Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
02-01-2009, 10:14 AM   #16
Veteran Member
troyz's Avatar

Join Date: May 2008
Posts: 389
If you're including the Sigma 15mm f/2.8 EX DG fisheye you'll probably want to include the other Sigma fisheyes:

16mm f/2.8 Filtermatic (manual focus)
8mm f/4.0 Filtermatic (manual focus)
8mm f/4.0 EX (autofocus, which is really a bit silly at this focal length )

AFAIK the Sigma 8mm f/3.5 was announced but never released in pentax K mount.

02-01-2009, 11:17 AM   #17
Senior Member
rpriedhorsky's Avatar

Join Date: Dec 2008
Location: Minneapolis
Posts: 210
Original Poster
QuoteOriginally posted by troyz Quote
16mm f/2.8 Filtermatic (manual focus)
8mm f/4.0 Filtermatic (manual focus)
8mm f/4.0 EX (autofocus, which is really a bit silly at this focal length )
troyz, do those first two have automatic aperture stopdown?
02-01-2009, 12:33 PM   #18
Veteran Member
troyz's Avatar

Join Date: May 2008
Posts: 389
QuoteOriginally posted by rpriedhorsky Quote
troyz, do those first two have automatic aperture stopdown?
Yes. Both had an "A" setting and contacts. (BTW, the term "auto-aperture-stopdown" usually refers to any lens that automatically stops down before exposure and reopens afterward, including non-A lenses)

I think there may be some older models without the "A" setting but I'm not sure about that.
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!
17mm, database, f2.8, f3.5, f4, k-mount, lens, pentax, pentax lens, pentax-da, sigma, slr lens, smc
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
18mm-55mm DA kit lens Scorpion Ask B&H Photo! 1 05-27-2010 06:07 AM
Need advice on a 14mm FF versus 18mm APS-C lens CRPhoto Pentax SLR Lens Discussion 8 04-24-2009 09:56 PM
Any cheap options for a lens wider that 18mm? kevinschoenmakers Pentax SLR Lens Discussion 16 04-04-2009 05:26 AM
wanting to understand- lens distortion and 1.5 crop factor slip Pentax DSLR Discussion 10 03-29-2007 06:59 PM



All times are GMT -7. The time now is 11:19 PM. | See also: NikonForums.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