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Thread started 29 Jul 2009 (Wednesday) 07:06
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35L 1.4 on 5D2 - Vignetting due to Hood

 
Peacefield
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Jul 29, 2009 07:06 |  #1

Just got a shiney new 35L lens and mounted it to my 5D2 last night, quickly discovering that the lens hood causes vignetting.

The front element is so far out there, I hesitate to shoot without the hood, both to guard against glare and miscellaneous fingers. How do you address this?

Thanks.


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philcozz
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Jul 29, 2009 07:11 |  #2

Peacefield wrote in post #8361838external link
Just got a shiney new 35L lens and mounted it to my 5D2 last night, quickly discovering that the lens hood causes vignetting.

The front element is so far out there, I hesitate to shoot without the hood, both to guard against glare and miscellaneous fingers. How do you address this?

Thanks.

I use the hood and I haven't noticed vignetting (nothing that is really problematic anyway).


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msowsun
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Jul 29, 2009 07:57 |  #3

Peacefield wrote in post #8361838external link
Just got a shiney new 35L lens and mounted it to my 5D2 last night, quickly discovering that the lens hood causes vignetting.

The front element is so far out there, I hesitate to shoot without the hood, both to guard against glare and miscellaneous fingers. How do you address this?

Thanks.

Which hood are you using?

Canon EW-78
Canon EW-78B
Canon EW-78C
Canon EW-78D
Third party hood or "knock Off"?


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Peacefield
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Jul 29, 2009 08:52 |  #4

Hmmm, that's why I asked; I don't recall every seeing anyone mention the issue so I'm thinking something is not right.

I'm remote and will have to check the model #, but it's the stock hood that came in the same box with the lens. It's petal shaped; I assume the EW-78C. Is this not standard? I see Canon also markets a flatter rounder hood, the EW-5411 like what fits on the 85mm. Is this what I need/should've had in the box in the first place? Might it have come with the wrong hood?

I'll have to say that, out of the box, this hood did not fit well. It required just a little light sanding and a touch of paste wax. That might have raised my concern had I not had to treat other Canon lens hoods the same way over time.


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jacobsen1
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Jul 29, 2009 08:59 as a reply to Peacefield's post |  #5

did you buy this new or used?
sample pics (one with one w/o the hood)?
hard vignetting or soft?

but no, it should NOT vignette on FF.


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Peacefield
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Jul 29, 2009 09:08 |  #6

New, albiet off of eBay. It was clearly all new and factory packaged. I'll upload some pics this evening and confirm the model number of the hood.

So no vignetting with the (correct) tulip shaped hood?


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5D3, 5D2, 50D, 350D * 16-35 2.8 II, 24-70 2.8 II, 70-200 2.8 IS II, 100-400 IS, 100 L Macro, 35 1.4, 85 1.2 II, 135 2.0, Tokina 10-17 fish * 580 EX II (3) Stratos triggers * Other Stuff plus a Pelican 1624 to haul it all

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Rudi
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Jul 29, 2009 09:12 |  #7

There will be *some* vignetting wide open on full frame. That is how the lens was designed (it was designed in the old film days, and digital is more sensitive in this department). But you shouldn't see heavy vignetting caused by the hood. Of course, there is always a possibility that you got a dud, it happens.


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Peacefield
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Jul 29, 2009 09:24 |  #8

I called back to the house and confirmed that it's the 78C hood which I believe is the correct model. And yes, I should say that I was shooting wide open. I recall (again, I'm remote and will have to post later) the vignetting to creep in only a little along the long sides of the image, but it was very pronounced.


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5D3, 5D2, 50D, 350D * 16-35 2.8 II, 24-70 2.8 II, 70-200 2.8 IS II, 100-400 IS, 100 L Macro, 35 1.4, 85 1.2 II, 135 2.0, Tokina 10-17 fish * 580 EX II (3) Stratos triggers * Other Stuff plus a Pelican 1624 to haul it all

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msowsun
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Jul 29, 2009 09:28 |  #9

EW-78C is the correct hood, but it seems odd that it didn't fit well.

Check to see that you didn't get a "Fake" hood instead of the original Canon.
(If it says "For Canon EW-78C" it is a fake)

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airbutchie
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Jul 29, 2009 09:35 as a reply to msowsun's post |  #10

Just concuring with Mike (and peacefield) that the standard hood lens for the 35L is model # EW-78C...

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I'm curious to see the vignetting on your 5Dmk2, peacefield... Post a sample shot when you can... Thanks...

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BigBlueDodge
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Jul 29, 2009 11:40 |  #11

Please post pictures at f/1.4 with the hood, and without the hood. The hoods are designed for FF use. I am highly skeptical that the hood is causing vignetting, if you are using the proper hood for the lens.


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rklepper
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Jul 29, 2009 11:51 |  #12

There is a correct way to install a petal lens hood and it it is installed the wrong way you will always get vignetting.


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Peacefield
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Jul 29, 2009 16:21 |  #13

Well, I am embarrassed (gosh; I hate when that happens). Possibly because it fit too tightly, I must not have had the hood twisted 100% into position. A little more sanding and a little more paste wax and the hood now fits the lens comfortably, it gets all the way into position, and there's no more vignetting.

Thanks, everyone, for your comments! Sorry 'bout that.


Robert Wayne Photographyexternal link

5D3, 5D2, 50D, 350D * 16-35 2.8 II, 24-70 2.8 II, 70-200 2.8 IS II, 100-400 IS, 100 L Macro, 35 1.4, 85 1.2 II, 135 2.0, Tokina 10-17 fish * 580 EX II (3) Stratos triggers * Other Stuff plus a Pelican 1624 to haul it all

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35L 1.4 on 5D2 - Vignetting due to Hood
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