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  Previous versions of stargazer78's message #8156339 « New Sigma 85mm f1.4 (and more!) »
  

stargazer78
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New Sigma 85mm f1.4 (and more!)


Lenses for full frame:

  1. 85mm f/1.4 EX HSM
  2. 70-200mm f/2.8 EX OS HSM
  3. 50-500mm f/4.5-6.3 OS HSM



Lenses for APS-C format:

  1. 8-16mm f/4.5-5.6 DC HSM
  2. 17-50mm f/2.8 DC OS HSM

Interesting that neither the 8-16mm nor the 50-500mm lens has the EX designation.



Comparison of Sigma\'s MTF charts for older & newer lenses:





























































Edit: Links have been updated


Feb 20, 2010 at 07:29 PM
stargazer78
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New Sigma 85mm f1.4 (and more!)


Lenses for full frame:

  1. 85mm f/1.4 EX HSM
  2. 70-200mm f/2.8 EX OS HSM
  3. 50-500mm f/4.5-6.3 OS HSM



Lenses for APS-C format:

  1. 8-16mm f/4.5-5.6 DC HSM
  2. 17-50mm f/2.8 DC OS HSM


All the specs are found in the link. Interesting that neither the 8-16mm nor the 50-500mm lens has the EX designation.


Comparison of Sigma\'s MTF charts for older & newer lenses:





























































Edit: Links have been updated


Feb 20, 2010 at 07:28 PM
stargazer78
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Upload & Sell: Off
New Sigma 85mm f1.4 (and more!)


Lenses for full frame:

  1. 85mm f/1.4 EX HSM
  2. 70-200mm f/2.8 EX OS HSM
  3. 50-500mm f/4.5-6.3 OS HSM



Lenses for APS-C format:

  1. 8-16mm f/4.5-5.6 DC HSM
  2. 17-50mm f/2.8 DC OS HSM


All the specs are found in the link. Interesting that neither the 8-16mm nor the 50-500mm lens has the EX designation. Optical quality would probably be mediocre at best.

Comparison of the Sigma 50mm and 85mm MTF charts...








Edit: Links have been updated


Feb 20, 2010 at 06:08 PM
stargazer78
Offline
Upload & Sell: Off
New Sigma 85mm f1.4 (and more!)


Lenses for full frame:

  1. 85mm f/1.4 EX HSM
  2. 70-200mm f/2.8 EX OS HSM
  3. 50-500mm f/4.5-6.3 OS HSM



Lenses for APS-C format:

  1. 8-16mm f/4.5-5.6 DC HSM
  2. 17-50mm f/2.8 DC OS HSM


All the specs are found in the link. Interesting that neither the 8-16mm nor the 50-500mm lens has the EX designation. Optical quality would probably be mediocre at best.

Comparison of the Sigma 50mm and 85mm MTF charts...
Feb 20, 2010 at 05:17 PM
stargazer78
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Upload & Sell: Off
New Sigma 85mm f1.4 (and more!)


Lenses for full frame:

  1. 85mm f/1.4 EX HSM
  2. 70-200mm f/2.8 EX OS HSM
  3. 50-500mm f/4.5-6.3 OS HSM



Lenses for APS-C format:

  1. 8-16mm f/4.5-5.6 DC HSM
  2. 17-50mm f/2.8 DC OS HSM


All the specs are found in the link. Interesting that neither the 8-16mm nor the 50-500mm lens has the EX designation. Optical quality would probably be mediocre at best.
Feb 20, 2010 at 05:01 PM
stargazer78
Offline
Upload & Sell: Off
New Sigma 85mm f1.4 (and more!)


Lenses for full frame:

  1. 85mm f/1.4 EX HSM
  2. 70-200mm f/2.8 EX OS HSM
  3. 50-500mm f/4.5-6.3 OS HSM



Lenses for APS-C format:

  1. 8-16mm f/4.5-5.6 DC HSM
  2. 7-50mm f/2.8 DC OS HSM


All the specs are found in the link. Interesting that neither the 8-16mm nor the 50-500mm lens has the EX designation. Optical quality would probably be mediocre at best.
Feb 20, 2010 at 04:59 PM
stargazer78
Offline
Upload & Sell: Off
New Sigma 85mm f1.4 (and more!)


Lenses for full frame:

  1. 85mm f/1.4 EX HSM
  2. 70-200mm f/2.8 EX OS HSM
  3. 50-500mm f/4.5-6.3 OS HSM



Lenses for APS-C format:

  1. 8-16mm f/4.5-5.6 DC HSM
  2. http://www.sigma-photo.fr/site/boutique/FicheProduit.aspx?idGenerique=0000128&idTypeProduit=0000030]17-50mm f/2.8 EX DC OS HSM[/url]


All the specs are found in the link. Interesting that neither the 8-16mm nor the 50-500mm lens has the EX designation. Optical quality would probably be mediocre at best.
Feb 20, 2010 at 04:49 PM





  Previous versions of stargazer78's message #8156339 « New Sigma 85mm f1.4 (and more!) »