Why does the Fuji 23/1.4 have the effective DOF of a 35/2.8?

Started Feb 1, 2014 | Discussions thread
Shop cameras & lenses ▾
ForumParentFirstPrevious
Flat view
David McGaughey Senior Member • Posts: 2,246
Why does the Fuji 23/1.4 have the effective DOF of a 35/2.8?
3

Mathematically/optically/physically, the 23/1.4 should have the effective DOF of around a 35/2.1 on a full-frame system.

But in practice, it seems to be closer to a 35/2.8.

Steve Huff did a quick comparison between the 23/1.4 on an X-E2 and the 35/2.8 on a Sony A7. They look virtually identical.

http://www.stevehuffphoto.com/2014/01/21/24-hours-with-the-fuji-x-e2-and-23-1-4-a-quick-review-by-steve-huff/

avanbeek/Andrew VanBeek did a comparison between the 23/1.4 on an X-E2 and the 35/1.4 on a Canon 5DIII. The 35/1.4 stopped down to f/2 on the 5DIII had substantially less DOF.

http://andrewvanbeek.com/fuji-x-lenses-and-full-frame/

So, why is this?

Canon EOS 5D Mark III Fujifilm X-E2 Sony Alpha 7
If you believe there are incorrect tags, please send us this post using our feedback form.
ForumParentFirstPrevious
Flat view
Post (hide subjects) Posted by
Arn
(unknown member)
(unknown member)
tko
ForumParentFirstPrevious
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow