[house]

As a prime shooter I've told myself not to consider the da* 11-18 because it's a generously sized zoom. So when looking at a Irix 15 I noticed that the Irix is actually larger! (same length but wider). Kills that argument... price is still smaller though. Of course the Irix is full frame but that's of little comfort for an apsc shooter.

[acoufap]

As a prime shooter I've told myself not to consider the da* 11-18 because it's a generously sized zoom. So when looking at a Irix 15 I noticed that the Irix is actually larger! (same length but wider). Kills that argument... price is still smaller though. Of course the Irix is full frame but that's of little comfort for an apsc shooter.

The DA*11-18 is usable at 15 mm (w/o hood) and 16 to 18mm with hood attached in K-1 FF mode. IMO no real problem there. And the lens has a smaller filter thread (82 mm) than the IRIX 15 (95 mm). So you can use smaller filters you may already own.

[acoufap]

The DA*11-18 is usable at 15 mm (w/o hood) and 16 to 18mm with hood attached in K-1 FF mode. IMO no real problem there. And the lens has a smaller filter thread (82 mm) than the IRIX 15 (95 mm). So you can use smaller filters you may already own.

Here are some of my latest images ...


K-1 • FF mode • DA*11-18@15 w/o hood (FL position in between lens marks 14 and 16), in this case reported in exif as 14


K-1 • FF mode • DA*11-18@16


K-1 • FF mode • DA*11-18@16


K-1 • FF mode • DA*11-18@18

[Biosaurus]

Hi !
I'm really enjoying this lens, I think it is the best one i ever owned.


KP - 18mm - ƒ/2.8 - 1/800 - ISO 100


KP - 11mm - ƒ/22 - 1/6 - ISO 100


KP - 11mm - ƒ/8 - 1/250 - ISO 100

Have a nice day,
cheers from France.

Biosaurus

[zapp]

Hate to say it but I’m holding out for the 85 and sticking with the HD Limited 20-40 for the KP.

I’ve said right along if they actually release this lens I expect a flagship APSc to follow and eventually new *16-50/2.8 and *50-135/2.8 at the *11-18/2.8 standard.

The 11-18 is the lens before the 85.... that is the one I am waiting for.
At the same time the 11-18 in crop mode covers wide angles with filter and with a real Pentax style lens.

[Lev]

The 11-18 is the lens before the 85.... that is the one I am waiting for.
At the same time the 11-18 in crop mode covers wide angles with filter and with a real Pentax style lens.

Same here, I just have to have new 85mm!!!

[bobbotron]

Man oh man, I would love one of these lenses and a KP!

---------- Post added 06-21-19 at 10:24 AM ----------

As a prime shooter I've told myself not to consider the da* 11-18 because it's a generously sized zoom. So when looking at a Irix 15 I noticed that the Irix is actually larger! (same length but wider). Kills that argument... price is still smaller though. Of course the Irix is full frame but that's of little comfort for an apsc shooter.

A friend of mine has one of the Irix's. Great lens, but it is HUGE.

[ZombieArmy]

Man oh man, I would love one of these lenses and a KP!

Imagine the temptation when you own a KP and don't own this lens

[Sandy Hancock]

It is internal focus and internal zoom.

I have to retract this statement. Looking closer, the front element does in fact move very slightly in and then out again through its zoom range, so it is NOT truly internal zoom.

[BarneyL]

Seems like our favourite Pentax youtuber got his hands on the lens in question:

You Tube

You Tube

Looking forward to the comparison with Fujifilm XF 8-16

[Karen the Star]

It looks gorgeous imo. Perhaps development started before KAF4? Whatever the reason, it is nice to be supported on older bodies.


I don't like the wording on that page though about the trio of lenses. To me, that implies the DA* 16-50 SDM and 50-135 SDM are not getting revisions to either coatings or motor designs.


There was a rumor on the forums awhile back about those two lenses possibly seeing a refresh this year. I'm not so sure about that anymore..

God I swear I love 50-135 so much if Richo give me a refresh design I will buy it whatever how much does it cost╰(*´︶`*)╯♡

[acoufap]

@cometguy ... you asked about 11mm @ FF mode. Below you can see one of my first shots where I examined the lens' restrictions in February 2019.

K-1 • (FF) Square mode • DA*11-18 @ 11 • w/o hood ...



It's more than clear that this isn't a FF lens.



Please read my words in the PF Camera Review section to get more info about my testing of FF capabilities and restrictions. From time to time I add some new findings.

[acoufap]

Never thought about using the DA*11-18 in combination with composition adjustment. But now somehow I instantly was interested. So a boring test has to be done. Look at this glorious subject.

Questions:

1. Will the DA*11-18 show dark corners when I choose K-1 FF mode and 18mm?
2. For many subjects I like 4:3 ratio (like that of the 645Z) more than 3:2. How much pixel increase do I get when expanding the image sensor size by composition adjustment for 3:2 and 4:3 crops?

Here we go - the simple experiment recipe:

1. Make four corner images (upper-left, upper-right, lower-right and lower-left) and put them together automatically using PTGui.
2. Crop the image size of the PTGui result to 4:3 and 3:2 ratio.


i. A single standard FF image. 3:2 standard: 7360 x 4912px = 36 152 320 px => ~ 36 MP


ii. Four corner composition adjustment and PTGui computed "panorama" image - 2 columns, 2 rows: 7981 x 5507 px = 43 951 367 px => ~ 44 MP


iii. PTGui computed "panorama" image - cropped to 4:3 ratio: 7343 x 5507px = 40 437 901 px => ~ 40 MP. Still an advantage for 645Z (53 MP) but a little less and on par with 645D (40 MP). I think the DFA25mm is the widest MF Pentax lens. This image shows wider angles.


iv. PTGui computed "panorama" image - cropped to 3:2 ratio: 7981 x 5321px = 42 466 901 px => ~ 42 MP

Answers to my previous questions:

1) I didn't get dark corners. So the image circle of the DA*11-18 is large enough to work properly with applying composition adjustment - really nice! DA*11-18 delivers at least at 18mm!

2) Depending on the subject the sizes of the expanded sensor area show that it may be beneficial to use composition adjustment. If we crop a standard K-1 image to 4:3 ratio we get 6549 x 4912 px = 32 168 688 px => 32 MP.

[cometguy]

@cometguy ... you asked about 11mm @ FF mode. Below you can see one of my first shots where I examined the lens' restrictions in February 2019.

K-1 • (FF) Square mode • DA*11-18 @ 11 • w/o hood ...



It's more than clear that this isn't a FF lens.



Please read my words in the PF Camera Review section to get more info about my testing of FF capabilities and restrictions. From time to time I add some new findings.

thanks for this very clear illustration!

[acoufap]

100% crop of an image I captured yesterday. K-1, FF mode, DA*11-18 @ 16, f/8 ...



Do you find this snippet within the full-sized K-1 image?



... of course.

The basic file is a PSR DNG file. My Capture One Pro development was better than what I could derive using all four pixel shifted images in Raw Therapee. My inability to use Raw Therapee to full extent - maybe. I like the result I got using only simple adjustments in Capture One Pro very much. So no problem I guess.