So...which lenses work with the K-1?

**Oakland Rob** · 02-17-2016, 06:44 PM

I'm still sorta confused about which lenses will work in FF glory on the K-1.

The guide here doesn't mention the 150-450mm or the 200mm or 300mm teles. The DPReview article says the 200 and 300mm are fully FF, but says the 70 ltd and 40XS are FF only stopped down, and doesn't list the 100mm macro.

What about Samyang/Rokinon primes? Takumars? would basically all the old film era stuff I have work FF? (Boy, glad I invested in all that if these become the major source of FF glass for a while).

I assume F series zooms would also only work cropped...or no?

And assuming the old glass does work FF, I wonder whether say my old Tamron adaptall long zooms (80-210, 60-300), which I think are pretty great anyway, might actually work better than the DA tele zooms? Obviously ignoring stuff like lack of autofocus, etc.

**jatrax** · 02-17-2016, 06:52 PM

If it says DFA then it is a lens designed for digital that covers the full frame image circle. So 150-450 is fully FF compatible

Originally posted by Oakland Rob

Takumars? would basically all the old film era stuff I have work FF?

That would sort of be the definition of FF, so yes all the film gear will work. How well it works, well we will have to see.

Originally posted by Oakland Rob

I assume F series zooms would also only work cropped...or no?

Umm, no. The F series was designed for film or full frame, so they will be fully compatible.

Originally posted by Oakland Rob

I wonder whether say my old Tamron adaptall long zooms (80-210, 60-300), which I think are pretty great anyway, might actually work better than the DA tele zooms?

There are no DA tele-zooms that are FF compatible, though the 60-250 looks like it will be usable with some vignetting. How good your old zooms will be is open to conjecture. On APS-C you have been using only the center of the lens, what they will look like when the whole image circle is used is unknown at this time.

**monochrome** · 02-17-2016, 06:56 PM

Everything that is not a DA lens will cover the full sensor, i.e. 'Work'. Some of the DA lenses are FF designs (200, 300) and a number of others. Anything D-FA for sure works.

There's a test thread in the lens Forum. I'd link but I'm on my phone.

**jatrax** · 02-17-2016, 07:01 PM

Here you go: https://www.pentaxforums.com/forums/54-pentax-lens-articles/31629-da-lenses-f...ts-thread.html

**monochrome** · 02-17-2016, 07:07 PM

Thanks

pathdoc · 02-17-2016, 07:14 PM

PENTAX K-1 Laboratory | PENTAX K-1 Special site | RICOH IMAGING

**Clinton** · 02-17-2016, 08:53 PM

I think the A* 1200 will work just fine.

pathdoc · 02-18-2016, 04:58 AM

Originally posted by Clinton

31/1.8 EE Ltd, 43/1.9 EE Ltd

What are you using the EE's to refer to?

beholder3 · 02-18-2016, 06:50 AM - **1 Like**

Originally posted by Oakland Rob

I'm still sorta confused about which lenses will work in FF glory on the K-1.

Here:
https://www.pentaxforums.com/forums/169-pentax-full-frame/313830-current-pent...w-picture.html

Pentax' own lenses:

Other makers:

Yes some exceptions are not produced any longer, but most are readily available somewhere in shops. If you find some errors, keep them. No whining in this thread.

My underlying test shots are there:
https://www.flickr.com/photos/karlknipser/albums/72157647714026893

Then there are the native Pentax-K used lenses:

(links to PF lenses databases)
All FF-compatible lenses
Current FF-compatible lenses
Autofocus FF-compatible lenses

Autofocus Lenses:

F 100-300/4.5-5.6
F 100/2.8 Macro
F 135/2.8 [IF]
F 17-28/3.5-4.5 Fisheye
F 24-50/4
F 28-80/3.5-4.5
F 28/2.8
F 35-105/4-5.6
F 35-135/3.5-4.5
F 35-70/3.5-4.5
F 35-80/4-5.6
F 50/1.4
F 50/1.7
F 50/2.8 Macro
F 70-210/4-5.6 ED
F 80-200/4.7-5.6
F 85/2.8 Soft
F* 250-600/5.6 ED [IF]
F* 300/4.5 ED [IF]
F* 600/4 ED [IF]
FA 100-300/4.5-5.6
FA 100-300/4.7-5.8
FA 100/2.8 Macro
FA 100/3.5 Macro
FA 135/2.8 [IF]
FA 20-35/4 AL
FA 20/2.8
FA 24-90/3.5-4.5 AL [IF]
FA 28-105/3.2-4.5 AL [IF]
FA 28-105/4-5.6
FA 28-105/4-5.6 [IF]
FA 28-200/3.8-5.6 AL [IF]
FA 28-70/4 AL
FA 28-80/3.5-4.7
FA 28-80/3.5-5.6
FA 28-80/3.5-5.6 AL
FA 28-90/3.5-5.6
FA 28/2.8 AL
FA 28/2.8 Soft
FA 31/1.8 AL ED Limited
FA 35-80/4-5.6
FA 35/2 AL
FA 43/1.9 Limited
FA 50/1.4
FA 50/1.7
FA 50/2.8 Macro
FA 70-200/4-5.6
FA 77/1.8 Limited
FA 80-200/4.7-5.6
FA 80-320/4.5-5.6
FA 85/2.8 Soft
FA* 200/2.8 ED [IF]
FA* 200/4 Macro ED [IF]
FA* 24/2 AL [IF]
FA* 250-600/5.6 ED [IF]
FA* 28-70/2.8 AL
FA* 300/2.8 ED [IF]
FA* 300/4.5 ED [IF]
FA* 400/5.6 ED [IF]
FA* 600/4 ED [IF]
FA* 80-200/2.8 ED [IF]
FA* 85/1.4 [IF]
FA-J 18-35/4-5.6 AL
FA-J 28-80/3.5-5.6 AL
FA-J 75-300/4.5-5.8 AL

Manual Focus:

AF 35-70/2.8
A 100/2.8
A 100/2.8 Macro
A 100/4 Dental Macro
A 100/4 Macro
A 135/2.8
A 15/3.5
A 16/2.8 Fisheye
A 20/2.8
A 200/4
A 24-50/4
A 24/2.8
A 28-135/4
A 28-80/3.5-4.5
A 28/2
A 28/2.8
A 35-105/3.5
A 35-135/3.5-4.5
A 35-210/3.5-4.5
A 35-70/3.5-4.5
A 35-70/4
A 35-80/4-5.6
A 35/2
A 35/2.8
A 400/5.6
A 50/1.2
A 50/1.4
A 50/1.7
A 50/2
A 50/2.8 Macro
A 70-210/4
A 80-200/4.7-5.6
A* 1200/8 ED [IF]
A* 135/1.8
A* 200/2.8 ED
A* 200/4 Macro ED
A* 300/2.8 ED [IF]
A* 300/4
A* 400/2.8 ED [IF]
A* 600/5.6 ED [IF]
A* 85/1.4
K 100/4 Bellows
K 100/4 Macro
K 1000/11 Reflex
K 1000/8
K 105/2.8
K 120/2.8
K 135-600/6.7
K 135/2.5
K 135/3.5
K 15/3.5
K 15/3.5 AL
K 150/4
K 17/4 Fisheye
K 18/3.5
K 20/4
K 200/2.5
K 200/4
K 2000/13.5 Reflex
K 24/2.8
K 24/3.5
K 28-50/3.5-4.5
K 28/2
K 28/3.5
K 28/3.5 Shift
K 30/2.8
K 300/4
K 35/2
K 35/3.5
K 400-600/8-12 Reflex
K 400/5.6
K 45-125/4
K 50/1.2
K 50/1.4
K 50/4 Macro
K 500/4.5
K 55/1.8
K 55/2
K 8.4/2.8 Fisheye
K 80-200/4.5
K 85-210/3.5
K 85-210/4.5
K 85/1.8
K 85/2.2 Soft
M 100/2.8
M 100/4 Dental Macro
M 100/4 Macro
M 120/2.8
M 135/3.5
M 150/3.5
M 20/4
M 200/4
M 2000/13.5 Reflex
M 24-35/3.5
M 24-50/4
M 28-50/3.5-4.5
M 28/2
M 28/2.8
M 28/3.5
M 35-70/2.8-3.5
M 35/1.4
M 35/2
M 35/2.8
M 40-80/2.8-4
M 40/2.8
M 400/5.6
M 50/1.4
M 50/1.7
M 50/2
M 50/4 Macro
M 75-150/4
M 80-200/4.5
M 85/2
M* 300/4

Not even speaking of M42 lenses.

normhead · 02-18-2016, 06:56 AM - **1 Like**

Or how about a visual... what lenses will work with your K-1?
There's a least 75 lenses there.
It makes Sony look like a bunch of slackers.

pathdoc · 02-18-2016, 08:24 AM

They will ALL work in APS-C mode.
Any film-era lens will work in full-frame mode, subject to the need to push the green button for metering on pre-A lenses or engage Av mode if that's how you play with your Takumars.
What you do with the DA lenses is up to you - APS-C/auto mode, full frame and crop in post, or live with the heavy vignetting if you think you can.

**Oakland Rob** · 02-18-2016, 10:37 AM

Thanks guys.

I don't suppose there are comparisons of say a K-3II with a 40mm XS wide open vs same lens wide open in crop mode on the K-1 yet? IOW, is a crop lens on the new FF sensor gonna have better IQ than the same on APS-C sensor?

i83N · 02-18-2016, 12:23 PM

i broke my brain but will DA* 50-135mm cropped or just stopped down?

JinDesu · 02-18-2016, 12:48 PM

Originally posted by i83N

i broke my brain but will DA* 50-135mm cropped or just stopped down?

Per the other thread: DA* 50-135mm F2.8 ED [IF] SDM: -
- indicates does not work for FF

So you'll have to use the cropped mode.

robthebloke · 02-18-2016, 12:52 PM

Originally posted by Oakland Rob

Thanks guys.

I don't suppose there are comparisons of say a K-3II with a 40mm XS wide open vs same lens wide open in crop mode on the K-1 yet? IOW, is a crop lens on the new FF sensor gonna have better IQ than the same on APS-C sensor?

I'll know as soon as my k-1 arrives

02-17-2016, 06:44 PM	#1
Oakland Rob Loyal Site Supporter Join Date: Apr 2015 Location: Bay Area California Photos: Gallery \| Albums Posts: 798	So...which lenses work with the K-1? I'm still sorta confused about which lenses will work in FF glory on the K-1. The guide here doesn't mention the 150-450mm or the 200mm or 300mm teles. The DPReview article says the 200 and 300mm are fully FF, but says the 70 ltd and 40XS are FF only stopped down, and doesn't list the 100mm macro. What about Samyang/Rokinon primes? Takumars? would basically all the old film era stuff I have work FF? (Boy, glad I invested in all that if these become the major source of FF glass for a while). I assume F series zooms would also only work cropped...or no? And assuming the old glass does work FF, I wonder whether say my old Tamron adaptall long zooms (80-210, 60-300), which I think are pretty great anyway, might actually work better than the DA tele zooms? Obviously ignoring stuff like lack of autofocus, etc.

02-18-2016, 06:50 AM - 1 Like	#9
beholder3 Pentaxian Join Date: Dec 2011 Posts: 3,112	Originally posted by Oakland Rob I'm still sorta confused about which lenses will work in FF glory on the K-1. Here: https://www.pentaxforums.com/forums/169-pentax-full-frame/313830-current-pent...w-picture.html Pentax' own lenses: Other makers: Yes some exceptions are not produced any longer, but most are readily available somewhere in shops. If you find some errors, keep them. No whining in this thread. My underlying test shots are there: https://www.flickr.com/photos/karlknipser/albums/72157647714026893 Then there are the native Pentax-K used lenses: (links to PF lenses databases) All FF-compatible lenses Current FF-compatible lenses Autofocus FF-compatible lenses Autofocus Lenses: F 100-300/4.5-5.6 F 100/2.8 Macro F 135/2.8 [IF] F 17-28/3.5-4.5 Fisheye F 24-50/4 F 28-80/3.5-4.5 F 28/2.8 F 35-105/4-5.6 F 35-135/3.5-4.5 F 35-70/3.5-4.5 F 35-80/4-5.6 F 50/1.4 F 50/1.7 F 50/2.8 Macro F 70-210/4-5.6 ED F 80-200/4.7-5.6 F 85/2.8 Soft F* 250-600/5.6 ED [IF] F* 300/4.5 ED [IF] F* 600/4 ED [IF] FA 100-300/4.5-5.6 FA 100-300/4.7-5.8 FA 100/2.8 Macro FA 100/3.5 Macro FA 135/2.8 [IF] FA 20-35/4 AL FA 20/2.8 FA 24-90/3.5-4.5 AL [IF] FA 28-105/3.2-4.5 AL [IF] FA 28-105/4-5.6 FA 28-105/4-5.6 [IF] FA 28-200/3.8-5.6 AL [IF] FA 28-70/4 AL FA 28-80/3.5-4.7 FA 28-80/3.5-5.6 FA 28-80/3.5-5.6 AL FA 28-90/3.5-5.6 FA 28/2.8 AL FA 28/2.8 Soft FA 31/1.8 AL ED Limited FA 35-80/4-5.6 FA 35/2 AL FA 43/1.9 Limited FA 50/1.4 FA 50/1.7 FA 50/2.8 Macro FA 70-200/4-5.6 FA 77/1.8 Limited FA 80-200/4.7-5.6 FA 80-320/4.5-5.6 FA 85/2.8 Soft FA* 200/2.8 ED [IF] FA* 200/4 Macro ED [IF] FA* 24/2 AL [IF] FA* 250-600/5.6 ED [IF] FA* 28-70/2.8 AL FA* 300/2.8 ED [IF] FA* 300/4.5 ED [IF] FA* 400/5.6 ED [IF] FA* 600/4 ED [IF] FA* 80-200/2.8 ED [IF] FA* 85/1.4 [IF] FA-J 18-35/4-5.6 AL FA-J 28-80/3.5-5.6 AL FA-J 75-300/4.5-5.8 AL Manual Focus: AF 35-70/2.8 A 100/2.8 A 100/2.8 Macro A 100/4 Dental Macro A 100/4 Macro A 135/2.8 A 15/3.5 A 16/2.8 Fisheye A 20/2.8 A 200/4 A 24-50/4 A 24/2.8 A 28-135/4 A 28-80/3.5-4.5 A 28/2 A 28/2.8 A 35-105/3.5 A 35-135/3.5-4.5 A 35-210/3.5-4.5 A 35-70/3.5-4.5 A 35-70/4 A 35-80/4-5.6 A 35/2 A 35/2.8 A 400/5.6 A 50/1.2 A 50/1.4 A 50/1.7 A 50/2 A 50/2.8 Macro A 70-210/4 A 80-200/4.7-5.6 A* 1200/8 ED [IF] A* 135/1.8 A* 200/2.8 ED A* 200/4 Macro ED A* 300/2.8 ED [IF] A* 300/4 A* 400/2.8 ED [IF] A* 600/5.6 ED [IF] A* 85/1.4 K 100/4 Bellows K 100/4 Macro K 1000/11 Reflex K 1000/8 K 105/2.8 K 120/2.8 K 135-600/6.7 K 135/2.5 K 135/3.5 K 15/3.5 K 15/3.5 AL K 150/4 K 17/4 Fisheye K 18/3.5 K 20/4 K 200/2.5 K 200/4 K 2000/13.5 Reflex K 24/2.8 K 24/3.5 K 28-50/3.5-4.5 K 28/2 K 28/3.5 K 28/3.5 Shift K 30/2.8 K 300/4 K 35/2 K 35/3.5 K 400-600/8-12 Reflex K 400/5.6 K 45-125/4 K 50/1.2 K 50/1.4 K 50/4 Macro K 500/4.5 K 55/1.8 K 55/2 K 8.4/2.8 Fisheye K 80-200/4.5 K 85-210/3.5 K 85-210/4.5 K 85/1.8 K 85/2.2 Soft M 100/2.8 M 100/4 Dental Macro M 100/4 Macro M 120/2.8 M 135/3.5 M 150/3.5 M 20/4 M 200/4 M 2000/13.5 Reflex M 24-35/3.5 M 24-50/4 M 28-50/3.5-4.5 M 28/2 M 28/2.8 M 28/3.5 M 35-70/2.8-3.5 M 35/1.4 M 35/2 M 35/2.8 M 40-80/2.8-4 M 40/2.8 M 400/5.6 M 50/1.4 M 50/1.7 M 50/2 M 50/4 Macro M 75-150/4 M 80-200/4.5 M 85/2 M* 300/4 Not even speaking of M42 lenses.

02-18-2016, 06:56 AM - 1 Like	#10
normhead Pentaxian Join Date: Jun 2007 Location: Near Algonquin Park Photos: Gallery \| Albums Posts: 40,451	Or how about a visual... what lenses will work with your K-1? There's a least 75 lenses there. It makes Sony look like a bunch of slackers. Last edited by normhead; 02-18-2016 at 08:49 AM.

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02-17-2016, 06:52 PM	#2
jatrax Site Supporter Join Date: May 2010 Location: Washington Cascades Photos: Gallery \| Albums Posts: 12,991	If it says DFA then it is a lens designed for digital that covers the full frame image circle. So 150-450 is fully FF compatible Originally posted by Oakland Rob Takumars? would basically all the old film era stuff I have work FF? That would sort of be the definition of FF, so yes all the film gear will work. How well it works, well we will have to see. Originally posted by Oakland Rob I assume F series zooms would also only work cropped...or no? Umm, no. The F series was designed for film or full frame, so they will be fully compatible. Originally posted by Oakland Rob I wonder whether say my old Tamron adaptall long zooms (80-210, 60-300), which I think are pretty great anyway, might actually work better than the DA tele zooms? There are no DA tele-zooms that are FF compatible, though the 60-250 looks like it will be usable with some vignetting. How good your old zooms will be is open to conjecture. On APS-C you have been using only the center of the lens, what they will look like when the whole image circle is used is unknown at this time.

02-17-2016, 06:56 PM	#3
monochrome Loyal Site Supporter Join Date: Mar 2008 Location: Working From Home Photos: Gallery \| Albums Posts: 26,276	Everything that is *not* a DA lens will cover the full sensor, i.e. 'Work'. Some of the DA lenses are FF designs (200, 300) and a number of others. Anything D-FA for sure works. There's a test thread in the lens Forum. I'd link but I'm on my phone.

02-17-2016, 07:01 PM	#4
jatrax Site Supporter Join Date: May 2010 Location: Washington Cascades Photos: Gallery \| Albums Posts: 12,991	Here you go: https://www.pentaxforums.com/forums/54-pentax-lens-articles/31629-da-lenses-f...ts-thread.html

02-17-2016, 07:07 PM	#5
monochrome Loyal Site Supporter Join Date: Mar 2008 Location: Working From Home Photos: Gallery \| Albums Posts: 26,276	Thanks

02-17-2016, 07:14 PM	#6
pathdoc Pentaxian Join Date: Mar 2015 Photos: Gallery \| Albums Posts: 6,381	PENTAX K-1 Laboratory \| PENTAX K-1 Special site \| RICOH IMAGING

02-17-2016, 08:53 PM	#7
Clinton Site Supporter Join Date: Feb 2010 Location: Salt Lake City, UT Photos: Gallery \| Albums Posts: 1,910	I think the A* 1200 will work just fine.

02-18-2016, 04:58 AM	#8
pathdoc Pentaxian Join Date: Mar 2015 Photos: Gallery \| Albums Posts: 6,381	Originally posted by Clinton 31/1.8 EE Ltd, 43/1.9 EE Ltd What are you using the EE's to refer to?

02-18-2016, 08:24 AM	#11
pathdoc Pentaxian Join Date: Mar 2015 Photos: Gallery \| Albums Posts: 6,381	They will ALL work in APS-C mode. Any film-era lens will work in full-frame mode, subject to the need to push the green button for metering on pre-A lenses or engage Av mode if that's how you play with your Takumars. What you do with the DA lenses is up to you - APS-C/auto mode, full frame and crop in post, or live with the heavy vignetting if you think you can.

02-18-2016, 10:37 AM	#12
Oakland Rob Loyal Site Supporter Join Date: Apr 2015 Location: Bay Area California Photos: Gallery \| Albums Posts: 798 Original Poster	Thanks guys. I don't suppose there are comparisons of say a K-3II with a 40mm XS wide open vs same lens wide open in crop mode on the K-1 yet? IOW, is a crop lens on the new FF sensor gonna have better IQ than the same on APS-C sensor?

02-18-2016, 12:23 PM	#13
i83N Veteran Member Join Date: Mar 2009 Location: Lithuania Photos: Gallery Posts: 1,203	i broke my brain but will DA* 50-135mm cropped or just stopped down?

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02-18-2016, 12:48 PM	#14
JinDesu Veteran Member Join Date: Jun 2011 Location: New York City Photos: Gallery Posts: 5,638	Originally posted by i83N i broke my brain but will DA* 50-135mm cropped or just stopped down? Per the other thread: DA* 50-135mm F2.8 ED [IF] SDM: - - indicates does not work for FF So you'll have to use the cropped mode.

02-18-2016, 12:52 PM	#15
robthebloke Veteran Member Join Date: Sep 2013 Location: Sydney Photos: Albums Posts: 844	Originally posted by Oakland Rob Thanks guys. I don't suppose there are comparisons of say a K-3II with a 40mm XS wide open vs same lens wide open in crop mode on the K-1 yet? IOW, is a crop lens on the new FF sensor gonna have better IQ than the same on APS-C sensor? I'll know as soon as my k-1 arrives