Pentax 50-135mm Vignetting Problem?

nah · 04-15-2009, 11:18 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, 11:27 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, 11:38 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, 11:45 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, 11:46 AM

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

nah · 04-15-2009, 12:01 PM

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, 12:55 PM

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