Win a Pentax Limited lens and more - enter in our 2023 end of year giveaway!

D1N0 · 02-10-2015, 12:16 PM - **4 Likes**

So who is designing the new lenses for Pentax? Maybe that's a question for Adam at CP+.

Doundounba · 02-10-2015, 12:22 PM

Originally posted by tapiolan

was this a real lens at the time? planned at least?
I really love the form factor of 40mm limited.

It was a prototype lens for the K-01 that leveraged the fact that the K-01 has no mirror to move the optics into the empty space freed by removing the mirror while keeping the registration distance. Since Pentax appears to have shelved the idea of k-mount mirrorless, I don't think we'll ever see it.

D1N0 · 02-10-2015, 12:26 PM

Maybe somebody is happily using it. It seems to have a to big front element for 40 2.8.

Doundounba · 02-10-2015, 12:29 PM

Originally posted by D1N0

Maybe somebody is happily using it. It seems to have a to big front element for 40 2.8.

The 40mm XS having been released with the K-01, the never-released prototype is definitely not a 40mm. My personal guess is it's a shrunken DA21. But no specs were ever released, AFAIK. But we are drifting off-topic from the roadmap...

D1N0 · 02-10-2015, 12:32 PM

Probably extended to far back for a dslr body. We'll just have to wait for people wrecking their brand new FF with the DA 40mm F2.8 xs.

Doundounba · 02-10-2015, 12:45 PM

Originally posted by D1N0

... We'll just have to wait for people wrecking their brand new FF with the DA 40mm F2.8 xs.

The 40mm XS has no optics protruding into the mirror box, which, I guess, is why it was released with the K-01 and the prototype was not. (Had the K-01 been more successful, they could have released mirrorless-only lenses.) The 40mm XS (which is still on the roadmap, BTW) should work on any Pentax camera that can deal with a screw-drive auto-focus k-mount lens that has no aperture ring. Might be crop-mode only, but won't physically hit the mirror.

D1N0 · 02-10-2015, 01:03 PM

The distance scale looks an awful lot like the 40mm ltd. This might even be a photoshop

I thought the xs also had the protruding bit, just not as long.

EarlVonTapia · 02-10-2015, 01:10 PM

Originally posted by D1N0

It wasn't on any of the roadmaps I could find but is was always on the website. In my search I found one lens that never made it though.

Ah yes, the mythical 12-400mm f2 pancake zoom! Can't wait to see this on the roadmap.

Docrwm · 02-10-2015, 01:58 PM - **3 Likes**

Originally posted by boriscleto

https://www.pentaxforums.com/forums/10-pentax-slr-lens-discussion/274307-what...ing-today.html

One of the worst decisions Hoya made (and that is saying A LOT) was letting Hirakawa Jun go. Conversely one of the smartest decisions Tamron ever made was hiring him immediately.

Mistral75 · 02-10-2015, 02:55 PM

Originally posted by calsan

Not that I shoot 645, but what happened to the recently released 25mm lens?

It was already gone in August 2014 roadmap.

Blue · 02-10-2015, 08:45 PM

Originally posted by D1N0

So who is designing the new lenses for Pentax? Maybe that's a question for Adam at CP+.

Ask this in Adam's thread requesting questions.

Fl_Gulfer · 02-10-2015, 08:48 PM

Looks as though the DA* is Gold and the D FA* is Yellow. That will look good on some of the new K-S2 colors.

Barry Pearson · 02-10-2015, 09:48 PM

Originally posted by robjmitchell

So at FF launch there will be:-
<snip>
maybe 40/2.8, 70/2.2 & 60-250/4

My test of the 60-250mm on a film camera shows full coverage, but softness at the wide end and significant (but not total) vignetting at the long end. More like the sort of corner-quality you get with a kit lens than a pro lens.

Originally posted by WillWeaverRVA

This is an important thing that a lot of people are forgetting. Crop mode seems like a great way to get many of the benefits of FF (much lower noise at high ISOs, etc) even if you don't have FF-compatible glass yet.

One more thing to remember is that the HD 1.4x Rear Converter expands the image circle of a lens. When I tested my DA lenses on a film camera with a Kenko 1.4x converter, it made them more like FF lenses. (It even worked to some extent on the 10-17mm Fisheye!). I hope the Pentax converter doesn't have any traps in it that would stop it doing the same.

rvannatta · 02-10-2015, 11:08 PM

Originally posted by Barry Pearson

My test of the 60-250mm on a film camera shows full coverage, but softness at the wide end and significant (but not total) vignetting at the long end. More like the sort of corner-quality you get with a kit lens than a pro lens.

One more thing to remember is that the HD 1.4x Rear Converter expands the image circle of a lens. When I tested my DA lenses on a film camera with a Kenko 1.4x converter, it made them more like FF lenses. (It even worked to some extent on the 10-17mm Fisheye!). I hope the Pentax converter doesn't have any traps in it that would stop it doing the same.

I'll just be holding my breath for an updated converter that works with my old FA glass.

**Aristophanes** · 02-10-2015, 11:10 PM

Originally posted by ogl

And all DA lenses will work in crop mode.

And if Nikon's experience is worth any input.....no one will care.

02-10-2015, 12:45 PM	#111
Doundounba Veteran Member Join Date: Dec 2012 Location: Montréal QC Photos: Gallery \| Albums Posts: 2,351	Originally posted by D1N0 ... We'll just have to wait for people wrecking their brand new FF with the DA 40mm F2.8 xs. The 40mm XS has no optics protruding into the mirror box, which, I guess, is why it was released with the K-01 and the prototype was not. (Had the K-01 been more successful, they could have released mirrorless-only lenses.) The 40mm XS (which is still on the roadmap, BTW) should work on any Pentax camera that can deal with a screw-drive auto-focus k-mount lens that has no aperture ring. Might be crop-mode only, but won't physically hit the mirror. Last edited by Doundounba; 02-10-2015 at 12:50 PM.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
K-mount lens roadmap updated	Daikokuya	Pentax News and Rumors	571	09-28-2015 03:13 AM
Updated Fuji lens roadmap	filoxophy	Canon, Nikon, Sony, and Other Camera Brands	8	07-31-2014 04:42 AM
Lens road maps	Reptilezz	Troubleshooting and Beginner Help	4	11-11-2013 01:52 PM
Updated Lens Roadmap	Phil A	Pentax Q	2	06-25-2013 01:53 PM
Links for Lens Road Maps	channeler	Pentax News and Rumors	5	04-01-2008 06:30 AM

02-10-2015, 12:16 PM - 4 Likes	#106
D1N0 Pentaxian Join Date: May 2012 Location: --- Photos: Gallery Posts: 6,801	So who is designing the new lenses for Pentax? Maybe that's a question for Adam at CP+.

02-10-2015, 12:22 PM	#107
Doundounba Veteran Member Join Date: Dec 2012 Location: Montréal QC Photos: Gallery \| Albums Posts: 2,351	Originally posted by tapiolan was this a real lens at the time? planned at least? I really love the form factor of 40mm limited. It was a prototype lens for the K-01 that leveraged the fact that the K-01 has no mirror to move the optics into the empty space freed by removing the mirror while keeping the registration distance. Since Pentax appears to have shelved the idea of k-mount mirrorless, I don't think we'll ever see it.

02-10-2015, 12:26 PM	#108
D1N0 Pentaxian Join Date: May 2012 Location: --- Photos: Gallery Posts: 6,801	Maybe somebody is happily using it. It seems to have a to big front element for 40 2.8.

02-10-2015, 12:29 PM	#109
Doundounba Veteran Member Join Date: Dec 2012 Location: Montréal QC Photos: Gallery \| Albums Posts: 2,351	Originally posted by D1N0 Maybe somebody is happily using it. It seems to have a to big front element for 40 2.8. The 40mm XS having been released with the K-01, the never-released prototype is definitely not a 40mm. My personal guess is it's a shrunken DA21. But no specs were ever released, AFAIK. But we are drifting off-topic from the roadmap...

02-10-2015, 12:32 PM	#110
D1N0 Pentaxian Join Date: May 2012 Location: --- Photos: Gallery Posts: 6,801	Probably extended to far back for a dslr body. We'll just have to wait for people wrecking their brand new FF with the DA 40mm F2.8 xs.

02-10-2015, 01:03 PM	#112
D1N0 Pentaxian Join Date: May 2012 Location: --- Photos: Gallery Posts: 6,801	The distance scale looks an awful lot like the 40mm ltd. This might even be a photoshop I thought the xs also had the protruding bit, just not as long.

02-10-2015, 01:10 PM	#113
EarlVonTapia Veteran Member Join Date: Oct 2012 Location: Vancouver Photos: Gallery Posts: 1,207	Originally posted by D1N0 It wasn't on any of the roadmaps I could find but is was always on the website. In my search I found one lens that never made it though. Ah yes, the mythical 12-400mm f2 pancake zoom! Can't wait to see this on the roadmap.

02-10-2015, 01:58 PM - 3 Likes	#114
Docrwm Veteran Member Join Date: Sep 2010 Location: Somewhere in the Southern US Photos: Gallery \| Albums Posts: 12,285	Originally posted by boriscleto https://www.pentaxforums.com/forums/10-pentax-slr-lens-discussion/274307-what...ing-today.html One of the worst decisions Hoya made (and that is saying A LOT) was letting Hirakawa Jun go. Conversely one of the smartest decisions Tamron ever made was hiring him immediately.

02-10-2015, 02:55 PM	#115
Mistral75 Pentaxian Join Date: Feb 2009 Location: Paris, France Posts: 7,386	Originally posted by calsan Not that I shoot 645, but what happened to the recently released 25mm lens? It was already gone in August 2014 roadmap.

02-10-2015, 08:45 PM	#116
Blue Moderator Site Supporter Join Date: Jun 2008 Location: Florida Hill Country Photos: Gallery \| Albums Posts: 17,377	Originally posted by D1N0 So who is designing the new lenses for Pentax? Maybe that's a question for Adam at CP+. Ask this in Adam's thread requesting questions.

Thread Tools	Search this Thread
	Search this Thread: Advanced Search

02-10-2015, 08:48 PM	#117
Fl_Gulfer Veteran Member Join Date: Jul 2007 Location: Florida Gulfer Photos: Albums Posts: 3,054	Looks as though the DA* is Gold and the D FA* is Yellow. That will look good on some of the new K-S2 colors.

02-10-2015, 09:48 PM	#118
Barry Pearson Veteran Member Join Date: Jul 2013 Location: Stockport Posts: 964	Originally posted by robjmitchell So at FF launch there will be:- <snip> maybe 40/2.8, 70/2.2 & 60-250/4 My test of the 60-250mm on a film camera shows full coverage, but softness at the wide end and significant (but not total) vignetting at the long end. More like the sort of corner-quality you get with a kit lens than a pro lens. Originally posted by WillWeaverRVA This is an important thing that a lot of people are forgetting. Crop mode seems like a great way to get many of the benefits of FF (much lower noise at high ISOs, etc) even if you don't have FF-compatible glass yet. One more thing to remember is that the HD 1.4x Rear Converter expands the image circle of a lens. When I tested my DA lenses on a film camera with a Kenko 1.4x converter, it made them more like FF lenses. (It even worked to some extent on the 10-17mm Fisheye!). I hope the Pentax converter doesn't have any traps in it that would stop it doing the same.

02-10-2015, 11:08 PM	#119
rvannatta Pentaxian Join Date: Aug 2007 Location: Apiary, Oregon Photos: Gallery Posts: 1,181	Originally posted by Barry Pearson My test of the 60-250mm on a film camera shows full coverage, but softness at the wide end and significant (but not total) vignetting at the long end. More like the sort of corner-quality you get with a kit lens than a pro lens. One more thing to remember is that the HD 1.4x Rear Converter expands the image circle of a lens. When I tested my DA lenses on a film camera with a Kenko 1.4x converter, it made them more like FF lenses. (It even worked to some extent on the 10-17mm Fisheye!). I hope the Pentax converter doesn't have any traps in it that would stop it doing the same. I'll just be holding my breath for an updated converter that works with my old FA glass.

02-10-2015, 11:10 PM	#120
Aristophanes Site Supporter Join Date: Jul 2008 Location: Rankin Inlet, Nunavut Photos: Albums Posts: 3,948	Originally posted by ogl And all DA lenses will work in crop mode. And if Nikon's experience is worth any input.....no one will care.

Lens Maps Updated

Win a Pentax Limited lens and more - enter in our 2023 end of year giveaway!