The 15mm Limited controls my mind - club

deadwolfbones · 02-17-2010, 04:36 PM

What I wanna know is what kind of deal you have with Pentax to get such perfect copies of all your lenses.

jsherman999 · 02-17-2010, 04:50 PM

Originally posted by deadwolfbones

What I wanna know is what kind of deal you have with Pentax to get such perfect copies of all your lenses.

.

Actually, I have a -5 adjustment on my DA 15.

deadwolfbones · 02-17-2010, 04:58 PM

Originally posted by jsherman999

.

Actually, I have a -5 adjustment on my DA 15.

I'm still fiddling with mine trying to get the same level of sharpness you've got. :ugh:

goddo31 · 02-17-2010, 06:40 PM

Originally posted by deadwolfbones

I'm still fiddling with mine trying to get the same level of sharpness you've got. :ugh:

Sometimes it's relieving to know it's not just me doing this ...

audiobomber · 02-17-2010, 07:49 PM

Originally posted by deadwolfbones

What I wanna know is what kind of deal you have with Pentax to get such perfect copies of all your lenses.

Originally posted by deadwolfbones

I'm still fiddling with mine trying to get the same level of sharpness you've got.

Originally posted by goddo31

Sometimes it's relieving to know it's not just me doing this ...

And yet his 16-45mm is not as sharp as mine.

deadwolfbones · 02-17-2010, 08:20 PM

Yeah, I just tested and even at +10 AF adjustment it's still off. Guess I'm gonna have to ask for an exchange.

Hemppo · 02-20-2010, 10:53 AM

Finally caught an e-mail telling me that my baby is on the way home... Only couple days an I'll get my hands to it.

GeneV · 02-20-2010, 11:40 AM

Seems like a sharpness problem on a lens with a depth of field from 1 meter to infinity wide open is not likely to be a FF or BF problem on the magnitude of the adjustments in the K20d. It probably is time to have Pentax look at it. On a bright day, you could pretty much set the hyperfocal point and turn AF off.

PentHassyKon · 02-20-2010, 11:53 AM

Originally posted by jsherman999

Stages of forum-induced LBA:

Random thread click while bored --> Mild curiosity --> interest --> great interest --> can't sleep at night --> hatred for thread initiators --> epiphany --> calm acceptance --> Adorama --> "Out For Delivery".

Replace bold items above with
"hatred for jsherman999", "Pentax Forums Marketplace"

I hesitated for 10 minutes on a 15mm I saw on the marketplace.
I'm glad to see your comparison shots with the 16-45 as that is what I have in my arsenal. The hesitation was due to priorities - DA21, DA40 1st B4 DA15. I'm happy to see that my DA16-45 can pass for all 3 of these limiteds. The contemplation is due to the "large" size of the 16-45.
Until I hit a windfall or start getting paid to take photos, I'll have to do the best with what I have.

Heaven forbid, jsherman starts a thread on the DA21/DA40. We'll all never sleep at night. Wait, maybe he has.... pls don't tell us.

jsherman999 · 02-20-2010, 04:41 PM

Originally posted by audiobomber

And yet his 16-45mm is not as sharp as mine.

What!? That's not acceptable. Please post some infinity shots, central crop, f/4. I can't live with it if it's true.

Originally posted by Hemppo

Finally caught an e-mail telling me that my baby is on the way home... Only couple days an I'll get my hands to it.

Congrats, it's one of the more exciting lenses I've put on any of my cameras lately.

Originally posted by GeneV

Seems like a sharpness problem on a lens with a depth of field from 1 meter to infinity wide open is not likely to be a FF or BF problem on the magnitude of the adjustments in the K20d. It probably is time to have Pentax look at it. On a bright day, you could pretty much set the hyperfocal point and turn AF off.

Good point.

Originally posted by PentHassyKon

Replace bold items above with
"hatred for jsherman999", "Pentax Forums Marketplace"

I hesitated for 10 minutes on a 15mm I saw on the marketplace.
I'm glad to see your comparison shots with the 16-45 as that is what I have in my arsenal. The hesitation was due to priorities - DA21, DA40 1st B4 DA15. I'm happy to see that my DA16-45 can pass for all 3 of these limiteds. The contemplation is due to the "large" size of the 16-45.
Until I hit a windfall or start getting paid to take photos, I'll have to do the best with what I have.

Heaven forbid, jsherman starts a thread on the DA21/DA40. We'll all never sleep at night. Wait, maybe he has.... pls don't tell us.

.

Yes, the 16-45 is a great alternative. I've owned the DA 40, just didn't like the focal length and max aperture combo enough to keep it. But I've seen some very clean, crisp shots others have posted form that lens, and it locks focus very fast.

Never owned the DA 21 - my M 20 f/4 pretty much probably can not be beat by anything at that FL.

Sorry to hear about your sharpness problems, Ben - hopefully you have a replacement on the way as we speak. I think it's well worth it.

Here's what close-focus, wide-open should look like in real-world shots:

Crop:

More randomness:

.

jsherman999 · 02-21-2010, 10:44 PM

.

Snaps from today:

JasonA · 02-21-2010, 11:04 PM

Wonderful J! I got mine and I don't see any problems with sharpness. Unfortunately, I haven't gotten beyond my front yard with it yet!

GeneV · 02-22-2010, 06:59 AM

From the standpoint of taking pictures, rather than looking at pixels wide open, this lens is near perfect in balancing size and resolution IMO. Below is a 100% crop from a film shot. It is not a perfect test, because the focus was not actually on these chain links, but the lens is stopped way down to f/11. The links are so far to the extreme borders that parts of them are not even within the APS-C frame. The dark in the lower right corner is the absolute edge of the image circle. To get an idea of the location of this crop, look at a larger view of a similar shot I posted here https://www.pentaxforums.com/forums/920416-post151.html . The chain links were slightly closer to the edge in this frame.

hs57 · 02-22-2010, 11:17 AM

Snap from today:

LG
Hartmut

GeneV · 02-22-2010, 11:17 AM

You know, I just logged in to my work computer and saw that my last posted photo crop looks about 1 stop darker than on my home computer. It is a bit of thread drift, but this does make me wonder how different all of the photos we post look to the various participants around the world viewing them on different monitors.

02-22-2010, 06:59 AM	#193
GeneV Veteran Member Join Date: Oct 2008 Location: Albuquerque NM Photos: Albums Posts: 9,830	From the standpoint of taking pictures, rather than looking at pixels wide open, this lens is near perfect in balancing size and resolution IMO. Below is a 100% crop from a film shot. It is not a perfect test, because the focus was not actually on these chain links, but the lens is stopped way down to f/11. The links are so far to the extreme borders that parts of them are not even within the APS-C frame. The dark in the lower right corner is the absolute edge of the image circle. To get an idea of the location of this crop, look at a larger view of a similar shot I posted here https://www.pentaxforums.com/forums/920416-post151.html . The chain links were slightly closer to the edge in this frame. Attached Images Last edited by GeneV; 02-22-2010 at 07:04 AM.

02-22-2010, 11:17 AM	#194
hs57 Inactive Account Join Date: May 2009 Location: Germany Photos: Gallery Posts: 69	The 15mm Limited controls my mind...... Snap from today: LG Hartmut

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02-17-2010, 04:36 PM	#181
deadwolfbones Veteran Member Join Date: Sep 2007 Location: La Crescenta, CA Posts: 7,450	What I wanna know is what kind of deal you have with Pentax to get such perfect copies of all your lenses.

02-17-2010, 04:50 PM	#182
jsherman999 Veteran Member Join Date: Dec 2007 Photos: Gallery Posts: 8,237 Original Poster	Originally posted by deadwolfbones What I wanna know is what kind of deal you have with Pentax to get such perfect copies of all your lenses. . Actually, I have a -5 adjustment on my DA 15.

02-17-2010, 04:58 PM	#183
deadwolfbones Veteran Member Join Date: Sep 2007 Location: La Crescenta, CA Posts: 7,450	Originally posted by jsherman999 . Actually, I have a -5 adjustment on my DA 15. I'm still fiddling with mine trying to get the same level of sharpness you've got. :ugh:

02-17-2010, 06:40 PM	#184
goddo31 Veteran Member Join Date: Feb 2009 Location: Perth, Western Australia Photos: Gallery \| Albums Posts: 2,576	Originally posted by deadwolfbones I'm still fiddling with mine trying to get the same level of sharpness you've got. :ugh: Sometimes it's relieving to know it's not just me doing this ...

02-17-2010, 07:49 PM	#185
audiobomber Veteran Member Join Date: May 2008 Location: Sudbury, Ontario Photos: Albums Posts: 6,806	Originally posted by deadwolfbones What I wanna know is what kind of deal you have with Pentax to get such perfect copies of all your lenses. Originally posted by deadwolfbones I'm still fiddling with mine trying to get the same level of sharpness you've got. Originally posted by goddo31 Sometimes it's relieving to know it's not just me doing this ... And yet his 16-45mm is not as sharp as mine.

02-17-2010, 08:20 PM	#186
deadwolfbones Veteran Member Join Date: Sep 2007 Location: La Crescenta, CA Posts: 7,450	Yeah, I just tested and even at +10 AF adjustment it's still off. Guess I'm gonna have to ask for an exchange.

02-20-2010, 10:53 AM	#187
Hemppo Senior Member Join Date: Oct 2008 Location: Hämeenkyrö, Finland Posts: 190	Finally caught an e-mail telling me that my baby is on the way home... Only couple days an I'll get my hands to it.

02-20-2010, 11:40 AM	#188
GeneV Veteran Member Join Date: Oct 2008 Location: Albuquerque NM Photos: Albums Posts: 9,830	Seems like a sharpness problem on a lens with a depth of field from 1 meter to infinity wide open is not likely to be a FF or BF problem on the magnitude of the adjustments in the K20d. It probably is time to have Pentax look at it. On a bright day, you could pretty much set the hyperfocal point and turn AF off.

02-20-2010, 11:53 AM	#189
PentHassyKon Veteran Member Join Date: Oct 2008 Location: SoCal Posts: 415	Originally posted by jsherman999 Stages of forum-induced LBA: Random thread click while bored --> Mild curiosity --> interest --> great interest --> can't sleep at night --> hatred for thread initiators --> epiphany --> calm acceptance --> Adorama --> "Out For Delivery". Replace bold items above with "hatred for jsherman999", "Pentax Forums Marketplace" I hesitated for 10 minutes on a 15mm I saw on the marketplace. I'm glad to see your comparison shots with the 16-45 as that is what I have in my arsenal. The hesitation was due to priorities - DA21, DA40 1st B4 DA15. I'm happy to see that my DA16-45 can pass for all 3 of these limiteds. The contemplation is due to the "large" size of the 16-45. Until I hit a windfall or start getting paid to take photos, I'll have to do the best with what I have. Heaven forbid, jsherman starts a thread on the DA21/DA40. We'll all never sleep at night. Wait, maybe he has.... pls don't tell us.

02-20-2010, 04:41 PM	#190
jsherman999 Veteran Member Join Date: Dec 2007 Photos: Gallery Posts: 8,237 Original Poster	Originally posted by audiobomber And yet his 16-45mm is not as sharp as mine. What!? That's not acceptable. Please post some infinity shots, central crop, f/4. I can't live with it if it's true. Originally posted by Hemppo Finally caught an e-mail telling me that my baby is on the way home... Only couple days an I'll get my hands to it. Congrats, it's one of the more exciting lenses I've put on any of my cameras lately. Originally posted by GeneV Seems like a sharpness problem on a lens with a depth of field from 1 meter to infinity wide open is not likely to be a FF or BF problem on the magnitude of the adjustments in the K20d. It probably is time to have Pentax look at it. On a bright day, you could pretty much set the hyperfocal point and turn AF off. Good point. Originally posted by PentHassyKon Replace bold items above with "hatred for jsherman999", "Pentax Forums Marketplace" I hesitated for 10 minutes on a 15mm I saw on the marketplace. I'm glad to see your comparison shots with the 16-45 as that is what I have in my arsenal. The hesitation was due to priorities - DA21, DA40 1st B4 DA15. I'm happy to see that my DA16-45 can pass for all 3 of these limiteds. The contemplation is due to the "large" size of the 16-45. Until I hit a windfall or start getting paid to take photos, I'll have to do the best with what I have. Heaven forbid, jsherman starts a thread on the DA21/DA40. We'll all never sleep at night. Wait, maybe he has.... pls don't tell us. . Yes, the 16-45 is a great alternative. I've owned the DA 40, just didn't like the focal length and max aperture combo enough to keep it. But I've seen some very clean, crisp shots others have posted form that lens, and it locks focus very fast. Never owned the DA 21 - my M 20 f/4 pretty much probably can not be beat by anything at that FL. Sorry to hear about your sharpness problems, Ben - hopefully you have a replacement on the way as we speak. I think it's well worth it. Here's what close-focus, wide-open should look like in real-world shots: Crop: More randomness: .

02-21-2010, 10:44 PM	#191
jsherman999 Veteran Member Join Date: Dec 2007 Photos: Gallery Posts: 8,237 Original Poster	. Snaps from today:

02-21-2010, 11:04 PM	#192
JasonA Forum Member Join Date: Nov 2009 Posts: 70	Wonderful J! I got mine and I don't see any problems with sharpness. Unfortunately, I haven't gotten beyond my front yard with it yet!

02-22-2010, 11:17 AM	#195
GeneV Veteran Member Join Date: Oct 2008 Location: Albuquerque NM Photos: Albums Posts: 9,830	You know, I just logged in to my work computer and saw that my last posted photo crop looks about 1 stop darker than on my home computer. It is a bit of thread drift, but this does make me wonder how different all of the photos we post look to the various participants around the world viewing them on different monitors.