DA 16-45 on the K-1?

DSLRnovice · 04-06-2019, 07:40 AM

On the K-20 the 16-45 covered many of my landscape needs. For the K-1 I have the DFA 28-105 which is good also. I picked up the Sigma Super Wide II 24mm, and have been thinking about something wider. I have not thought much about the 16-45 for full frame, but have found that I can get down to 20mm without significant vignetting at moderate apertures.

The color and contrast might make the 16-45, as well as the zoom capabilities worthwhile compared to older lenses like the A20. Is anyone regularly using this lens for the K-1? Newer choices seem to be out of my price range for now.

Dan

**Ahab** · 04-06-2019, 09:04 AM - **1 Like**

I use the 16-45 on my K-1 almost exclusively and the 28-105 on my K-1 II.

DSLRnovice · 04-07-2019, 04:09 PM

Originally posted by Ahab

I use the 16-45 on my K-1 almost exclusively and the 28-105 on my K-1 II.

Have you made any comparisons of the 16-45 with other lenses, like older primes?

Dan

**Ahab** · 04-08-2019, 09:37 AM

Yes, but not in any great detail. Have all the primes but alas don't get to use them much anymore.

normhead · 04-08-2019, 09:58 AM

Originally posted by Ahab

Yes, but not in any great detail. Have all the primes but alas don't get to use them much anymore.

So the 16-45 works pretty good for you then.... there's a lens I never considered, but 16mm on FF has to be pretty decent UWA. Hows the sharpness and distortion etc. ?

DSLRnovice · 04-10-2019, 08:16 AM

Did some playing around with the 16-45 on the K-1. I might at least keep it for home movies, for the zoom and wide angle features. It is usable around 20mm on. For still landscape photos on the K-1, I find that infinity focus is best. The curvature of field helps the near things and the outer edges to be sharper at f8 and beyond. I have yet to find how much acceptable enlargement I can get with this technique.

Dan

TerryL · 04-10-2019, 05:39 PM - **1 Like**

Originally posted by DSLRnovice

On the K-20 the 16-45 covered many of my landscape needs. For the K-1 I have the DFA 28-105 which is good also. I picked up the Sigma Super Wide II 24mm, and have been thinking about something wider. I have not thought much about the 16-45 for full frame, but have found that I can get down to 20mm without significant vignetting at moderate apertures.

The color and contrast might make the 16-45, as well as the zoom capabilities worthwhile compared to older lenses like the A20. Is anyone regularly using this lens for the K-1? Newer choices seem to be out of my price range for now.

Dan

I like the Irix 15 on my K-1. Set the lens once using the hyperlocal scale, and leave it. Very sharp. Great build quality. Can also be used on crop sensors.
Terry

DSLRnovice · 04-11-2019, 07:27 AM

Originally posted by TerryL

I like the Irix 15 on my K-1. Set the lens once using the hyperlocal scale, and leave it. Very sharp. Great build quality. Can also be used on crop sensors.
Terry

That looks like and interesting lens. I am more interested in 20mm FL right now.

Dan

normhead · 04-12-2019, 07:24 AM

Rokinon/Samyang is your friend.

funktionsfrei · 04-12-2019, 02:33 PM

The DA16-45 is an APS-C lens, thus not really useful on the K-1.

To get the same image angle on the K-1, you'd need a 24-75 lens.

For unfathomable reasons, Pentax decided to create a 28-105mm lens instead of an equivalent to the DA16-85, which would have been a 24-128. The four missing millimetres at the wide end are essential.

For real wide angle, you'd better get the Sigma 12-24 (in contrast to the DA12-24 the Sigma is a "full frame" lens), or a prime like the 11mm irix or the new Samyang 10/3.5 (the widest rectilinear ultra-super-duper wideangle lens for "full frame"). For reasons of sheer and utter stupidity*, Sigma ceased production of the 12-24 in Pentax mount around the time the K-1 came out.

*) No, that's not marketing. That's a dumb decision. The K-1 is the first camera since the end of the film era that actually can use the lens, and they quit making it -- after ten years of selling this lens for uses below it's potential on APS-C.

DSLRnovice · 04-18-2019, 01:47 PM

Originally posted by funktionsfrei

The DA16-45 is an APS-C lens, thus not really useful on the K-1.

To get the same image angle on the K-1, you'd need a 24-75 lens.
.

A 24-75 or 24-128 would be handy, but with film I found the 28-100 zoom very useful. I don't mind changing lenses, and I really don't need a 12-24 full frame lens at the moment. The DA 16-45 covers the full frame from 20-45. I realize that it might not be the best option, hence my original question. What I need to find is a subject that would suit the 20-28 range to try it out, since I am covered after that with the 28-105.

Dan

funktionsfrei · 04-19-2019, 04:50 AM

Originally posted by DSLRnovice

What I need to find is a subject that would suit the 20-28 range

Well, the 15-30 seems to be the answer to your need, a pricey one, though.

04-06-2019, 07:40 AM	#1
DSLRnovice Senior Member Join Date: Jul 2008 Posts: 192	DA 16-45 on the K-1? On the K-20 the 16-45 covered many of my landscape needs. For the K-1 I have the DFA 28-105 which is good also. I picked up the Sigma Super Wide II 24mm, and have been thinking about something wider. I have not thought much about the 16-45 for full frame, but have found that I can get down to 20mm without significant vignetting at moderate apertures. The color and contrast might make the 16-45, as well as the zoom capabilities worthwhile compared to older lenses like the A20. Is anyone regularly using this lens for the K-1? Newer choices seem to be out of my price range for now. Dan

04-08-2019, 09:58 AM	#5
normhead Pentaxian Join Date: Jun 2007 Location: Near Algonquin Park Photos: Gallery \| Albums Posts: 40,451	Originally posted by Ahab Yes, but not in any great detail. Have all the primes but alas don't get to use them much anymore. So the 16-45 works pretty good for you then.... there's a lens I never considered, but 16mm on FF has to be pretty decent UWA. Hows the sharpness and distortion etc. ? Last edited by normhead; 04-12-2019 at 07:23 AM.

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04-06-2019, 09:04 AM - 1 Like	#2
Ahab Site Supporter Join Date: Jul 2007 Location: Arnold, Md. Photos: Gallery \| Albums Posts: 762	I use the 16-45 on my K-1 almost exclusively and the 28-105 on my K-1 II.

04-07-2019, 04:09 PM	#3
DSLRnovice Senior Member Join Date: Jul 2008 Posts: 192 Original Poster	Originally posted by Ahab I use the 16-45 on my K-1 almost exclusively and the 28-105 on my K-1 II. Have you made any comparisons of the 16-45 with other lenses, like older primes? Dan

04-08-2019, 09:37 AM	#4
Ahab Site Supporter Join Date: Jul 2007 Location: Arnold, Md. Photos: Gallery \| Albums Posts: 762	Yes, but not in any great detail. Have all the primes but alas don't get to use them much anymore.

04-10-2019, 08:16 AM	#6
DSLRnovice Senior Member Join Date: Jul 2008 Posts: 192 Original Poster	Did some playing around with the 16-45 on the K-1. I might at least keep it for home movies, for the zoom and wide angle features. It is usable around 20mm on. For still landscape photos on the K-1, I find that infinity focus is best. The curvature of field helps the near things and the outer edges to be sharper at f8 and beyond. I have yet to find how much acceptable enlargement I can get with this technique. Dan

04-10-2019, 05:39 PM - 1 Like	#7
TerryL Pentaxian Join Date: Jan 2018 Location: Virginia, USA Photos: Albums Posts: 850	Originally posted by DSLRnovice On the K-20 the 16-45 covered many of my landscape needs. For the K-1 I have the DFA 28-105 which is good also. I picked up the Sigma Super Wide II 24mm, and have been thinking about something wider. I have not thought much about the 16-45 for full frame, but have found that I can get down to 20mm without significant vignetting at moderate apertures. The color and contrast might make the 16-45, as well as the zoom capabilities worthwhile compared to older lenses like the A20. Is anyone regularly using this lens for the K-1? Newer choices seem to be out of my price range for now. Dan I like the Irix 15 on my K-1. Set the lens once using the hyperlocal scale, and leave it. Very sharp. Great build quality. Can also be used on crop sensors. Terry

04-11-2019, 07:27 AM	#8
DSLRnovice Senior Member Join Date: Jul 2008 Posts: 192 Original Poster	Originally posted by TerryL I like the Irix 15 on my K-1. Set the lens once using the hyperlocal scale, and leave it. Very sharp. Great build quality. Can also be used on crop sensors. Terry That looks like and interesting lens. I am more interested in 20mm FL right now. Dan

04-12-2019, 07:24 AM	#9
normhead Pentaxian Join Date: Jun 2007 Location: Near Algonquin Park Photos: Gallery \| Albums Posts: 40,451	Rokinon/Samyang is your friend.

04-12-2019, 02:33 PM	#10
funktionsfrei Senior Member Join Date: Feb 2012 Posts: 183	The DA16-45 is an APS-C lens, thus not really useful on the K-1. To get the same image angle on the K-1, you'd need a 24-75 lens. For unfathomable reasons, Pentax decided to create a 28-105mm lens instead of an equivalent to the DA16-85, which would have been a 24-128. The four missing millimetres at the wide end are essential. For real wide angle, you'd better get the Sigma 12-24 (in contrast to the DA12-24 the Sigma is a "full frame" lens), or a prime like the 11mm irix or the new Samyang 10/3.5 (the widest rectilinear ultra-super-duper wideangle lens for "full frame"). For reasons of sheer and utter stupidity, Sigma ceased production of the 12-24 in Pentax mount around the time the K-1 came out. ) No, that's not marketing. That's a dumb decision. The K-1 is the first camera since the end of the film era that actually can use the lens, and they quit making it -- after ten years of selling this lens for uses below it's potential on APS-C.

04-18-2019, 01:47 PM	#11
DSLRnovice Senior Member Join Date: Jul 2008 Posts: 192 Original Poster	Originally posted by funktionsfrei The DA16-45 is an APS-C lens, thus not really useful on the K-1. To get the same image angle on the K-1, you'd need a 24-75 lens. . A 24-75 or 24-128 would be handy, but with film I found the 28-100 zoom very useful. I don't mind changing lenses, and I really don't need a 12-24 full frame lens at the moment. The DA 16-45 covers the full frame from 20-45. I realize that it might not be the best option, hence my original question. What I need to find is a subject that would suit the 20-28 range to try it out, since I am covered after that with the 28-105. Dan

04-19-2019, 04:50 AM	#12
funktionsfrei Senior Member Join Date: Feb 2012 Posts: 183	Originally posted by DSLRnovice What I need to find is a subject that would suit the 20-28 range Well, the 15-30 seems to be the answer to your need, a pricey one, though.

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