| Author | Thread |
|
|
08/26/2015 12:41:25 PM · #1 |
Exciting news for Canon shooters.
Link |
|
|
|
08/26/2015 01:32:31 PM · #2 |
Don't get too excited. Here's why:
- A FF lens only projects an image circle slightly larger than the diagonal dimension of the sensor (about 43mm). Any shift or tilt will result in dark corners
- The hypothetical adapter apparently contains no glass, so there is no compensation for the extension. That means no focusing to infinity on an EOS body.
The adapter *would* be very useful on an EOS-M body, where the flange distance is so much smaller, and the smaller sensor gives room in the image circle for tilt and shift.
|
|
|
|
08/26/2015 01:53:17 PM · #3 |
Originally posted by kirbic:
The adapter *would* be very useful on an EOS-M body, where the flange distance is so much smaller, and the smaller sensor gives room in the image circle for tilt and shift. |
or using an EF-S body and EF glass? |
|
|
|
08/26/2015 02:09:43 PM · #4 |
Originally posted by Mike:
Originally posted by kirbic:
The adapter *would* be very useful on an EOS-M body, where the flange distance is so much smaller, and the smaller sensor gives room in the image circle for tilt and shift. |
or using an EF-S body and EF glass? |
Not unless you want macro only. The EF-S flange distance is the same as for EF.
|
|
|
|
08/26/2015 02:21:35 PM · #5 |
but the projected image circle is bigger than the sensor is it not when you use EF Glass?
Message edited by author 2015-08-26 14:22:15. |
|
|
|
08/26/2015 04:07:55 PM · #6 |
Originally posted by Mike:
but the projected image circle is bigger than the sensor is it not when you use EF Glass? |
Oh, for sure. In the case of an APS-C sensor with an EF lens, you've got an image circle a minimum of 43.2mm in diameter (to cover the 36mm x 24mm frame), and a sensor that is about 22.5mm x 15.0mm. The available shift is about 18mm horizontally, and 22mm vertically.
|
|
|
|
08/26/2015 04:31:17 PM · #7 |
| As for now I'm happy with my own T&S page, but perhaps it's a nice addition. |
|
|
|
08/26/2015 05:12:23 PM · #8 |
Originally posted by hajeka:
As for now I'm happy with my own T&S page, but perhaps it's a nice addition. |
Very nice. It says there are 14 owners of the lens, but you are clearly owning that page. |
|
Home -
Challenges -
Community -
League -
Photos -
Cameras -
Lenses -
Learn -
Help -
Terms of Use -
Privacy -
Top ^
DPChallenge, and website content and design, Copyright © 2001-2025 Challenging Technologies, LLC.
All digital photo copyrights belong to the photographers and may not be used without permission.
Current Server Time: 07/22/2025 12:28:11 PM EDT.
