85mm 1.8 just returned from Canon WTF!

I feel as if you must be running into MFD with that "real world" shot, that's a MUCH bigger backfocus than 2-4mm.

I would send it back too. I had an 85mm f/1.8 that severely backfocused. The first trip to Canon, it came back exactly the same. The second time was a charm.

The first shot may be a touch backfocused. I personally wouldn't send it back for that. The second shot's focus is off by a bit. Not sure if it's entirely due to the camera/lens or not though.

If there is consistent back focusing issue in real world use, I'd send it back.

Neilyb wrote in post #8111909
Send it back. You know that it does not work, why ask this lot? Skewed or not you can see the problem.

Agreed, the OP obviously isn't happy with the lens in its current condition, and I doubt that people here are going to be able to talk him into being satisfied..... so get rid of it.

2mm is not enough to fret about. The second test is in front of MFD. User error/apprehensiveness​. This forum talks so much about poorly-calibrated lenses that people are forgetting how they actually work.

Send it with the body.

I would send the lens back with the body.

You can explain that you have several other lens that focuses properly with the body and don't want to mess that up.

Canon will then adjust the lens to focus on your body. It's that simple.

Hers is my 85mm @F1.8 on a 50D with 0 MA. The 85mm that I have needs 0 ma on the 5D II and 50D and also focuses dead center with a xsi body.

Yaamon wrote in post #8116525
I would send the lens back with the body.

You can explain that you have several other lens that focuses properly with the body and don't want to mess that up.

Canon will then adjust the lens to focus on your body. It's that simple.

Hers is my 85mm @F1.8 on a 50D with 0 MA. The 85mm that I have needs 0 ma on the 5D II and 50D and also focuses dead center with a xsi body.

Want to sell it?

angryhampster wrote in post #8116276
2mm is not enough to fret about. The second test is in front of MFD. User error/apprehensiveness​. This forum talks so much about poorly-calibrated lenses that people are forgetting how they actually work.

+1

Sell the 85mm and go crazy looking for another that focuses as accurate, my hair will grey even faster.

See you have a tamron I also and mine focuses dead center too.

Im picky that I want my lens and body to focus exactly where I focused at, just one less thing to worry about when taking pictures.

Most people don't even realize that they may have a lens and body that front or back focus and think at wide open aperture it's normal for the lens to be soft.

Some may think 2mm to 4mm up close is nothing to worry about but as the distance increase so does the misfocus depth, it does not stay the same.

User error WOW...... This thread has took on a whole new life of it's own. I just love how you ask for advise and get called stupid....
I am well aware of what MFD is and I was outside that range, you don't get focus confirmation, and can't take the shot in Auto Focus if your not!
Ok back to the point, yes it does back focus that bad, thanks for the real input from the people that have been there and done that. Thanks all except the ones thumping my forehead collecting post counts.

I will post back once I talk to Canon.

I am still amazed though at the people that think you shouldn't be able to focus on something wide open, like building a race car and telling the driver you can't shift into final gear. Hey thats good enough for you, it's NOT good enough for me.

HoldDaMayo, put your money where your mouth is, Ill sell to your right now for the same price I paid for it in march, thats $30.00 cheaper then current retail. I bought it new @ B&Hphoto I have receipt and warranty card, and all original box and papers.

Yeah I would never want anything as small as a battery to be in focus anyway. Never an eyes ball or a watch, heck who needs 1.8? I'll stop it down to f8.0 and make pretend I got 1.8 ability.

JK, just taking a poke at the Idiocracy displayed in some of these posts ima calling Canon tomorrow. Thanks everyone this was interesting at best.

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That is the test I usually perform, definitely back focus. I shot this today 100% crop of original with slight USM. Good luck with Canon, lets us know how it turns out.

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looks like you may be trying to focus too close... if your trying to focus too close, your camera sensor may be on the spot you want, but it will still show whats in focus at the correct distance

Digitally_Altered.

I was well over 2 feet past MFD. That had been covered and noted and good thing for me my 40D, when lens is in Auto Focus, doesn't focus or fire of the shutter inside MFD.
Thanks W7cma, that was my first "battery test". I only did it to be a smart A double s. I admit when I logged in tonight and read the replies I was ticked off. I am all good now though. Great shot BTW.

ok, guess i didnt see that in the post, as they all look as if anything closest to the camera is out of focus...