1. What is the stock portal of the company Gigapixel GmbH?
Gigapixel's stock portal is an extensive collection of extremely high-resolution photographs. All images on the portal have a resolution of 100 megapixels or more. In comparison, conventional images taken with a normal full-frame camera usually have a maximum resolution of 30 megapixels (subject limited by diffraction).
On the stock portal you can purchase all photographs as files.
The high-resolution images on the Gigapixel stock portal are ideal for large-format prints with impressive detail. They are therefore particularly suitable for decorating exhibition stands, interiors, murals, awnings, truck tarpaulins, glass walls, giant puzzles, stretch ceilings and photo wallpapers.

2. How can I purchase images on www.Gigapixel.GmbH?
You can purchase images on Gigapixel's website by using the search bar to find a desired motif. After you have selected and viewed the motif, you can move it to the shopping cart. Once you are done with your selection, you can complete the purchase and will receive a download link via email after the receipt of money is confirmed.

3. Is it possible to become a member of the stock portal in the form of an account?
No, Gigapixel has chosen to collect as little data as possible. However, all relevant data can be entered in the order process. However, no account is required to use all the functions of the website.

4. what licenses can be purchased for the images?
The stock portal of Gigapixel offers a variety of licenses. You can find an overview of these licenses under the menu item "Licenses". If you cannot find a suitable license, you can simply contact Gigapixel and specify what type of license you need. The team will be happy to make you an appropriate offer.

5. May the images be edited/modified?
All images purchased on the stock portal website may be edited or modified as you wish and need. The licenses only regulate the number of uses and prints. The rest is up to your discretion on how much you want to change the image. The number of licenses purchased does not change, even if the image is heavily modified.

6. May I resell purchased images?
You are of course allowed to resell the images you have purchased as long as you do not exceed the number of licenses purchased for the respective image.

7. What to do if you can't find a suitable motif in the stock portal?
If you do not find a suitable motif, you are welcome to contact us. We will be happy to make you an offer for a customized commissioned work. Alternatively, if your project offers sufficient lead time, we can submit your request without obligation to our network of photographers to search for suitable images.

8. what is the difference between PPI and DPI?
The most common mistake is to equate ppi with dpi. PPI stands for "pixels per inch" and means that each pixel has a specific color information. DPI, on the other hand, stands for "dots per inch" and describes how a printer puts dots of color together to "simulate" color. The absorption of the color by the substrate also plays a role, and the dots may be slightly larger due to "gradient". The printer is independent of the resolution of the image. A single pixel can easily be printed at 1440 dpi, as DPI only indicates the technical capability of the printer. To understand ppi and dpi: Most prints can reproduce an information density of 70-150 ppi on the substrate. If you want a higher information density on the substrate, it is a special requirement. This was a simplified attempt to explain the difference between dpi and ppi. The human eye can resolve about 350 ppi.

9) How does the viewing distance affect the resolution of the image?
Resolution and viewing distance are related. The human eye can only detect a certain maximum resolution at a certain distance, so two dots do not appear as a single dot. To calculate the required resolution, use the following formula: Resolution in ppi = 1 inch in meters / (tan(eye resolution) x viewing distance). For example, for a viewing distance of 0.5 m, this gives: 0.0254 m (inches in meters) / (tan 0.0083 (half minute of arc) x 0.5 m (viewing distance)) = approximately 350 ppi. Here's a list of minimum resolutions for images to be absolutely sharp at the viewing distance: 0.5 m --> 350 ppi, 1 m --> 175 ppi, 2 m --> 90 ppi, 3 m --> 60 ppi. Note, however, that conventional printing methods can usually print a maximum of 240 ppi, resulting in a minimum viewing distance of about 0.73 m for printed images.

0.5m -->350ppi
1m --> 175ppi
2m --> 90ppi
3m --> 60ppi

10. Diffraction is real culprit!
Diffraction is a crucial factor in digital photography that is often underestimated. Camera manufacturers often advertise high-resolution sensors, but these can only perform to their full potential in certain situations and often serve more for marketing than reality. If we disregard all other influences (which further degrade quality), a full-frame camera (35mm format 24x36 mm) can only transfer about 30 megapixels of information to the sensor at an aperture of 8, due to diffraction. At aperture 11, it would be 15 megapixels and at aperture 16, only 7.5 megapixels. Conversely, the resolution increases with a smaller f-stop. At aperture 5.6, it would be 60 megapixels and at aperture 4 even 121 megapixels. You might now think that setting the aperture to a maximum of 5.6 on a 50 megapixel 35 mm camera would be sufficient. However, there are two problems with this. The lesser problem nowadays is the optimal sharpness of the lens, since this is technically well solved and offers a relatively even performance over several f-stops. The bigger problem is that with higher resolution, the depth of field area becomes smaller, especially for close subjects. Unless you are near the infinity focus of the lens, the depth of field area becomes too small when using a small f-number. This inevitably leads to the use of focus stacking to achieve a greater depth of field, which in turn introduces other problems (motion blur, for example). Alternatively, you can reduce the size of the image, but then you almost could have saved the huge mountain of data of the high resolution (reducing the size of a high resolution image always leads to an increase in quality compared to a 100% original size image). This is to illustrate why images often look bad even though you think you have a sufficiently high-resolution camera. If you have any questions about this topic, we will be happy to help. Please do not hesitate to contact us. Here are some approximations for diffraction and sensor size at f/8:

- Compact 2/3" (7x9 mm): 2.2 megapixels
- Micro Four Thirds (13x17 mm): 8 megapixels
- APS-C (16x17 mm): 13.5 megapixels
- Small format (24x36 mm): 30 megapixels
- Medium format small (30x45 mm): 47 megapixels
- Medium format large (40x53 mm): 76 megapixels

The bottom line from this information is that there is not, nor will there be, a commercially available camera that can even come close to the resolution of the above high-resolution images at f/8 with a single frame, unless there is a fundamental innovation in physics.