Hi there!

As you may have noticed opticallimits.com is free-of-charge and there is no plan to change that at the moment.

However, financially it's not an effortless operation, of course. The costs include ...

• rental fees for multiple webservers
• rental fees for photo equipment and shipping costs
• about 20% of the tested equipment is actually purchased in normal shops out there. We've only minimal relationships with a few manufacturers.
• testing equipment (studio equipment, charts, software, hardware, etc. pp)

If you think that it is worth to keep the site up and kicking, you're most welcome to send a donation via PayPal. PayPal accepts most major credit cards.

Using PayPal you can transfer a donation to a specific person as simple as specifying a target email address ( This e-mail address is being protected from spambots. You need JavaScript enabled to view it ) in the "Send Money" section of PayPal.com or, even easier, just click on the button below to start the donation process - it's easy!

Please note that OpticalLimits is a registered non-profit society so we cannot send out tax-deductible certificates. We may not be able to thank you personally but rest assured that your support is highly appreciated!

The opticallimits.com Team