Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
05-25-2009, 01:43 PM   #1
emr
Guest




DA 21mm the only wide SMALL AF lens?

Title pretty much says it all. Is there any other wide (<25mm) small prime lens with AF than the 21mm pancake? K-mount naturally.

05-25-2009, 02:00 PM   #2
Pentaxian
Moderator Emeritus




Join Date: May 2007
Location: Edmonton Alberta, Canada
Photos: Gallery | Albums
Posts: 10,648
Well there's the DA14mm f2.8 or the DA15mm f4 from Pentax. There are other lenses in the used market but older lenses didn't go much wider than 20mm (like the FA20mm) since they were built for film bodies and 20mm was pretty wide. There are lenses like the Zenitar 16mm in M42 mount. and that's only a few of the choices.
05-25-2009, 02:04 PM   #3
emr
Guest




Thanks, Peter. I suppose the M42 lenses are MF only. AF is demanded in this case. DA 14mm doesn't qualify as small in this case. DA 15mm is on the border with regard to size. What I'm looking for should definitely not be bigger than that.

So with these requirements the only ones so far are DA 21mm and maybe DA 15mm. Any others?
05-25-2009, 02:10 PM   #4
Pentaxian
Moderator Emeritus




Join Date: May 2007
Location: Edmonton Alberta, Canada
Photos: Gallery | Albums
Posts: 10,648
Well have a look at Sigma's lineup. They have some fast and wide lenses. But with a lens this wide, the trade off with speed is size. To get anything below f4 you are going to get wide and large. It's physics and unavoidable.

05-25-2009, 02:19 PM   #5
emr
Guest




QuoteOriginally posted by Peter Zack Quote
To get anything below f4 you are going to get wide and large. It's physics and unavoidable.
Well Pentax seems to bend the laws of physics with the 21mm pancake so I thought there might be others.

I guess I just need to buy that lens. If I only can find one at a reasonable price today. The European prices are about 450 at the least and with today's nominal exchange rate that makes more than $600!
05-25-2009, 02:47 PM   #6
Pentaxian
Moderator Emeritus




Join Date: May 2007
Location: Edmonton Alberta, Canada
Photos: Gallery | Albums
Posts: 10,648
Yes but it's an f3.2 lens and a cropped image circle to get it that small.
05-25-2009, 05:19 PM   #7
Veteran Member
creampuff's Avatar

Join Date: May 2007
Location: Singapore
Photos: Gallery
Posts: 3,955
QuoteOriginally posted by Peter Zack Quote
Yes but it's an f3.2 lens and a cropped image circle to get it that small.
The size has got nothing to do with the cropped image circle.
One only needs to look at the older M 20mm f/4 to debunk that notion.
The size is due to the optical design the design engineers have opted for.
05-25-2009, 05:25 PM   #8
Veteran Member




Join Date: Jan 2009
Location: Canada
Posts: 1,255
QuoteOriginally posted by emr Quote
Title pretty much says it all. Is there any other wide (<25mm) small prime lens with AF than the 21mm pancake? K-mount naturally.
Big is beautiful.

Someone here recently reminded me of the excellent FA 20 f/2.8. It doesn't seem that big.

05-26-2009, 12:19 PM   #9
Pentaxian




Join Date: May 2007
Location: WW community of Pentax users
Photos: Gallery | Albums
Posts: 2,171
Photozone found the DA21 "a little better all-in-all" than the FA20.
05-26-2009, 03:26 PM   #10
Veteran Member
roentarre's Avatar

Join Date: Oct 2006
Location: Melbourne, Australia
Posts: 11,794
Da 15mm ltd is really small and has better consistent autofocus ability than Da 21 ltd

Da 14mm f2.8 is not that big either...
05-26-2009, 06:57 PM   #11
Veteran Member
dave9t5's Avatar

Join Date: Feb 2009
Location: Toronto, Canada & Taichung, Taiwan
Photos: Albums
Posts: 316
QuoteOriginally posted by emr Quote
DA 15mm is on the border with regard to size. What I'm looking for should definitely not be bigger than that
Wow, you are pretty specific about size if the DA15 is too much bigger than the DA21:



Must be a pretty special project?
05-26-2009, 08:35 PM   #12
Veteran Member
Sean Nelson's Avatar

Join Date: Sep 2008
Location: Vancouver BC Canada
Posts: 353
QuoteOriginally posted by roentarre Quote
Da 14mm f2.8 is not that big either...
I'm afraid your definition of "not that big" differs from mine...

But I agree that for very wide angle lenses, the DA15 is as small as you're likely to see...
05-27-2009, 05:00 AM   #13
Veteran Member
netuser's Avatar

Join Date: Oct 2008
Location: Azores Islands, Portugal
Photos: Gallery
Posts: 2,241
Pentax FA* 24mm f/2.0 AL IF Lens no reserve free ship en venta en eBay.es (finaliza el 31-may-09 15:27:31 H.Esp)
FA* 24mm in USA for sale on ebay in case anyone has interest.
05-27-2009, 06:03 AM   #14
Veteran Member
farfisa's Avatar

Join Date: Nov 2008
Location: Toronto, Canada
Photos: Gallery
Posts: 1,274
The 24 is also pretty big, especially compared to the 21. But really, the 15 is small.

So 21 and 15. There you go.
05-27-2009, 02:26 PM   #15
Pentaxian
Marc Sabatella's Avatar

Join Date: Sep 2006
Location: Denver, CO
Photos: Gallery
Posts: 10,686
QuoteOriginally posted by farfisa Quote
The 24 is also pretty big, especially compared to the 21. But really, the 15 is small.
The Sigma 24/2.8 ("Super-Wide") is much smaller than the FA24/2. Probably close to the 15/4. And it is (or was, anyhow) available in an AF version.
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!
da 21mm, k-mount, pentax lens, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Tenba Black Label Small Satchel - great small bag! andi Pentax Camera and Field Accessories 2 10-13-2009 07:44 PM
wide angle or small zoom? nodretep Pentax SLR Lens Discussion 5 03-18-2009 07:16 PM
Small things amuse small minds artobest Pentax Film SLR Discussion 17 03-06-2009 01:38 AM
shopping for a wide: 28mm SMC vs Takumar, or even a 21mm DA limited?! shoey Pentax SLR Lens Discussion 3 11-02-2006 07:11 AM



All times are GMT -7. The time now is 06:05 PM. | 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