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Sigma 50-100mm f/1.8 HSM DC ART ...
#20
Quote:This is an APS-C lens with an APS-C image circle - you may argue with 1.55x or 1.6x there but that's about it.
 

1.6 to 1.34! The lens also covers the new Sigma Foveon APS-H. 

 

You were referring to the lens, not to the limits or crop factor of Canon APS-C size. Ignoring the speed of the lens, which is the reason for it's size, price and weight is the result of this silly equivalence games.

 

You also would not "equivalent" a remote controlled model racing car going up to 100 km/h to be 2000 km/h fast because the genuine "FF"-car model is 20 times bigger. 100 km/h = 100 km/h.

 

Also, FF is just one of many sensor sizes. Given the amount of phone cameras and their sensor sizes, there's no reason to declare FF to a reference. Not many of today's daily camera users ever took pictures on film - or full frame cameras, which are NOT the center of photographic world anymore. So, I think it's better to use the true specifications and not equivalence numbers.

  


Messages In This Thread
Sigma 50-100mm f/1.8 HSM DC ART ... - by Klaus - 06-07-2017, 11:19 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by toni-a - 06-07-2017, 11:42 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Rover - 06-07-2017, 01:56 PM
Sigma 50-100mm f/1.8 HSM DC ART ... - by JJ_SO - 06-07-2017, 01:59 PM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Rover - 06-07-2017, 02:02 PM
Sigma 50-100mm f/1.8 HSM DC ART ... - by JJ_SO - 06-07-2017, 02:30 PM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Rover - 06-07-2017, 03:06 PM
Sigma 50-100mm f/1.8 HSM DC ART ... - by JJ_SO - 06-07-2017, 04:18 PM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Klaus - 06-07-2017, 10:30 PM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Guest - 06-08-2017, 12:01 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Klaus - 06-08-2017, 06:27 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by toni-a - 06-08-2017, 06:31 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Klaus - 06-08-2017, 07:19 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by JJ_SO - 06-08-2017, 07:27 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Klaus - 06-08-2017, 08:48 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by JJ_SO - 06-08-2017, 09:30 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Klaus - 06-08-2017, 09:30 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Rover - 06-08-2017, 09:33 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Klaus - 06-08-2017, 09:34 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by JJ_SO - 06-08-2017, 09:34 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Klaus - 06-08-2017, 09:36 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by JJ_SO - 06-08-2017, 09:45 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Rover - 06-08-2017, 10:16 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by toni-a - 06-08-2017, 12:44 PM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Klaus - 06-08-2017, 02:04 PM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Rover - 06-08-2017, 03:39 PM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Klaus - 06-14-2017, 11:36 PM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Rover - 06-15-2017, 09:42 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Paul1980 - 06-09-2017, 08:47 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by JJ_SO - 06-09-2017, 09:18 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Klaus - 06-09-2017, 09:39 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by JJ_SO - 06-09-2017, 09:48 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Rover - 06-09-2017, 10:43 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by JJ_SO - 06-09-2017, 11:01 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Rover - 06-09-2017, 01:46 PM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Klaus - 06-10-2017, 02:19 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Klaus - 06-10-2017, 02:21 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by JJ_SO - 06-10-2017, 07:47 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Rover - 06-10-2017, 09:11 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Klaus - 06-10-2017, 09:19 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Rover - 06-10-2017, 09:33 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Klaus - 06-10-2017, 10:21 AM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Rover - 06-10-2017, 09:15 PM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Klaus - 06-10-2017, 11:59 PM
Sigma 50-100mm f/1.8 HSM DC ART ... - by Klaus - 06-11-2017, 12:00 AM

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