Opticallimits
next PZ lens test report: Canon EF-S 10-18mm f/4.5-5.6 IS STM - Printable Version

+- Opticallimits (https://forum.opticallimits.com)
+-- Forum: Forums (https://forum.opticallimits.com/forumdisplay.php?fid=4)
+--- Forum: Canon EOS (https://forum.opticallimits.com/forumdisplay.php?fid=11)
+--- Thread: next PZ lens test report: Canon EF-S 10-18mm f/4.5-5.6 IS STM (/showthread.php?tid=1470)

Pages: 1 2


next PZ lens test report: Canon EF-S 10-18mm f/4.5-5.6 IS STM - Klaus - 06-06-2014

Well, the mirrorless gang has to design telecentric lensed - otherwise things get messy. And that comes at a cost.

The Canon lens is pretty much unique anyway.


next PZ lens test report: Canon EF-S 10-18mm f/4.5-5.6 IS STM - toni-a - 06-06-2014

I read your comments and can't wait to put my hands on my sample Smile

I should hopefully have it by tomorrow..... Rolleyes




next PZ lens test report: Canon EF-S 10-18mm f/4.5-5.6 IS STM - Brightcolours - 06-06-2014

Quote:Well, the mirrorless gang has to design telecentric lensed - otherwise things get messy. And that comes at a cost.

The Canon lens is pretty much unique anyway.
Is that reversed telecentric? On a DSLR you have to do that too, don't you, with short focal lengths (due to bigger flange distance)?

The Canon has 14 elements, the Sony 10:

[Image: lens-construction.png]

[Image: Sony-E-10-18mm-f4-OSS-Lens-Construction-...-Chart.jpg]

 

By the way, the Canon EF-M 11-22mm IS STM is a pretty good wide angle zoom too, and pretty cheap too.



next PZ lens test report: Canon EF-S 10-18mm f/4.5-5.6 IS STM - Klaus - 06-07-2014

Well, due to the longer distance from mount to sensor, the issue is eased on DSLRs to start with.

Now if you ask me which ultra-wide lens has a telecentric design I couldn't tell honestly. :-)