Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
12-12-2014, 03:15 PM   #1
Senior Member




Join Date: Dec 2007
Location: Mechanicsburg, PA
Posts: 176
A new lens I'd like to see

Has anyone else noticed the new Canon EF-S 24mm f2.8 pancake lens (APS-C)? All of $150 at B&H. I'd love one of these in a Pentax mount. How about it, Pentax? It would be fine even with the slotted screw focusing set-up.

12-12-2014, 03:30 PM   #2
Administrator
Site Webmaster
Adam's Avatar

Join Date: Sep 2006
Location: Arizona
Photos: Gallery | Albums
Posts: 51,584
Would be a nice idea for a budget lens, but if you can afford it the DA 21 already fills the gap.

Adam
PentaxForums.com Webmaster (Site Usage Guide | Site Help | My Photography)



PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:
12-12-2014, 03:36 PM   #3
Veteran Member




Join Date: Apr 2013
Location: Northern Minnesota
Photos: Gallery | Albums
Posts: 1,812
QuoteOriginally posted by mechmike10 Quote
Has anyone else noticed the new Canon EF-S 24mm f2.8 pancake lens (APS-C)? All of $150 at B&H. I'd love one of these in a Pentax mount. How about it, Pentax? It would be fine even with the slotted screw focusing set-up.
The DA 21 Ltd is a great lens.
12-12-2014, 03:40 PM   #4
Veteran Member




Join Date: Jan 2010
Location: Michigan
Photos: Gallery
Posts: 2,207
The SMC Pentax (K) 1:2.8 24mm is an excellent lens on the Pentax dslr *, and PF member dcshooter did a great job restoring the one I have.
Edit: * And also on the 35mm Pentax MX

Edit2 My version is a K, not an -M


Last edited by wombat2go; 12-13-2014 at 07:59 AM.
12-12-2014, 04:01 PM   #5
Veteran Member




Join Date: Sep 2013
Location: Pasadena, CA
Photos: Albums
Posts: 1,126
QuoteOriginally posted by mechmike10 Quote
Has anyone else noticed the new Canon EF-S 24mm f2.8 pancake lens (APS-C)? All of $150 at B&H. I'd love one of these in a Pentax mount. How about it, Pentax? It would be fine even with the slotted screw focusing set-up.
I did right away. I would was quite jealous of this option, although I would love 24-28mm F2 for $200 instead.
12-12-2014, 04:13 PM   #6
Veteran Member
robjmitchell's Avatar

Join Date: Oct 2007
Location: Melbourne Aus
Posts: 1,776
I suspect the hole will be filled by a fast FF weather sealed lens down the track. It won't be $200.
12-12-2014, 04:28 PM   #7
Veteran Member




Join Date: Sep 2013
Location: Pasadena, CA
Photos: Albums
Posts: 1,126
QuoteOriginally posted by robjmitchell Quote
I suspect the hole will be filled by a fast FF weather sealed lens down the track. It won't be $200.
I don't suspect that either. It's difficult to find a cheap and fast 35mm equiv. for any system.

12-12-2014, 09:30 PM   #8
Site Supporter
Site Supporter
Digitalis's Avatar

Join Date: Mar 2009
Location: Melbourne, Victoria
Photos: Gallery
Posts: 11,694
QuoteOriginally posted by wombat2go Quote
The SMC Pentax -M 1:2.8 24mm is an excellent lens on the Pentax dslr *
I have the K 24mm f/2.8 which has a ridiculously short focus throw for such a wide angle lens. Other than the DA21 the sigma 18-35mm f/1.8 ART is really the only other option. But that lens is massive and isn't even remotely capable of covering FX format at focal lengths below 32mm. The sigma 15-30mm f/3.5-4.5 is an interesting FX format lens but it is far from compact.


Pentax K 24mm f/2.8, SMCP-FA31mm f/1.8 Limited, Sigma 15-30mm f/3.5-4.5, Sigma 18-35mm f/1.8.
12-12-2014, 09:41 PM   #9
Veteran Member
JinDesu's Avatar

Join Date: Jun 2011
Location: New York City
Photos: Gallery
Posts: 5,638
Or just ask for an XS version of the 21 Ltd. It'd be about 75% the price (given the relationship of the 40mm XS to the 40mm Ltd) and quite a bit thinner.
12-13-2014, 12:12 AM   #10
Veteran Member




Join Date: Sep 2013
Location: Pasadena, CA
Photos: Albums
Posts: 1,126
QuoteOriginally posted by Digitalis Quote
I have the K 24mm f/2.8 which has a ridiculously short focus throw for such a wide angle lens. Other than the DA21 the sigma 18-35mm f/1.8 ART is really the only other option. But that lens is massive and isn't even remotely capable of covering FX format at focal lengths below 32mm. The sigma 15-30mm f/3.5-4.5 is an interesting FX format lens but it is far from compact.


Pentax K 24mm f/2.8, SMCP-FA31mm f/1.8 Limited, Sigma 15-30mm f/3.5-4.5, Sigma 18-35mm f/1.8.
The older Sigmas 20, 24, 28, F1.8 are there too. Also large lenses, but at least they are fast and focus close.
12-13-2014, 08:06 AM   #11
Veteran Member




Join Date: Jan 2010
Location: Michigan
Photos: Gallery
Posts: 2,207
QuoteOriginally posted by Digitalis Quote
I have the K 24mm f/2.8 which has a ridiculously short focus throw for such a wide angle lens.
Thanks Digitalis, My version is also a K and I amended my post.
Yes the focus throw is only 1/4 turn, the reasons for that may be known to the designers from the past.
Maybe due to the DOF, by the scales ( for 35mm format) the 24mm lens has f/8 DOF from about 1 metre to infinity.

With the split in the MX viewfinder it is still possible to bring the image into sharp focus.
( Now that I have the interocular implant in my focussing eye!)
12-13-2014, 06:12 PM   #12
Senior Member




Join Date: Dec 2007
Location: Mechanicsburg, PA
Posts: 176
Original Poster
I'm sure the Pentax 21 is a wonderful lens, but at $567 vs. $150, I don't see it. To justify the price difference it would have to be 3.78 times better, which I doubt. I don't realistically expect to see Pentax build such a lens because it would certainly cannibalize sales of the more expensive lens.
12-13-2014, 06:55 PM   #13
Site Supporter
Site Supporter
Digitalis's Avatar

Join Date: Mar 2009
Location: Melbourne, Victoria
Photos: Gallery
Posts: 11,694
QuoteOriginally posted by wombat2go Quote
Yes the focus throw is only 1/4 turn, the reasons for that may be known to the designers from the past. Maybe due to the DOF, by the scales ( for 35mm format) the 24mm lens has f/8 DOF from about 1 metre to infinity.

I haven't used the K 24 f/2.8 all that much since I got my Sigma 18-35mm f/1.8 ART, But I can say your theory about the K24 is sound, Pentax wanted this lens to be used for the snapshot photographers - hence the hyperfocal marking which makes it easy to take photos: just set the lens to f/8 and you're done. Though the K24 has an uncommon 52mm filter thread (which the K50mm f/1.2 has) is a bit mystifying.
12-13-2014, 09:33 PM   #14
Pentaxian




Join Date: Nov 2011
Photos: Gallery | Albums
Posts: 4,309
QuoteOriginally posted by Digitalis Quote
Though the K24 has an uncommon 52mm filter thread (which the K50mm f/1.2 has) is a bit mystifying.
The other quality prime option at around 24mm, the ZK 25/2.8, has a 58mm thread.

I believe that Pentax would have liked to have designed the K24/2.8 for a 49mm thread,
since they always listed it in with the M lenses that standardized on 49mm,
but I suspect that it just wasn't possible given the size of the front element.

---------- Post added 12-13-14 at 10:37 PM ----------

QuoteOriginally posted by mechmike10 Quote
I don't realistically expect to see Pentax build such a lens because it would certainly cannibalize sales of the more expensive lens.
Well, Pentax has done cheapo versions at 35mm and 50mm,
but I don't think those lenses are cannibalizing the DA 35 Ltd or DA*55.
12-13-2014, 09:40 PM   #15
Site Supporter
Site Supporter
Digitalis's Avatar

Join Date: Mar 2009
Location: Melbourne, Victoria
Photos: Gallery
Posts: 11,694
QuoteOriginally posted by lytrytyr Quote
I believe that Pentax would have liked to have designed the K24/2.8 for a 49mm thread, since they always listed it in with the M lenses that standardized on 49mm,

I think that was a marketing decision - as the K24 has the Pentax brand nameplate around the front element - if they didn't have that, it would have been possible to give the K24 a 49mm filter thread.

QuoteOriginally posted by lytrytyr Quote
The other quality prime option at around 24mm, the ZK 25/2.8, has a 58mm thread.
Sadly those Zeiss lenses have been discontinued - finding one second hand will be difficult.
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
49mm, k-mount, lens, lenses, pentax, pentax lens, slr lens, thread
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Two hypothetical future bodies I'd like to see.. nater Pentax DSLR Discussion 28 09-08-2016 10:16 AM
Some features that I'd like to see (preferably on Pentaxes) asw66 Photographic Technique 9 08-06-2011 09:12 PM
Stuff I'd Like to see 8540tomg Pentax DSLR Discussion 9 03-21-2011 10:04 AM
Self Portraits! I'd like to share and see. metroeloise Post Your Photos! 8 02-15-2009 05:24 PM
Flash I'd like to see someone make mattdm Flashes, Lighting, and Studio 2 11-28-2008 10:42 PM



All times are GMT -7. The time now is 04:30 AM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top