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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses
Thread started 08 Jun 2016 (Wednesday) 21:24
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70-200 F4 IS question

 
Andy ­ R
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So Cal
Jun 08, 2016 21:24 |  #1

I just got a 2nd hand 70-200 F4 IS and it is quite soft at 200mm until around f8. I owned a non IS version in the past it it was very sharp at f4- so I feel there is something absolutely wrong with it (no part is sharp so I know it's not a MA issue, I've tried both of my bodies with the same result, shot from a tripod during a sunny day is on and off, SS above 1/1000). So.... I'm curious what the options are, I've never had to send a lens off, what am I looking at as far as potential solutions as well as costs involved in sending it in? Any help would be great!


5Dii ~ SL1
Rok 14mm ~ 24 STM ~ 24-70L f4 IS ~ 50 f1.8 STM ~ 70-200 f4 IS ~ 1.4xii & 2xii

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mathogre
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Oakton, VA USA
Jun 08, 2016 21:34 |  #2

Sorry to hear that. :( I'd say there's something wrong with the lens. Below is a link to a photo I just posted from that lens, and it is fairly cropped. While you can see the EXIF data (f/5.6), this was hand-held on a hazy day from a few miles away. Although processed in Lightroom, I've done no additional sharpening. I've completely enjoyed my copy of the 70-200 f/4 IS, and have had no troubles with it.

http://photography-on-the.net ...showthread.php?p=18​033554

Can you return it? If you can, I would recommend it.

For service, others will have to comment on that. My guess is there's a minimal fee. They'll evaluate it, give you an estimate, and you'll have to choose if it's worth repairing.

Good luck!


Graham
Canon A BIG ONE A Small One An itty bitty one
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ejenner
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Denver, CO
Post has been last edited over 1 year ago by ejenner. 2 edits done in total.
Jun 08, 2016 22:11 |  #3

Yea, you can see the lenses I have. I would consider this lens sharp at f4. It does sharpen up at f5.6, but it is very decently sharp at f4. Should actually be a tad softer at f8 in the center than f5.6-f6.3, certainly not substantially sharper.

As far as sending it it, most likely it will cost the standard labor charge (I guess ~$200 or more). So returning it if possible would be better.

One caveat. This lens IS soft near minimum focus distance. So if you were doing your tests at close range (< 2m), then yes, it is normal, especially at 200mm.


Edward Jenner
5DIII, 7DII, M6, GX1 II,M11-22, Sig15mm FE,16-35 F4,TS-E 17,Sig 18-250 OS Macro,M18-150,24-105,T45 1.8VC,70-200 f4 IS,70-200 2.8 vII,Sig 85 1.4,100L,135L,400DOII.
http://www.flickr.com/​photos/48305795@N03/ (external link)
https://www.facebook.c​om/edward.jenner.372/p​hotos (external link)

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FEChariot
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Jun 08, 2016 23:06 |  #4

My 70-200/4 IS is broken. It can't stop down smaller than f4. OK for real I wouldn't know if it was actually broken as its perfectly sharp at f4.

I would do some tests on a tripod with live view to just check its not a focus calibration issue, but sending it to Canon is probably going to be your route.


Canon 7D/350D, Σ17-50/2.8 OS, 18-55IS, 24-105/4 L IS, Σ30/1.4 EX, 50/1.8, C50/1.4, 55-250IS, 60/2.8, 70-200/4 L IS, 85/1.8, 100/2.8 IS L, 135/2 L 580EX II, 430EX II * 2, 270EX II.

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ed ­ rader
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silicon valley
Post has been edited over 1 year ago by ed rader.
Jun 12, 2016 14:53 |  #5

"2nd hand"


http://instagram.com/e​draderphotography/ (external link)
5D4, 80d, 16-35L III, 24-70L II, 70-200L F4 IS, 100-400L II, sigma 15mm FE, 430exII, gitzo 3542, markins Q10, kirk, really right stuff

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Andy ­ R
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So Cal
Jun 13, 2016 16:13 as a reply to ed rader's post |  #6

Indeed second hand, I have yet to every buy a lens brand new with the exception of a Tamron 28-75, and I have had probably 8 lenses since and this is the first problem I have encountered- yet I have saved probably a couple thousand on all of my lens purchases....


Thanks for solidifying that I'm haven't forgotten how sharp this bad boy should be. Into Canon it will go.


5Dii ~ SL1
Rok 14mm ~ 24 STM ~ 24-70L f4 IS ~ 50 f1.8 STM ~ 70-200 f4 IS ~ 1.4xii & 2xii

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mathogre
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Oakton, VA USA
Jun 13, 2016 17:05 |  #7

Andy R wrote in post #18038337 (external link)
Indeed second hand, I have yet to every buy a lens brand new with the exception of a Tamron 28-75, and I have had probably 8 lenses since and this is the first problem I have encountered- yet I have saved probably a couple thousand on all of my lens purchases....


Thanks for solidifying that I'm haven't forgotten how sharp this bad boy should be. Into Canon it will go.

(Emphasis added in the quote.)

Actually I've bought two L lenses used. They were previously rentals, and I saved a bunch of money on them. While I'm not typically a fan of "used" anything, these have proved to be quite good.


Graham
Canon A BIG ONE A Small One An itty bitty one
My Zenfolio Collectionexternal link

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Lbsimon
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Joined Jan 2011
Boston, MA
Jun 14, 2016 11:50 |  #8

I had this lens repaired by Canon. I dropped it, and the IS started acting up. I could get very sharp images with the IS off, but as soon as I tuned it on, the sharpness was unsatisfactory. It cost me $560 plus shipping both ways.

In that case, since it was a fall, the insurance covered the cost of the repair.


5D Mark IV | 6D | S110
EF 17-40L | EF 24-105L (two) | EF 70-200L F4 IS | EF 100-400L II | EF 85 1.8 | EF 50 1.8 STM | Canon 1.4x III | Canon 1.4x II
Yongnuo 685 | Nissin Di622 M2 | Nissin Di422

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Charlie
Guess What! I'm Pregnant!
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Jun 14, 2016 12:32 |  #9

Can you return it? A broken zoom mechanism can be very expensive. I've encountered the same issues you've had, and I returned the lens/filed claim. On one of the lens, $600 repair bill, that's near the full cost of the lens! Canon refurb may have some of those lenses.


Sony A7rii/A7riii - FE 12-24/4 - FE 24-240 - FE 28/2 - FE 35/2.8 - CV 35/1.7 - FE 50/1.8 - FE 85/1.8 - EF 135/1.8 Art - F 600/5.6 - CZ 35-70, 100-300 - Astro Rok 14/2.8, 24/1.4 - Tamron 28-75 f2.8, 70-200 f2.8 VC

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Andy ­ R
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So Cal
Jun 22, 2016 11:22 |  #10

I just wanted thank everyone for their input, I sent it to canon for focus adjustments, and it came to a total of 190$ and got it back with the sharpness I knew it was! The seller even paid for half if the fix so yay!


5Dii ~ SL1
Rok 14mm ~ 24 STM ~ 24-70L f4 IS ~ 50 f1.8 STM ~ 70-200 f4 IS ~ 1.4xii & 2xii

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70-200 F4 IS question
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