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New Lenses from Olympus Coming
#9
On 180 degree diagonals, Canon and Sigma both seem to think 15mm is needed on FF. It gets more complicated in APS-C land. For example, we have the Samyang 8mm, and I see there's also a Sigma 10mm diagonal fisheye. Perhaps there's something in the way effective focal lengths are calculated (particularly with distortion) which means it is less clear cut. A nominal 9mm isn't too far out of the ball park. Based on the other cap lens, it is likely to be cheap and not the highest quality.

 

If anyone wants to bother, what would be a ball park hyperfocal distance for such a lens?

<a class="bbc_url" href="http://snowporing.deviantart.com/">dA</a> Canon 7D2, 7D, 5D2, 600D, 450D, 300D IR modified, 1D, EF-S 10-18, 15-85, EF 35/2, 85/1.8, 135/2, 70-300L, 100-400L, MP-E65, Zeiss 2/50, Sigma 150 macro, 120-300/2.8, Samyang 8mm fisheye, Olympus E-P1, Panasonic 20/1.7, Sony HX9V, Fuji X100.
  


Messages In This Thread
New Lenses from Olympus Coming - by frank - 01-16-2014, 09:35 AM
New Lenses from Olympus Coming - by Guest - 01-16-2014, 02:42 PM
New Lenses from Olympus Coming - by Sylvain - 01-16-2014, 02:43 PM
New Lenses from Olympus Coming - by frank - 01-17-2014, 12:47 AM
New Lenses from Olympus Coming - by Klaus - 01-17-2014, 01:17 AM
New Lenses from Olympus Coming - by popo - 01-17-2014, 08:56 AM
New Lenses from Olympus Coming - by Brightcolours - 01-17-2014, 09:56 AM
New Lenses from Olympus Coming - by frank - 01-17-2014, 11:14 AM
New Lenses from Olympus Coming - by popo - 01-17-2014, 12:53 PM
New Lenses from Olympus Coming - by frank - 01-17-2014, 01:01 PM
New Lenses from Olympus Coming - by Brightcolours - 01-17-2014, 01:27 PM
New Lenses from Olympus Coming - by popo - 01-17-2014, 06:37 PM
New Lenses from Olympus Coming - by frank - 01-29-2014, 06:30 AM

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