controller. Could compensate for fluorescent UV bulbs which have slow turn-on times and ramp to maximum brightness
Other general features
- Aluminum construction
- Colour LCD screen, possibly, or OLED screen for the best outdoor viewability
- Rechargeable battery
- USB-C update feautres
- Relatively small and lightweight
Like I said, I don't have any alt process experience firsthand, so I'd like to hear about difficulties that people have with their work and what kind of things would be useful for them in a device like I have described. I'm interested in hearing what people have to say.
- Matt
I'm interested in designing a light meter for alternative process work, after hearing that the LIGHTMEASURE PPM2 was no longer produced. It doesn't appear there is anything that caters to alt process users specifically.
I don't have any experience with alternative processes, so I'm wondering if people would give me insights on what kind of features they'd like to have in a meter that would help them with their alt process work.
I have a list (in no particular order) of features currently on my mind:
- UV light measuring, for realtime and integrative UV readings, displayed in watts (uW,mW) per metre (centimetre) squared, and joules per metre squared.
- Visible light measuring, possibly filtered to just blue/green for ortho materials?
- Remote sensor head which can be used on or off the main meter body, for attaching to the front of a camera when doing long integrating exposures.
- Temperature/humidity sensor
- Output ports to control items like UV exposure box, enlarger, electronic shutter, relay-connected lightbulbs. Control done via an external relay or other low-voltage control method such as LED driver with an enable function. Possibly 433MHz wireless outlet control.
- Beeper/exposure level alarm
Other abilities
- Measuring UV transmittance of negatives
- Graphical plot of light levels during an exposure
- Remaining exposure time estimator
- Simple densitometer
- Enlarger exposure meter
- UV light box meter / controller. Could compensate for fluorescent UV bulbs which have slow turn-on times and ramp to maximum brightness
Other general features
- Aluminum construction
- Colour LCD screen, possibly, or OLED screen for the best outdoor viewability
- Rechargeable battery
- USB-C update feautres
- Relatively small and lightweight
Like I said, I don't have any alt process experience firsthand, so I'd like to hear about difficulties that people have with their work and what kind of things would be useful for them in a device like I have described. I'm interested in hearing what people have to say.
- Matt