1. Thanks. 2. Thanks a lot. 3. Thank you so much. 4. Thanks a million! 5. Thanks for your help. / Thanks for helping me. 6. I really appreciate it. 7. I'm really grateful. 8. That's so kind of you. 9. I can't thank you enough. (for extremely important things) 10. I owe you one. (this means you want/need to do a favor for the other person in the future)
Aperture controls the brightness of the image that passes through the lens and falls on the image sensor. It is expressed as an f-number such as f/2, f/8 etc. Lower the f-number, the larger the aperture and more light that passes through the lens. For example, changing the aperture from f/4 to f/5.6 halves the amount of light passing through the lens and halves the brightness of the image that falls on the image sensor.