Fotografia makro

It doesn't matter what you use, results need to be perfect for stock usage. This is, unfortunately for you, not a photography school. We just advise people on their refusal. If you have a picture that you show us, we will comment on this. If you need a photography course, look on LinkedIn Learning. You will find many courses. You may also use other resources. Some are even free of charge available on YouTube.

If you are looking for how and what to publish on stock, follow the guidelines below.

If you are new to stock, you should consider these resources: https://helpx.adobe.com/stock/contributor/tutorials.html
Please read the contributor user manual for more information on Adobe stock contributions: https://helpx.adobe.com/stock/contributor/user-guide.html
See here for rejection reasons: https://helpx.adobe.com/stock/contributor/help/reasons-for-content-rejection.html
and especially quality and technical issues: https://helpx.adobe.com/stock/contributor/help/quality-and-technical-issues.html

it doesnt matter if you use magnifying filters or extension tubes. What is important is focus and depth of field. That it is why you must use a tripod to achieve good focus. Depth of field should be between F11 and F16. I also suggest that you do focus stackinking. Different fotos with different focal points. You can then merge the photos in photoshop.