Through glass isn't bad as long as it's 90 degrees. The biggest issue is lightning - anything you preview on the camera looks like garbage because it won't WB beyond 10kK so take a lot. Everything needs to be white balanced post. It Also tends to under expose on heavy blue so bump your EV comp a bit. Always shoot at 90 degrees and use a rubber hood.
Through glass isn't bad as long as it's 90 degrees. The biggest issue is lightning - anything you preview on the camera looks like garbage because it won't WB beyond 10kK so take a lot. Everything needs to be white balanced post. It Also tends to under expose on heavy blue so bump your EV comp a bit. Always shoot at 90 degrees and use a rubber hood.
Shot this through 10mm glass under 18,000K lighting with cheap amateur gear: https://www.reddit.com/r/ReefTank/comments/ksmz50/macro_of_my_little_yellow_rug/