via Personal View.
Two readers and Digitfoto had a talk with the guys from the German B.IG. company that developed the BIG shift lens. They confirmed that the lens is indeed directly based on the [shoplink 33839 ebay]Voigtlander Heliar 15mm f/4.5 (here on eBay)[/shoplink].
Reminder…these are the specs:
| Specifications BIG Shift Lens 4,5 / 15 mm MFT | |
| Focal length | 15 mm (equivalent to 30 mm film) |
| Luminosity | 4.5 |
| Minimum aperture | 22 |
| Lens construction | 8 elements in 6 groups |
| Focus Limit | 50 cm |
| Diameter | 65 mm |
| Length | 45.5 mm |
| Weight | 200 g |
| Filter thread | 52 mm |
| Lens hood | integrated |
| Price | 999, – |