Vignetting with lense hood attached

rena · 03-03-2012, 12:14 PM

I purchased the 18-135mm WR lens with much anticipation. To my dismay, all my shots show vignetting with the lens hood attached, especially while zooming. Is this normal with Pentax lens hoods? I have to turn the hood around or remove it in order to get rid of this. Can anyone offer a solution?
Thanks,
Mary Ann

calicojack · 03-03-2012, 12:34 PM

Are you saying that ALL of your shots show vignetting, no matter what the focal length is? What camera do you have it mounted on?

Anvh · 03-03-2012, 01:22 PM

Did you click the hood fully on?

Wheatfield · 03-03-2012, 02:06 PM

You aren't mounting the hood 90º off are you?

Raffwal · 03-03-2012, 02:11 PM

Did you buy it new or second hand? Because if it was pre-owned, chances are you got a false hood by accident. I remember reading about a similar case with another lens and the seller had mixed hoods from two lenses.

rena · 03-03-2012, 03:29 PM

Yes, all shots. On a K7. It's a brand new lens. Both indoor and outdoor shots have it. I can only mount the hood with either the Pentax logo on top or the bottom (with the sliding hatch facing upwards). There are two white dots that must be lined up before the hoods clicks into place. It's impossible to put it on any other way. Also, it's worse if I use the pop-up flash (I haven't purchased a hot-shoe flash yet).

M.A.

Anvh · 03-03-2012, 03:38 PM

Do you maybe have a photo for us?

**TomB_tx** · 03-03-2012, 03:43 PM

Most zoom hoods will cast a shadow using pop-up flash, so remove the hood for flash. (or don't use flash - that's my solution)

**Ex Finn.** · 03-03-2012, 04:23 PM

Time to post a sample shot.

Raffwal · 03-03-2012, 04:50 PM

In another thread you mention buying a polarizing filter. Do you use it? If you do, is the result the same without it?

rena · 03-04-2012, 07:06 AM

Name: _FlavoursBeach4_edited-1.jpg
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This photo was taken last March. Most of the others shots were edited to have the vignetting removed.
There is a CP filter attached to the lens in this shot.
I have other shots of waves taken last fall during Hurricane Katja which also have vignetting, but not as severe as this shot. (CP filter was not on the lens for those shots).

Mary Ann

penmaker · 03-05-2012, 03:11 PM

I would say it's the filter.

calicojack · 03-05-2012, 04:54 PM

It sounds to me like you're using the correct hood (having to line up the dots and the location of the filter window). Does it look like the hood in the Lens review page or is it bigger. Based on your photo above, the vignetting looks like its coming from something round, not the correct "petal" shaped lens hood. Try removing any and all filters from your lens, take a picture, then put the hood on, take a picture, remove the hood and put the polarizing filter(only) on, take a picture, remove the polarizer and put the UV on, take a picture. Then compare all the pictures.

westmill · 03-05-2012, 05:19 PM

Originally posted by Raffwal

Did you buy it new or second hand? Because if it was pre-owned, chances are you got a false hood by accident. I remember reading about a similar case with another lens and the seller had mixed hoods from two lenses.

Ive got a funny feeling you are on the right track here. I cant see as it can be anything other than the hood is simply too long
if it does it without the filter attached.

**paulh** · 03-05-2012, 05:23 PM

You should post a photo of the hood - it might be the wrong one for that lens.

03-03-2012, 12:14 PM	#1
rena Closed Account Join Date: Jan 2011 Location: Atlantic Canada Photos: Gallery Posts: 25	Vignetting with lense hood attached I purchased the 18-135mm WR lens with much anticipation. To my dismay, all my shots show vignetting with the lens hood attached, especially while zooming. Is this normal with Pentax lens hoods? I have to turn the hood around or remove it in order to get rid of this. Can anyone offer a solution? Thanks, Mary Ann

03-03-2012, 03:29 PM	#6
rena Closed Account Join Date: Jan 2011 Location: Atlantic Canada Photos: Gallery Posts: 25 Original Poster	Yes, all shots. On a K7. It's a brand new lens. Both indoor and outdoor shots have it. I can only mount the hood with either the Pentax logo on top or the bottom (with the sliding hatch facing upwards). There are two white dots that must be lined up before the hoods clicks into place. It's impossible to put it on any other way. Also, it's worse if I use the pop-up flash (I haven't purchased a hot-shoe flash yet). M.A. Last edited by rena; 03-03-2012 at 03:41 PM.

03-04-2012, 07:06 AM	#11
rena Closed Account Join Date: Jan 2011 Location: Atlantic Canada Photos: Gallery Posts: 25 Original Poster	Vignetting on 18-135mm WR with hood attached on k7 This photo was taken last March. Most of the others shots were edited to have the vignetting removed. There is a CP filter attached to the lens in this shot. I have other shots of waves taken last fall during Hurricane Katja which also have vignetting, but not as severe as this shot. (CP filter was not on the lens for those shots). Mary Ann

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03-03-2012, 12:34 PM	#2
calicojack Inactive Account Join Date: Mar 2007 Location: Long Island, N.Y. Photos: Gallery Posts: 1,124	Are you saying that ALL of your shots show vignetting, no matter what the focal length is? What camera do you have it mounted on?

03-03-2012, 01:22 PM	#3
Anvh Veteran Member Join Date: Sep 2011 Posts: 4,616	Did you click the hood fully on?

03-03-2012, 02:06 PM	#4
Wheatfield Moderator Join Date: Apr 2008 Location: The wheatfields of Canada Posts: 15,987	You aren't mounting the hood 90º off are you?

03-03-2012, 02:11 PM	#5
Raffwal Veteran Member Join Date: Oct 2010 Location: The North Posts: 879	Did you buy it new or second hand? Because if it was pre-owned, chances are you got a false hood by accident. I remember reading about a similar case with another lens and the seller had mixed hoods from two lenses.

03-03-2012, 03:38 PM	#7
Anvh Veteran Member Join Date: Sep 2011 Posts: 4,616	Do you maybe have a photo for us?

03-03-2012, 03:43 PM	#8
TomB_tx Loyal Site Supporter Join Date: Jun 2011 Location: Texas Photos: Gallery Posts: 1,446	Most zoom hoods will cast a shadow using pop-up flash, so remove the hood for flash. (or don't use flash - that's my solution)

03-03-2012, 04:23 PM	#9
Ex Finn. Site Supporter Join Date: Nov 2007 Location: Southern Maryland. Espoo. Kouvola. Photos: Gallery \| Albums Posts: 7,975	Time to post a sample shot.

03-03-2012, 04:50 PM	#10
Raffwal Veteran Member Join Date: Oct 2010 Location: The North Posts: 879	In another thread you mention buying a polarizing filter. Do you use it? If you do, is the result the same without it?

03-05-2012, 03:11 PM	#12
penmaker Junior Member Join Date: Mar 2009 Location: Arkansas Photos: Gallery Posts: 27	I would say it's the filter.

03-05-2012, 04:54 PM	#13
calicojack Inactive Account Join Date: Mar 2007 Location: Long Island, N.Y. Photos: Gallery Posts: 1,124	It sounds to me like you're using the correct hood (having to line up the dots and the location of the filter window). Does it look like the hood in the Lens review page or is it bigger. Based on your photo above, the vignetting looks like its coming from something round, not the correct "petal" shaped lens hood. Try removing any and all filters from your lens, take a picture, then put the hood on, take a picture, remove the hood and put the polarizing filter(only) on, take a picture, remove the polarizer and put the UV on, take a picture. Then compare all the pictures.

03-05-2012, 05:19 PM	#14
westmill Veteran Member Join Date: Jan 2012 Location: Stoke on Trent Photos: Gallery \| Albums Posts: 1,146	Originally posted by Raffwal Did you buy it new or second hand? Because if it was pre-owned, chances are you got a false hood by accident. I remember reading about a similar case with another lens and the seller had mixed hoods from two lenses. Ive got a funny feeling you are on the right track here. I cant see as it can be anything other than the hood is simply too long if it does it without the filter attached.

03-05-2012, 05:23 PM	#15
paulh Site Supporter Join Date: Sep 2010 Location: DFW Texas/Ventura County, CA Photos: Gallery \| Albums Posts: 33,315	You should post a photo of the hood - it might be the wrong one for that lens.