Support
Frequently Asked Questions
Everything you need to know to succeed with your prints.
Getting started
What precautions should I take?
VP formulations are dichromate-free. Read the safety information for each product, prepare your workspace and use the indicated protection before handling it.
Do I need a darkroom?
No! That's one of our main advantages. Our processes use low light-sensitivity solutions. You can prepare your supports under normal ambient light. Only the final exposure requires a UV source (Luminograph or sunlight).
How long does it take to make a print?
Allow for preparation, exposure, development and drying. The time varies according to the process, format and your working method.
What equipment do I need at home?
Requirements vary by process. Each box page lists its contents and the additions to select, such as support, negative film or tools.
Products & Orders
Where should I start?
Cyanotype is an accessible starting point. Then select paper, film and tools for your project; the Luminograph A4 provides a repeatable UV source.
How do I build my workshop?
The shop lets you select each element separately: chemistry, support, negative film, tools and UV source. Product pages specify compatibility and each box’s contents.
Can I buy just the supplies?
Yes, refills (solutions, pigments, papers) are available in our shop. You can order supplies separately at any time.
Do you ship internationally?
We ship throughout the European Union. Free shipping in mainland France for orders over €75. For other destinations, contact us.
Technique
What types of images work best?
Images with good contrast give the best results: portraits, landscapes, still lifes. Avoid images that are too uniform or too detailed. Our calibration workflow automatically optimizes your file.
What surfaces can I print on?
The support depends on the process. Check the chosen chemistry page and the process page to select compatible paper or support.
My print is too light / too dark, what should I do?
Exposure time is the key variable. Too light = insufficient exposure time. Too dark = overexposure. Our guide includes a test chart to calibrate your setup. Also check our Troubleshooting page.
Are prints permanent?
Yes, with proper care. Avoid prolonged direct intense sunlight. Framed under glass with UV protection, your prints will last decades.
Luminograph
What is the Luminograph?
It's our UV exposure unit designed specifically for alternative prints. It provides a calibrated, uniform UV source for reproducible results, unlike sunlight which varies with weather and time of day.
Can I use sunlight instead?
Absolutely! All our processes work with sunlight. The Luminograph simply offers more control and reproducibility. Perfect for cloudy days or night work.
What's the difference between A4 and A3+?
The A4 Luminograph accommodates prints up to 21 × 29.7 cm. The A3+ goes up to 32 × 48 cm, with a wider 60 W LED board and a two-arm press. Under identical printing conditions, exposure times are the same: the 60 W cover a larger surface, they do not shine brighter.