DA16-45 softness in portrait format

DSLRnovice · 07-17-2008, 06:11 AM

Hello,

I have recently purchased the K20D and the 16-45 zoom with it. Later I learned as others have discovered that when the camera is tilted for verticals, the top of the vertical becomes softer than the bottom.

One reported that after replacement, his was improved somewhat. Anyone else here had any luck with replacements of this lens?

Dan

k100d · 07-17-2008, 06:50 AM

possible decentering issue? the right side is softer than the left on your lens?

Alfisti · 07-17-2008, 06:53 AM

Check your technique, probably not holding the camera square, i do this all the time.

Nesster · 07-17-2008, 10:58 AM

I haven't been aware of this or seen the discussions...

OK I will not get worried about this... though I suppose I'll need to test it now.

lesmore49 · 07-17-2008, 12:04 PM

Had my 16-45 since Dec/07 with a K10D. Portraits are razer sharp.

AndrewG NY · 07-17-2008, 03:43 PM

Possibly a depth-of-field issue if the camera is pointed somewhat up or down?

DSLRnovice · 07-17-2008, 05:26 PM

From what I have read on dpreview, the weight of the lens when the camera is tilted introduces softness at the upper part of the vertical.

I have not noticed this in the horizontal position- left/differential. At first I thought it was losing detail near the edges of the frame, until I saw that the opposite side was much better.

Others have suggested that this is due to some looseness in the construction and that is to be accepted. I hope I can get a better replacement, as this is new.

Dan

HGMonaro · 07-17-2008, 09:08 PM

never noticed it, what happens if you turn the camera around the other way (180 degrees)?

07-17-2008, 06:11 AM	#1
DSLRnovice Senior Member Join Date: Jul 2008 Posts: 192	DA16-45 softness in portrait format Hello, I have recently purchased the K20D and the 16-45 zoom with it. Later I learned as others have discovered that when the camera is tilted for verticals, the top of the vertical becomes softer than the bottom. One reported that after replacement, his was improved somewhat. Anyone else here had any luck with replacements of this lens? Dan

07-17-2008, 05:26 PM	#7
DSLRnovice Senior Member Join Date: Jul 2008 Posts: 192 Original Poster	DA16-45 softness in verticals From what I have read on dpreview, the weight of the lens when the camera is tilted introduces softness at the upper part of the vertical. I have not noticed this in the horizontal position- left/differential. At first I thought it was losing detail near the edges of the frame, until I saw that the opposite side was much better. Others have suggested that this is due to some looseness in the construction and that is to be accepted. I hope I can get a better replacement, as this is new. Dan

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07-17-2008, 06:50 AM	#2
k100d Veteran Member Join Date: Feb 2008 Location: Toronto Posts: 3,911	possible decentering issue? the right side is softer than the left on your lens?

07-17-2008, 06:53 AM	#3
Alfisti Veteran Member Join Date: Mar 2007 Location: Toronto (for now) Posts: 1,748	Check your technique, probably not holding the camera square, i do this all the time.

07-17-2008, 10:58 AM	#4
Nesster Veteran Member Join Date: Oct 2006 Location: NJ USA Photos: Gallery Posts: 13,072	I haven't been aware of this or seen the discussions... OK I will not get worried about this... though I suppose I'll need to test it now.

07-17-2008, 12:04 PM	#5
lesmore49 Pentaxian Join Date: Nov 2007 Location: Western Canada Posts: 12,344	Had my 16-45 since Dec/07 with a K10D. Portraits are razer sharp.

07-17-2008, 03:43 PM	#6
AndrewG NY Veteran Member Join Date: Dec 2006 Location: Chappaqua, NY Photos: Gallery Posts: 688	Possibly a depth-of-field issue if the camera is pointed somewhat up or down?

07-17-2008, 09:08 PM	#8
HGMonaro Veteran Member Join Date: Apr 2007 Location: Melb. Aust Posts: 840	never noticed it, what happens if you turn the camera around the other way (180 degrees)?