Pentax 50-135mm Vignetting Problem?

nah · 04-15-2009, 10:18 AM

Not sure if this is a normal occurrence with this lense but check out this image at f/5.6 @ 50mm. I do have a UV filter on it though.

anyone else get something like that? thanks.

Marc Sabatella · 04-15-2009, 10:27 AM

Definitely not normal. Is that always there? If so, try taking the filter off. My guess, though, is that's your finger...

vizjerei · 04-15-2009, 10:38 AM

I actually thinking if it is somthing in the foreground in the picture. Definitely not normal if it is not something in the foreground

nah · 04-15-2009, 10:45 AM

Originally posted by Marc Sabatella

Definitely not normal. Is that always there? If so, try taking the filter off. My guess, though, is that's your finger...

It's definitely not my finger as I'm shooting with the hood on and you know how far that goes out. It seems to happen at f/2.8 also, but I noticed that some pics have more than others.

I just tested it by shooting my monitor and it doesn't show at the same settings as that pic, f5.6, 100 iso, 50mm. So it could be defective. Any other reasoning on why it could vignette like that?

gnaztee · 04-15-2009, 10:46 AM

Any chance your lens hood wasn't totally clicked in place?

nah · 04-15-2009, 11:01 AM

Originally posted by gnaztee

Any chance your lens hood wasn't totally clicked in place?

Winner! I was just looking through my previous days of shots and didn't notice it in those shots. So I just did a test right now, and that was it. Now I'm a little embarrassed...

Thanks guys!

gnaztee · 04-15-2009, 11:55 AM

Don't be embarrassed, I only suggested it because I've heard of it several times on various forums with various lenses/hoods.

04-15-2009, 10:18 AM	#1
nah Senior Member Join Date: May 2008 Location: New Westminster, Canada Photos: Gallery Posts: 282	Pentax 50-135mm Vignetting Problem? Not sure if this is a normal occurrence with this lense but check out this image at f/5.6 @ 50mm. I do have a UV filter on it though. anyone else get something like that? thanks.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Pentax 6x7 45mm: Vignetting using Cokin Z-Pro filter holder?	leoyblam	Pentax Medium Format	2	08-19-2010 08:04 PM
Anyone else have this DA* 50-135mm problem?	PentaxPoke	Pentax SLR Lens Discussion	104	03-30-2010 01:31 AM
Problem with the 50-135mm DA*	offertonhatter	Pentax SLR Lens Discussion	15	03-01-2009 09:53 PM
vignetting problem	enrod666	Pentax DSLR Discussion	13	12-24-2008 10:04 PM
vignetting with filters on Pentax 12-24mm?	sholtzma	Pentax SLR Lens Discussion	2	03-20-2008 08:04 AM

04-15-2009, 10:27 AM	#2
Marc Sabatella Veteran Member Join Date: Sep 2006 Location: Denver, CO Photos: Gallery Posts: 10,685	Definitely not normal. Is that always there? If so, try taking the filter off. My guess, though, is that's your finger...

04-15-2009, 10:38 AM	#3
vizjerei Veteran Member Join Date: May 2007 Location: Toronto Photos: Gallery Posts: 1,418	I actually thinking if it is somthing in the foreground in the picture. Definitely not normal if it is not something in the foreground

04-15-2009, 10:45 AM	#4
nah Senior Member Join Date: May 2008 Location: New Westminster, Canada Photos: Gallery Posts: 282 Original Poster	Originally posted by Marc Sabatella Definitely not normal. Is that always there? If so, try taking the filter off. My guess, though, is that's your finger... It's definitely not my finger as I'm shooting with the hood on and you know how far that goes out. It seems to happen at f/2.8 also, but I noticed that some pics have more than others. I just tested it by shooting my monitor and it doesn't show at the same settings as that pic, f5.6, 100 iso, 50mm. So it could be defective. Any other reasoning on why it could vignette like that?

04-15-2009, 10:46 AM	#5
gnaztee Veteran Member Join Date: Nov 2007 Location: West Palm Beach, FL Posts: 772	Any chance your lens hood wasn't totally clicked in place?

04-15-2009, 11:01 AM	#6
nah Senior Member Join Date: May 2008 Location: New Westminster, Canada Photos: Gallery Posts: 282 Original Poster	Originally posted by gnaztee Any chance your lens hood wasn't totally clicked in place? Winner! I was just looking through my previous days of shots and didn't notice it in those shots. So I just did a test right now, and that was it. Now I'm a little embarrassed... Thanks guys!

04-15-2009, 11:55 AM	#7
gnaztee Veteran Member Join Date: Nov 2007 Location: West Palm Beach, FL Posts: 772	Don't be embarrassed, I only suggested it because I've heard of it several times on various forums with various lenses/hoods.