boels069

Lives in Netherlands Almere, Netherlands
Works as a Retired
Joined on Nov 25, 2007

Comments

Total: 6, showing: 1 – 6
In reply to:

vscd: Sometimes the reason is that two different lenses have the same lens-ID in the exifs. For example the Voigtländer Skopar 40mm has the same as the Canon 40mm 2.8 STM. So if you turn on "in camera correction" with a Skopar, you may get the correction of a 40mm 2.8 STM, which won't fit at all.

I don't know if there is a central institution for Lens-IDs, but it causes trouble in some cases.

See:
http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Canon.html#LensType

Link | Posted on Jun 3, 2016 at 12:46 UTC

In-camera peripheral illumination correction should be set to OFF for all third party lenses.
All 3rd party lenses have Lens-ID's corresponsing to Canon lenses with (more or less) the same specs.
See: http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Canon.html#LensType

Link | Posted on Jun 2, 2016 at 19:00 UTC as 20th comment
On article Can computer corrections make simple lenses look good? (163 comments in total)
In reply to:

Roland Karlsson: Interesting.

I wonder how it performs if it is applied to a rather good lens, like an average zoom kit lens?

Canon uses DLO (Digital Lens Optimizer) in DPP.
http://web.canon.jp/imaging/dlo/factor/index.html

Link | Posted on Sep 30, 2013 at 18:54 UTC
In reply to:

bodziu: I wonder if it would sucesfully fix the CA issue... just how long it'd take to batch process 100 pictures for example...

Tested with only one ISO 25600 ARW-file.
It took 11 seconds on a 5 years old PC with Windows 7-64bit with 20 GByte memory (a high-end at that time).

Link | Posted on Jan 17, 2013 at 00:16 UTC
In reply to:

wkay: What does this give me that PTLens and Camera Raw dont?

AFAIK, DxO uses focus distance and aperture as parameters for correction.

Link | Posted on Sep 6, 2012 at 07:12 UTC

Just processed a couple of D800/D800E NEFs with DxO 7.5.1 Elite.
The results are stunning (I am a Canonian) at 100%, the first razor sharp JPGs I have seen from the D800/D800e.

Link | Posted on Jun 20, 2012 at 22:55 UTC as 15th comment
Total: 6, showing: 1 – 6