UKC

Sorted the focusing issues on my 24-105mm using this (free) approach.

http://www.northlight-images.co.uk/article_pages/cameras/1ds3_af_micoadjust...


Live View (Dual Pixel CMOS AF) was nailing focus (you can't micro-adjust that system), standard auto focus was way out on the lens.

Now awesome in standard AF - like having a brand new sharp lens!

The 70D allows adjustment at Wide and Tele ends of zoom.

In reply to ChrisJD:

This is the one thing really hacking me off with the 60D ie. you can't micro adjust. My 24-105 seems slightly out too, get patchy results which i think may be down to the AF. Funny that.

In reply to ChrisJD:

Ta. Saved article for later.

In reply to ChrisJD:

As someone with a 70d and a new lens in the post, this might come in handy!

In reply to ChrisJD:

Micro-adjustments are great because it saves the camera companies time and money calibrating it correctly in the first place :-P The only issue I have with it is that some lenses require different adjustments depending on focal distance and or focal length. It amazes me that no camera maker yet has auto calibration. It could use contrast detection AF to get a precise adjustment figure, then it would just save that for that particular lens. At least you should have the ability to enter a range of values on a sliding scale for zooms.

I gave up on Nikon because of phase detection AF issues (when the D800 and D4 came out and you had to be super super lucky to get a decent one) - the sooner PDAF is replaced the better

In reply to Richard Carter:

The 70D can do Microadjustment for each lens and gives options for different settings at wide and tele ends on zooms.

On my 24-105, the adjustment amount ended up being the same for both wide and tele.

In reply to ChrisJD:
doesn't Canon guarantee include one free micro-calibration for all Canon lenses? You send them the body and the lens and they make the adjustments for you, no need to mess around with microadjustment which will never be as accurate.
I got my 24-105 calibrated to my 6D body and the results were fantastic.

In reply to mat123:


seems to be pretty damn good to me

In reply to ChrisJD:

Just tried this on my 70d and new sigma 17-50 which arrived today, Sigma was spot on which is good to know.

In reply to Richard Carter:


Not canon per se but reikan focal sounds like what you are after