Two-part Zeiss articles on "How to Read MTF Curves"

Here are links to articles for your reading pleasure. You may also submit brief reviews or discuss the contents of the articles.

Moderators: Pau, rjlittlefield, ChrisR, Chris S.

DQE
Posts: 1653
Joined: Tue Jul 08, 2008 1:33 pm
Location: near Portland, Maine, USA

Two-part Zeiss articles on "How to Read MTF Curves"

Post by DQE »

I generally have reservations about most published lens MTF curves since they usually aren't documented as to being theoretically calculated vs measured. Also, if measured, were they measured by a specific method or recognized standard? Interpretation is also a challenge since these data for lenses are usually complex curves in tangential (aka radial) and sagittal (aka meridional) directions. And then they are functions of the lens aperture, wavelength, etc. Still, with experience and understanding, the curves should describe image blur due to light spread in the lens in great detail.

Anyway, below are links to a two-part Zeiss article set on "How to Read MTF Curves":

Part 1 is linked first, then Part 2:

http://www.zeiss.de/C12567A8003B8B6F/Em ... ven_EN.pdf

http://www.zeiss.de/C12567A8003B8B6F/Em ... n_2_en.pdf

(I suspect these documents have been posted and linked previously but I was unable to find previous posts via a simple forum search.)
-Phil

"Diffraction never sleeps"

l2oBiN
Posts: 32
Joined: Sat Nov 07, 2009 9:40 pm

Post by l2oBiN »

Hi guys.. the links seem to be dead now...

ChrisR
Site Admin
Posts: 8560
Joined: Sat Mar 14, 2009 3:58 am
Location: Near London, UK

Post by ChrisR »

I was able to download them from a Google search , first two links returned, on "How to read MTF Curves Zeiss".

First link is
http://www.google.co.uk/url?sa=t&rct=j& ... 0519,d.d2s


Second is
http://www.google.co.uk/url?sa=t&rct=j& ... 2s&cad=rja

I've never worked out how to get the direct link from the result of a Google search when it's a download :?

Quite a good article, covering Nikon, Canon and Zeiss charts:
https://photographylife.com/how-to-read-mtf-charts

rjlittlefield
Site Admin
Posts: 21028
Joined: Tue Aug 01, 2006 8:34 am
Location: Richland, Washington State, USA
Contact:

Post by rjlittlefield »

ChrisR wrote:I've never worked out how to get the direct link from the result of a Google search when it's a download :?
The target URL is buried in the middle of the Google query, between "url=" and the next "&", and with all punctuation represented in %hex notation.

Parsed out, these are:

http://www.zeiss.com/content/dam/Photog ... mtf_01.pdf

http://www.zeiss.com/content/dam/Photog ... mtf_02.pdf

--Rik

Post Reply Previous topicNext topic