Terms of Service — General Conditions of Sale

1. Seller Identification

2. Product Description

DUSK LAB is a professional black-and-white photography development software application. It provides Zone System controls, film simulation, chemical toning, grain engine, professional framing, and export capabilities for discerning photographers.

3. License Grant

Upon valid purchase, Deep-5 grants you a:

You may install and use DUSK LAB on multiple devices that you personally own or control, provided that you are the sole user. For the complete license terms, please refer to the End User License Agreement (EULA).

4. Pricing and Payment

4.1 Price

The DUSK LAB perpetual license is sold at a price of €129 EUR (one hundred twenty-nine euros), inclusive of applicable taxes. This price is valid as of the date shown at the top of this document. Deep-5 reserves the right to modify the price at any time; however, any price change will not affect licenses already purchased.

4.2 Payment Processing

All payments are processed by Lemon Squeezy, which acts as the merchant of record. Lemon Squeezy handles payment processing, invoicing, VAT collection and remittance, and refund processing. By completing a purchase, you also agree to Lemon Squeezy's terms of service. Deep-5 does not directly handle or store your payment information.

4.3 Invoicing

An invoice will be issued electronically by Lemon Squeezy and sent to the email address provided at the time of purchase. This invoice constitutes proof of purchase and is required to exercise your warranty or withdrawal rights.

5. Free Trial

Deep-5 offers a 15-day free trial of DUSK LAB. The trial provides access to the full functionality of the software. No payment information is required to begin the trial. At the end of the trial period, you must purchase a license to continue using the software.

6. Right of Withdrawal

In accordance with the EU Consumer Rights Directive 2011/83/EU (transposed into French law under Articles L.221-18 to L.221-28 of the French Consumer Code), you have the right to withdraw from your purchase within 14 calendar days of the date of purchase, without giving any reason.

Conditions for withdrawal:

To exercise the right of withdrawal, contact us at contact@deep-5.com with your order reference number. If eligible, the refund will be processed through Lemon Squeezy within 14 days of receiving your withdrawal request, using the same payment method used for the original purchase.

7. Intellectual Property

DUSK LAB, including but not limited to its source code, object code, architecture, design, user interface, documentation, logos, trademarks, and all associated intellectual property, is and remains the exclusive property of Deep-5 SAS. The purchase of a license does not transfer any ownership rights in the software to you.

All content created by you using DUSK LAB (photographs, project files, exports) remains your exclusive property. Deep-5 claims no rights over your creative work.

8. Updates and Support

8.1 Software Updates

Your perpetual license includes all updates within the current major version of DUSK LAB (e.g., all 1.x updates if you purchased version 1.0). Major version upgrades (e.g., from 1.x to 2.0) may require an additional purchase at a discounted upgrade price.

8.2 Technical Support

Deep-5 provides email-based technical support for licensed users. Support covers installation issues, activation problems, and software defects. Support does not include general photography training, hardware troubleshooting, or third-party software compatibility beyond documented system requirements.

9. Warranty

In accordance with Article L.217-3 of the French Consumer Code, the software is covered by the legal warranty of conformity (garantie légale de conformité) for a period of two (2) years from the date of delivery. During this period, Deep-5 undertakes to provide updates to correct defects affecting the conformity of the software.

Beyond the legal warranty, the software is provided "as is". Deep-5 does not warrant that the software will meet all your specific requirements, operate without interruption, or be entirely free of defects. Deep-5 warrants that the software will perform substantially as described in its documentation under normal use conditions.

10. Limitation of Liability

To the maximum extent permitted by applicable law:

Nothing in these Terms shall exclude or limit liability for fraud, gross negligence, personal injury, or death, or any liability that cannot be excluded under applicable law.

11. Force Majeure

Deep-5 shall not be held liable for any delay or failure to perform its obligations under these Terms if such delay or failure results from circumstances beyond its reasonable control, including but not limited to natural disasters, war, terrorism, cyberattacks, government actions, pandemic, power outage, or telecommunications failure. If a force majeure event lasts for more than 90 consecutive days, either party may terminate these Terms by written notice.

12. Termination

Your license remains valid in perpetuity, subject to compliance with these Terms and the EULA. Deep-5 may terminate your license if you materially breach these Terms and fail to cure such breach within 30 days of written notice. Upon termination, you must cease all use of the software and destroy all copies in your possession.

13. Governing Law and Jurisdiction

These Terms are governed by and construed in accordance with the laws of France. Any dispute arising out of or in connection with these Terms shall be submitted to the exclusive jurisdiction of the Tribunal de Commerce de Paris, unless otherwise required by mandatory consumer protection rules in your country of residence within the European Union.

In accordance with Article L.612-1 of the French Consumer Code, in the event of a dispute, you may also resort to a consumer mediation procedure. The competent mediator will be communicated upon request.

14. Severability

If any provision of these Terms is held to be invalid or unenforceable, the remaining provisions shall remain in full force and effect. The invalid or unenforceable provision shall be replaced by a valid provision that most closely achieves the economic purpose of the original provision.

15. Entire Agreement

These Terms, together with the EULA and Privacy Policy, constitute the entire agreement between you and Deep-5 with respect to the use and purchase of DUSK LAB. They supersede all prior or contemporaneous communications, proposals, and agreements, whether oral or written.

16. Modifications

Deep-5 reserves the right to modify these Terms at any time. Material changes will be notified by email to registered customers at least 30 days before they take effect. Continued use of the software after the effective date constitutes acceptance of the modified Terms.

17. Contact

For any questions regarding these Terms of Service, please contact: