Lens Correction: So I recently aquired a Canon 6D. There is mention in the manual of correction for lens aberration and peripheral illumination. Camera body and enclosed software have...

RAK Loc: Concord Ca

So I recently aquired a Canon 6D. There is mention in the manual of correction for lens aberration and peripheral illumination. Camera body and enclosed software have corrections for canon lenses but for the life of me I cannot find data to imput for correction for the Sigma lenses I own. I need help from you's guy's. Thanks in advance as I know someone will step up.

Rich

dirtpusher Loc: tulsa oklahoma

Sigma because the lens data stored on the 6D is restricted to Canon lenses.
the correction doesn't work with a Sigma lens.

http://www.google.com/#q=canon+6d+lens+correction+data++Sigma+lenses

sportyman140 Loc: Juliette, GA

RAK wrote:

So I recently aquired a Canon 6D. There is mention in the manual of correction for lens aberration and peripheral illumination. Camera body and enclosed software have corrections for canon lenses but for the life of me I cannot find data to imput for correction for the Sigma lenses I own. I need help from you's guy's. Thanks in advance as I know someone will step up.

Rich

HI welcome to the 6D club, I too have checked on my camera with using the correction for lens aberration and peripheral illumination. it is very similar to bracketing but you are checking if your lens is out of focus with dead on or more front or back focus. It is easy to do, set up a tripod with camera looking down a porch railing of spindles and select the very center spindle to focus on and then record all images and as you would do going through the program, then you will see if you lens is out of focus. but you need to perform the check in shortest focal plane & then in longest focal plane of a tele-photo zoom lens. if you have any questions let me now I will be happy to convers with you about the process. I really learned the process from Canon.

RAK Loc: Concord Ca

Thanks for the reply. I downloaded a target for checking focus and was going to perform this test but I was also interested in the abberration and illumination corrections. The manual says that the values may be plugged in but I am having a perplexing time finding the values and then knowing what to do with them once I have them.

Rich

haroldross Loc: Walthill, Nebraska

I primarily use the lens correction in Lightroom. You should be able to download the lens profiles for your different lens. This gives you a lot more control of what is going on.

LFingar Loc: Claverack, NY

RAK wrote:

So I recently aquired a Canon 6D. There is mention in the manual of correction for lens aberration and peripheral illumination. Camera body and enclosed software have corrections for canon lenses but for the life of me I cannot find data to imput for correction for the Sigma lenses I own. I need help from you's guy's. Thanks in advance as I know someone will step up.

Rich

I have a 70D with the same feature but all my lenses are Canon. Still, I have wondered how you would enter data for non-Canon lenses. I had assumed that it would be available on the manufacturer's website. Have you checked?

sportyman140 Loc: Juliette, GA

LFingar wrote:

I have a 70D with the same feature but all my lenses are Canon. Still, I have wondered how you would enter data for non-Canon lenses. I had assumed that it would be available on the manufacturer's website. Have you checked?

WOW that's just it I did my calibration with all my Sigma lenses and they checked out great. the same way as with Canon lenses

libdemtex

sportyman140 wrote:

WOW that's just it I did my calibration with all my Sigma lenses and they checked out great. the same way as with Canon lenses

How did you do it. Sigma had no clue what I was talking about when I asked for info on calibrating a sigmd lens and a canon camera.

libdemtex

sportyman140 wrote:

WOW that's just it I did my calibration with all my Sigma lenses and they checked out great. the same way as with Canon lenses

How did you do it. Sigma had no clue what I was talking about when I asked for info on calibrating a sigma lens and a canon camera.

marcomarks Loc: Ft. Myers, FL

RAK wrote:

So I recently aquired a Canon 6D. There is mention in the manual of correction for lens aberration and peripheral illumination. Camera body and enclosed software have corrections for canon lenses but for the life of me I cannot find data to imput for correction for the Sigma lenses I own. I need help from you's guy's. Thanks in advance as I know someone will step up.

Rich

DxO Optics Pro will provide corrections for any camera and lens combination from all major manufacturers. The Canon software isn't going to have Sigma corrections because they'd prefer you not even know Sigma exists and prefer you to buy all Canon lenses.

LFingar Loc: Claverack, NY

marcomarks wrote:

DxO Optics Pro will provide corrections for any camera and lens combination from all major manufacturers. The Canon software isn't going to have Sigma corrections because they'd prefer you not even know Sigma exists and prefer you to buy all Canon lenses.

Of course they want you to buy their product, but they also accomodate the customer by making it possible to add data from competing lenses. If Sigma doesn't want to provide that info to their customers on their website then they are the ones that need to improve their game.

marcomarks Loc: Ft. Myers, FL

LFingar wrote:

Of course they want you to buy their product, but they also accomodate the customer by making it possible to add data from competing lenses. If Sigma doesn't want to provide that info to their customers on their website then they are the ones that need to improve their game.

I didn't say anything about lens manufacturers like Sigma (I don't consider their few cameras to be of any consequence in the mass market). I was talking about camera manufacturing companies. Why would Canon put any effort into measuring and publishing corrections for Sigma lenses on their site? Why would Nikon? Why would any camera manufacturer mention any other lens company at all when they typically have the same exact lens focal lengths in their line that they want you to buy?

Provide a link to a camera company measuring and offering lens correction data for another company's lenses on their website and I'll become a believer.

LFingar Loc: Claverack, NY

marcomarks wrote:

I didn't say anything about lens manufacturers lik... (show quote)

I believe you are confused about what I was stating: Canon has provided a corrections system to benefit it's customers. They have augmented that by adding the ability to include competitive lenses. No reasonable person would expect them to also include the data for those lenses. If competitors, like Sigma, don't want to make that data readily available for their customers to use then they are the ones that need to step up their game.
In one of your previous posts you seemed critical of Canon for not including competitor data in the camera data base, a position I consider unreasonable. Perhaps I misunderstood you.

marcomarks Loc: Ft. Myers, FL

LFingar wrote:

I believe you are confused about what I was statin... (show quote)

Yes, you did misunderstand me. I'm not critical of Canon. I merely stated that no manufacturer of cameras with their own line of lenses would go to the extent of finding, calculating, and adding correction information about competitors lenses for their website. To make it possible for users to add correction information they've found is "users helping other users" and that makes sense for building a Canon following with an every growing forum.

Adobe does this too and most of it is about helping use Adobe products but the company administrator can also sit back read what users would like in the next version of a software package. Users can suggest add-ons, plug-ins, and other software to other readers without Adobe censoring them. It turns into a community which is a wise move.