Showing posts with label error 99. Show all posts
Showing posts with label error 99. Show all posts

Saturday, July 7, 2012

Canon EF 24-105mm f/4 L IS USM Lens

I was afraid this would happen.   Been living with my new Canon EF 24-105mm f/4 L IS USM Lens and I don't want to take it off the camera.  Except to use the "bird lens," the Canon EF 70-200mm f/2.8 L IS.

It took me so long because my old SIGMA 18-200 performed so well in so many circumstances that I was reluctant to give up the convenience having the 18mm instantly available.  It was when the lens locked up my camera last year that I began to have this sickening feeling my stomach that the lens was flawed, and indeed Error 99 was fixed by mounting a Canon brand lens.

So here are the results of the comparison tests.  The first under not so challenging conditions:
At 24mm for The Canon:


At 24mm for The Sigma:





















No real differences in sharpness or contrast.  This is why it took me so long.

Now at 105mm for the Canon:



















105mm for the Sigma:




















Same Story  No real differences in sharpness or contrast.

So I tried under challenging conditions simulating a sunset or a concert with bright light coming straight into the lenses.

The Canon at 24mm.  Some flare, some loss of contrast around the timer.



















The Sigma at 24mm - noticeable ghosts, flare and loss of contrast over a larger part of the image.



















The Canon at 105.  Some loss of contrast and flare.



















The Sigma at 105:  Not acceptable.  Contrast and flare are awful.



















Check your credit card balance and expectations.  Draw your own conclusions.

Here the link to my UK Gallery where I used lenses including the 24-105, and the 70-200.
































Thursday, July 28, 2011

More SIGMA Lens Problems on Canon DSLRs

Error 99 is a well known issue with SIGMA lenses on Canon cameras.  Cost me about $100 to fix that one from disabling my Rebel using the Sigma 35 - 200 due to a bad lens chip.

I was out shooting Manhattan recently with my 50D and Sigma 18-200mm and found that it was "HIJACKED."  By that I mean, uable to change the shutter speed in Tv mode, unable to change the shutter speed in M mode, unable to see shutter speed in Av mode.

Thinking I was having to send the camera back for repair, the Error 99 experience made me suspect the lenses.  I put on the Sigma 50 1.4 and no change.  I then put on my Canon 70-200 EF IS and VOILA - the problem was FIXED!  Each time I turned off the camera and turned it back on again to "Reboot."

So I am suspect of the combination and reliability of Sigmas lenses with Canon cameras.  After the Canon lens fix, I tried my Sigma 18-200mm and it worked again, but for how long.  We will see how Sigma responds.

 Here is my Midtown view from my Night Gallery using my Canon 70-200mm.


















I am serously considering either of the following:
Canon 24-70mm EF L f 2.8  or the Canon EF L f/4 24 - 105.  Neither is ideal for APS-C size Sensor as has been outlined in previous posts by this author.















Monday, November 29, 2010

CANON Error 99

Error 99 is a common error with Canon D-SLR cameras that reminds me of the "Check Engine" light on your car's dashboard.  Its meaning is cryptic and literally could have MULTIPLE causes.

We got hit with it while traveling in Greece.  Cameras never fail in the closet you know.  Turns out the culprit was a Sigma 35-200mm lens whose electronics had given up the ghost.

The error appears intermittently which is maddening since it make diagnosis difficult.  Sometimes it was "cured" for a moment by shutting off the camera and turning it back on.  Other times this was a fools errand and didn't work.

I tried the lens on another body and sure enough, it produced the error, so back to Sigma went the lens.  It cost around $100 to fix, so be prepared for that.  Other web posts had said that the repairs were pro-bono, but that was not my case.

Check out this site for additional causes.

Shot with my Sigma 18-200mm in Santorini Greece. Shot in Fira looking toward Oia.  I was literally sick as a dog but had to get the shot.  Click here to see more of Greece.