Well if you have plenty of light this doesn't matter. The wide is supposedly f1.8 while the telephoto is supposedly f2.8. the wide has pixels 4 times bigger, s

Well if you have plenty of light this doesn't matter. The wide is supposedly f1.8 while the telephoto is supposedly f2.8. the wide has pixels 4 times bigger, so the effective sensor size is about 2/3 on the wide for this field of view. So I think the telephoto gets roughly half the light as the wide if I'm doing mental math correctly.