09-30-2019, 01:01 AM
An iphone would be useful for afocal astrophotagraphy, however, there's no getting over the fact that comparing the light gathering ability of two optical systems is equal to the square of the ratio of the apertures.
Which means that a 35mm film camera loaded up with an ISO 100 film would be a better tool for the job.
The diameter of the lens in the iPhone is I'm sure even less than the (up to) 7mm pupil of the dark adapted human eye.
;-)
Which means that a 35mm film camera loaded up with an ISO 100 film would be a better tool for the job.
The diameter of the lens in the iPhone is I'm sure even less than the (up to) 7mm pupil of the dark adapted human eye.
;-)