Is the aperture of the lens as recorded by exif an electronic signal or an actual measurement? I ask because when using a teleconverter on a lens with max aperture of f/40 exif shows aperture f/81.
Helpful Posts: 0
Results 1 to 4 of 4
Thread: Lens Aperture
-
18th June 2017, 12:53 AM #1
- Join Date
- Dec 2009
- Location
- WNY
- Posts
- 36,716
- Real Name
- John
Lens Aperture
-
18th June 2017, 06:51 AM #2
- Join Date
- Jan 2011
- Location
- Whitburn, Sunderland
- Posts
- 2,422
- Real Name
- Robin
Re: Lens Aperture
Electronic - put a manual lens on and nothing is recorded.
-
18th June 2017, 07:59 AM #3Moderator
- Join Date
- May 2008
- Location
- Windsor, Berks, UK
- Posts
- 16,749
- Real Name
- Dave Humphries :)
Re: Lens Aperture
I agree, I assume the TC is a 1.4x losing one stop and it (I assume) is chipped in someway so that the camera (or TC) multiplies the lens' aperture by 2 before recording EXIF.
-
18th June 2017, 08:11 AM #4
- Join Date
- Dec 2009
- Location
- WNY
- Posts
- 36,716
- Real Name
- John
Re: Lens Aperture
Hi Robin and Dave,
Thanks for responding.
Reply With Quote
