Library Hall, Philadelphia, Pennsylvania, US
date camera Apple iPhone 3GS lens @ 3.9mm exposure f/2.8 1/1250s ISO 70 location Library Hall, Philadelphia, Pennsylvania, US copyright ©2010 Clyde Charles Brown www.FollowTheLight.gallery license CC BY-SA sizes 640 × 480
| 960 × 720
| 1920 × 1440
| 2048 × 1536
| date | |
| camera | Apple iPhone 3GS |
| lens | @ 3.9mm |
| exposure | f/2.8 1/1250s ISO 70 |
| location | Library Hall, Philadelphia, Pennsylvania, US |
| copyright | ©2010 Clyde Charles Brown www.FollowTheLight.gallery |
| license | CC BY-SA |
| sizes | 640 × 480 | 960 × 720 | 1920 × 1440 | 2048 × 1536 |
02153BD1B129D2924BF866B0966AA452 American Philosophical Society Library Q37731370